LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mitsubishi >> 2012 >> Lancer Evolution MR >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 32 (Controller Area Network (Can) - Lancer) >> Diagnosis >> Can Bus Diagnostics >> DIAGNOSTIC ITEM 29: Short To Power Supply Or Ground, Open Circuit Or Line-To-Line Short In The CAN-B Bus Lines >> Diagnosis
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DIAGNOSTIC ITEM 29: Short To Power Supply Or Ground, Open Circuit Or Line-To-Line Short In The CAN-B Bus Lines: Diagnosis

WARNING: This page is about a different variant/trim than selected.

Required Special Tools: 

  1. STEP 1. Check the wiring harness between ETACS-ECU connector C-301 and body ground for a short to ground. Measure the resistance at ETACS-ECU connector C-301. 
    CAUTION: Disconnect the negative battery terminal. For details refer to TEST EQUIPMENT  .
    CAUTION: A digital multimeter should be used. For details refer to TEST EQUIPMENT  .
    CAUTION: The test wiring harness should be used. For details refer to TEST EQUIPMENT  .
    1. Disconnect ETACS-ECU connector C-301, and measure the voltage at the wiring harness side of ETACS-ECU connector.
    2. Measure the resistance between ETACS-ECU connector terminal 6 and body ground.

      OK: 1 kΩ or more 

      Fig 1: Measuring Resistance Between ETACS-ECU Connector C-301 Terminal 6 And Body Ground
      G05385914Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Measure the resistance between ETACS-ECU connector terminal 7 and body ground.

    OK: 1 kΩ or more 

    Q: Do all the resistances measure 1 kΩ or more? 

    1. YES:  Go to Step 2.
    2. NO:  Go to  Step 12.
      Fig 2: Measuring Resistance Between ETACS-ECU Connector C-301 Terminal 7 And Body Ground
      G05385915Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  2. STEP 2. Check the wiring harness between joint connector (CAN1) C-06 and combination meter connector C-04 for a short to ground. Measure the resistance at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and measure the resistance at the wiring harness side of joint connector (CAN1).
    2. Measure the resistance between joint connector (CAN1) terminal 9 and body ground.

      OK: 1 kΩ or more 

      Fig 3: Measuring Resistance Between Joint Connector C-06 Terminal 9 And Body Ground
      G08296885Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Measure the resistance between joint connector (CAN1) terminal 20 and body ground.

    OK: 1 kΩ or more 

    Q: Do all the resistances measure 1 kΩ or more? 

    1. YES < vehicles with KOS >:  Go to Step 3.
    2. YES < vehicles with WCM >:  Go to  Step 4.
    3. NO < vehicles without KOS and WCM >:  Go to  Step 44.
      Fig 4: Measuring Resistance Between Joint Connector C-06 Terminal 20 And Body Ground
      G08296886Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  3. STEP 3. Check the wiring harness between joint connector (CAN1) C-06 and KOS-ECU connector C-31 for a short to ground. Measure the resistance at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and measure the resistance at the wiring harness side of joint connector (CAN1).
    2. Measure the resistance between joint connector (CAN1) terminal 5 and body ground.

      OK: 1 kΩ or more 

      Fig 5: Measuring Resistance Between Joint Connector C-06 Terminal 5 And Body Ground
      G08296887Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Measure the resistance between joint connector (CAN1) terminal 16 and body ground.

    OK: 1 kΩ or more 

    Q: Do all the resistances measure 1 kΩ or more? 

    1. YES:  Go to  Step 5.
    2. NO:  Go to  Step 45.
      Fig 6: Measuring Resistance Between Joint Connector C-06 Terminal 16 And Body Ground
      G08296888Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  4. STEP 4. Check the wiring harness between joint connector (CAN1) C-06 and WCM connector C-09 for a short to ground. Measure the resistance at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and measure the resistance at the wiring harness side of joint connector (CAN1).
    2. Measure the resistance between joint connector (CAN1) terminal 7 and body ground.

      OK: 1 kΩ or more 

      Fig 7: Measuring Resistance Between Joint Connector C-06 Terminal 7 And Body Ground
      G08296889Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Measure the resistance between joint connector (CAN1) terminal 18 and body ground.

    OK: 1 kΩ or more 

    Q: Do all the resistances measure 1 kΩ or more? 

    1. YES:  Go to Step 5.
    2. NO:  Go to  Step 46.
      Fig 8: Measuring Resistance Between Joint Connector C-06 Terminal 18 And Body Ground
      G08296890Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  5. STEP 5. Check the wiring harness between joint connector (CAN1) C-06 and SRS-ECU connector C-122 for a short to ground. Measure the resistance at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and measure the resistance at the wiring harness side of joint connector (CAN1).
    2. Measure the resistance between joint connector (CAN1) terminal 10 and body ground.

      OK: 1 kΩ or more 

      Fig 9: Measuring Resistance Between Joint Connector C-06 Terminal 10 And Body Ground
      G08296891Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Measure the resistance between joint connector (CAN1) terminal 21 and body ground.

    OK: 1 kΩ or more 

    Q: Do all the resistances measure 1 kΩ or more? 

    1. YES:  Go to Step 6.
    2. NO:  Go to  Step 47.
      Fig 10: Measuring Resistance Between Joint Connector C-06 Terminal 21 And Body Ground
      G08296892Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  6. STEP 6. Check the wiring harness between joint connector (CAN1) C-06 and occupant classification-ECU connector D-35-2 for a short to ground. Measure the resistance at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and measure the resistance at the wiring harness side of joint connector (CAN1).
    2. Measure the resistance between joint connector (CAN1) terminal 4 and body ground.

      OK: 1 kΩ or more 

      Fig 11: Measuring Resistance Between Joint Connector C-06 Terminal 4 And Body Ground
      G08296893Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Measure the resistance between joint connector (CAN1) terminal 15 and body ground.

    OK: 1 kΩ or more 

    Q: Do all the resistances measure 1 kΩ or more? 

    1. YES:  Go to Step 7.
    2. NO:  Go to  Step 48.
      Fig 12: Measuring Resistance Between Joint Connector C-06 Terminal 15 And Body Ground
      G08296894Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  7. STEP 7. Check the wiring harness between joint connector (CAN1) C-06 and A/C-ECU connector C-20 < vehicles with A/C > or heater control unit connector C-48 < vehicles without A/C > for a short to ground. Measure the resistance at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and measure the resistance at the wiring harness side of joint connector (CAN1).
    2. Measure the resistance between joint connector (CAN1) terminal 8 and body ground.

      OK: 1 kΩ or more 

      Fig 13: Measuring Resistance Between Joint Connector C-06 Terminal 8 And Body Ground
      G08296895Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Measure the resistance between joint connector (CAN1) terminal 19 and body ground.

    OK: 1 kΩ or more 

    Q: Do all the resistances measure 1 kΩ or more? 

    1. YES < vehicles without MMCS >:  Go to Step 8.
    2. YES < vehicles with MMCS >:  Go to  Step 9.
    3. NO:  Go to  Step 49.
      Fig 14: Measuring Resistance Between Joint Connector C-06 Terminal 19 And Body Ground
      G08296896Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  8. STEP 8. Check the wiring harness between joint connector (CAN1) C-06 and radio and CD player or CD changer connector C-104 for a short to ground. Measure the resistance at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and measure the resistance at the wiring harness side of joint connector (CAN1).
    2. Measure the resistance between joint connector (CAN1) terminal 6 and body ground.

      OK: 1 kΩ or more 

      Fig 15: Measuring Resistance Between Joint Connector C-06 Terminal 6 And Body Ground
      G08296897Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Measure the resistance between joint connector (CAN1) terminal 17 and body ground.

    OK: 1 kΩ or more 

    Q: Do all the resistances measure 1 kΩ or more? 

    1. YES < vehicles without satellite radio >:  Go to  Step 11.
    2. YES < vehicles with satellite radio >:  Go to  Step 10.
    3. NO:  Go to  Step 50.
      Fig 16: Measuring Resistance Between Joint Connector C-06 Terminal 17 And Body Ground
      G08296898Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  9. STEP 9. Check the wiring harness between joint connector (CAN1) C-06 and CAN box unit connector C-108 for a short to ground. Measure the resistance at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and measure the resistance at the wiring harness side of joint connector (CAN1).
    2. Measure the resistance between joint connector (CAN1) terminal 6 and body ground.

      OK: 1 kΩ or more 

      Fig 17: Measuring Resistance Between Joint Connector C-06 Terminal 6 And Body Ground
      G08296897Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Measure the resistance between joint connector (CAN1) terminal 17 and body ground.

    OK: 1 kΩ or more 

    Q: Do all the resistances measure 1 kΩ or more? 

    1. YES < vehicles without satellite radio >:  Go to  Step 11.
    2. YES < vehicles with satellite radio >:  Go to Step 10.
    3. NO:  Go to  Step 51.
      Fig 18: Measuring Resistance Between Joint Connector C-06 Terminal 17 And Body Ground
      G08296898Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  10. STEP 10. Check the wiring harness between joint connector (CAN1) C-06 and satellite radio tuner connector C-17 for a short to ground. Measure the resistance at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and measure the resistance at the wiring harness side of joint connector (CAN1).
    2. Measure the resistance between joint connector (CAN1) terminal 3 and body ground.

      OK: 1 kΩ or more 

      Fig 19: Measuring Resistance Between Joint Connector C-06 Terminal 3 And Body Ground
      G08296901Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Measure the resistance between joint connector (CAN1) terminal 14 and body ground.

    OK: 1 kΩ or more 

    Q: Do all the resistances measure 1 kΩ or more? 

    1. YES:  Go to Step 11.
    2. NO:  Go to  Step 52.
      Fig 20: Measuring Resistance Between Joint Connector C-06 Terminal 14 And Body Ground
      G08296902Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  11. STEP 11. Check the wiring harness between joint connector (CAN1) C-06 and ETACS-ECU connector C-301 for a short to ground. Measure the resistance at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1) and ETACS-ECU connector C-301, and measure the resistance at the wiring harness side of joint connector (CAN1).
    2. Measure the resistance between joint connector (CAN1) terminal 11 and body ground.

      OK: 1 kΩ or more 

      Fig 21: Measuring Resistance Between Joint Connector C-06 Terminal 11 And Body Ground
      G08296903Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Measure the resistance between joint connector (CAN1) terminal 22 and body ground.

    OK: 1 kΩ or more 

    Q: Do all the resistances measure 1 kΩ or more? 

    1. YES:  Go to  Step 53.
    2. NO:  Repair the wiring harness between joint connector (CAN1) C-06 and ETACS-ECU connector C-301.
      Fig 22: Measuring Resistance Between Joint Connector C-06 Terminal 22 And Body Ground
      G08296904Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  12. STEP 12. Check the wiring harness between ETACS-ECU connector C-301 and body ground for a short to power supply. Measure the voltage at ETACS-ECU connector C-301. 
    1. Disconnect ETACS-ECU connector C-301, and measure the voltage at the wiring harness side of ETACS-ECU connector.
    2. Turn the ignition switch to the "ON" position.
    3. Measure the voltage between ETACS-ECU connector terminal 6 and body ground.

      OK: 4.7 V or less 

      Fig 23: Measuring Voltage Between ETACS-ECU Connector C-301 Terminal 6 And Body Ground
      G05385838Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Measure the voltage between ETACS-ECU connector terminal 7 and body ground.

    OK: 4.7 V or less 

    Q: Do all the voltages measure 4.7 V or less? 

    1. YES:  Go to  Step 23.
    2. NO:  Go to Step 13.
      Fig 24: Measuring Voltage Between ETACS-ECU Connector C-301 Terminal 7 And Body Ground
      G05385839Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  13. STEP 13. Check the wiring harness between joint connector (CAN1) C-06 and combination meter connector C-04 for a short to power supply. Measure the voltage at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and measure the voltage at the wiring harness side of joint connector (CAN1).
    2. Connect the negative battery terminal.
    3. Turn the ignition switch to the "ON" position.
    4. Measure the voltage between joint connector (CAN1) terminal 9 and body ground.

      OK: 4.7 V or less 

      Fig 25: Measuring Voltage Between Joint Connector C-06 Terminal 9 And Body Ground
      G08296905Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    5. Measure the voltage between joint connector (CAN1) terminal 20 and body ground.

    OK: 4.7 V or less 

    Q: Do all the voltages measure 4.7 V or less? 

    1. YES < vehicles with KOS >:  Go to Step 14.
    2. YES < vehicles with WCM >:  Go to  Step 15.
    3. NO < vehicles without KOS and WCM >:  Go to  Step 44.
      Fig 26: Measuring Voltage Between Joint Connector C-06 Terminal 20 And Body Ground
      G08296906Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  14. STEP 14. Check the wiring harness between joint connector (CAN1) C-06 and KOS-ECU connector C-31 for a short to power supply. Measure the voltage at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and measure the voltage at the wiring harness side of joint connector (CAN1).
    2. Turn the ignition switch to the "ON" position.
    3. Measure the voltage between joint connector (CAN1) terminal 5 and body ground.

      OK: 4.7 V or less 

      Fig 27: Measuring Voltage Between Joint Connector C-06 Terminal 5 And Body Ground
      G08296907Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Measure the voltage between joint connector (CAN1) terminal 16 and body ground.

    OK: 4.7 V or less 

    Q: Do all the voltages measure 4.7 V or less? 

    1. YES:  Go to  Step 16.
    2. NO:  Go to  Step 45.
      Fig 28: Measuring Voltage Between Joint Connector C-06 Terminal 16 And Body Ground
      G08296908Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  15. STEP 15. Check the wiring harness between joint connector (CAN1) C-06 and WCM connector C-09 for a short to power supply. Measure the voltage at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and measure the voltage at the wiring harness side of joint connector (CAN1).
    2. Turn the ignition switch to the "ON" position.
    3. Measure the voltage between joint connector (CAN1) terminal 7 and body ground.

      OK: 4.7 V or less 

      Fig 29: Measuring Voltage Between Joint Connector C-06 Terminal 7 And Body Ground
      G08296909Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Measure the voltage between joint connector (CAN1) terminal 18 and body ground.

    OK: 4.7 V or less 

    Q: Do all the voltages measure 4.7 V or less? 

    1. YES:  Go to Step 16.
    2. NO:  Go to  Step 46.
      Fig 30: Measuring Voltage Between Joint Connector C-06 Terminal 18 And Body Ground
      G08296910Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  16. STEP 16. Check the wiring harness between joint connector (CAN1) C-06 and SRS-ECU connector C-122 for a short to power supply. Measure the voltage at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and measure the voltage at the wiring harness side of joint connector (CAN1).
    2. Turn the ignition switch to the "ON" position.
    3. Measure the voltage between joint connector (CAN1) terminal 10 and body ground.

      OK: 4.7 V or less 

      Fig 31: Measuring Voltage Between Joint Connector C-06 Terminal 10 And Body Ground
      G08296911Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Measure the voltage between joint connector (CAN1) terminal 21 and body ground.

    OK: 4.7 V or less 

    Q: Do all the voltages measure 4.7 V or less? 

    1. YES:  Go to Step 17.
    2. NO:  Go to  Step 47.
      Fig 32: Measuring Voltage Between Joint Connector C-06 Terminal 21 And Body Ground
      G08296912Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  17. STEP 17. Check the wiring harness between joint connector (CAN1) C-06 and occupant classification-ECU connector D-35-2 for a short to power supply. Measure the voltage at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and measure the voltage at the wiring harness side of joint connector (CAN1).
    2. Turn the ignition switch to the "ON" position.
    3. Measure the voltage between joint connector (CAN1) terminal 4 and body ground.

      OK: 4.7 V or less 

      Fig 33: Measuring Voltage Between Joint Connector C-06 Terminal 4 And Body Ground
      G08296913Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Measure the voltage between joint connector (CAN1) terminal 15 and body ground.

    OK: 4.7 V or less 

    Q: Do all the voltages measure 4.7 V or less? 

    1. YES:  Go to Step 18.
    2. NO:  Go to  Step 48.
      Fig 34: Measuring Voltage Between Joint Connector C-06 Terminal 15 And Body Ground
      G08296914Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  18. STEP 18. Check the wiring harness between joint connector (CAN1) C-06 and A/C-ECU connector C-20 < vehicles with A/C > or heater control unit connector C-48 < vehicles without A/C > for a short to power supply. Measure the voltage at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and measure the voltage at the wiring harness side of joint connector (CAN1).
    2. Turn the ignition switch to the "ON" position.
    3. Measure the voltage between joint connector (CAN1) terminal 8 and body ground.

      OK: 4.7 V or less 

      Fig 35: Measuring Voltage Between Joint Connector C-06 Terminal 8 And Body Ground
      G08296915Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Measure the voltage between joint connector (CAN1) terminal 19 and body ground.

    OK: 4.7 V or less 

    Q: Do all the voltages measure 4.7 V or less? 

    1. YES < vehicles without MMCS >:  Go to Step 19.
    2. YES < vehicles with MMCS >:  Go to  Step 20.
    3. NO:  Go to  Step 49.
      Fig 36: Measuring Voltage Between Joint Connector C-06 Terminal 19 And Body Ground
      G08296916Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  19. STEP 19. Check the wiring harness between joint connector (CAN1) C-06 and radio and CD player or CD changer connector C-104 for a short to power supply. Measure the voltage at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and measure the voltage at the wiring harness side of joint connector (CAN1).
    2. Turn the ignition switch to the "ON" position.
    3. Measure the voltage between joint connector (CAN1) terminal 6 and body ground.

      OK: 4.7 V or less 

      Fig 37: Measuring Voltage Between Joint Connector C-06 Terminal 6 And Body Ground
      G08296917Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Measure the voltage between joint connector (CAN1) terminal 17 and body ground.

    OK: 4.7 V or less 

    Q: Do all the voltages measure 4.7 V or less? 

    1. YES < vehicles without satellite radio >:  Go to  Step 22.
    2. YES < vehicles with satellite radio >:  Go to  Step 21.
    3. NO:  Go to  Step 50.
      Fig 38: Measuring Voltage Between Joint Connector C-06 Terminal 17 And Body Ground
      G08296918Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  20. STEP 20. Check the wiring harness between joint connector (CAN1) C-06 and CAN box unit connector C-108 for a short to power supply. Measure the voltage at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and measure the voltage at the wiring harness side of joint connector (CAN1).
    2. Turn the ignition switch to the "ON" position.
    3. Measure the voltage between joint connector (CAN1) terminal 6 and body ground.

      OK: 4.7 V or less 

      Fig 39: Measuring Voltage Between Joint Connector C-06 Terminal 6 And Body Ground
      G08296917Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Measure the voltage between joint connector (CAN1) terminal 17 and body ground.

    OK: 4.7 V or less 

    Q: Do all the voltages measure 4.7 V or less? 

    1. YES < vehicles without satellite radio >:  Go to  Step 22.
    2. YES < vehicles with satellite radio >:  Go to Step 21.
    3. NO:  Go to  Step 51.
      Fig 40: Measuring Voltage Between Joint Connector C-06 Terminal 17 And Body Ground
      G08296918Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  21. STEP 21. Check the wiring harness between joint connector (CAN1) C-06 and satellite radio tuner connector C-17 for a short to power supply. Measure the voltage at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and measure the voltage at the wiring harness side of joint connector (CAN1).
    2. Turn the ignition switch to the "ON" position.
    3. Measure the voltage between joint connector (CAN1) terminal 3 and body ground.

      OK: 4.7 V or less 

      Fig 41: Measuring Voltage Between Joint Connector C-06 Terminal 3 And Body Ground
      G08296921Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Measure the voltage between joint connector (CAN1) terminal 14 and body ground.

    OK: 4.7 V or less 

    Q: Do all the voltages measure 4.7 V or less? 

    1. YES:  Go to Step 22.
    2. NO:  Go to  Step 52.
      Fig 42: Measuring Voltage Between Joint Connector C-06 Terminal 14 And Body Ground
      G08296922Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  22. STEP 22. Check the wiring harness between joint connector (CAN1) C-06 and ETACS-ECU connector C-301 for a short to power supply. Measure the voltage at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and measure the voltage at the wiring harness side of joint connector (CAN1).
    2. Turn the ignition switch to the "ON" position.
    3. Measure the voltage between joint connector (CAN1) terminal 11 and body ground.

      OK: 4.7 V or less 

      Fig 43: Measuring Voltage Between Joint Connector C-06 Terminal 11 And Body Ground
      G08296923Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Measure the voltage between joint connector (CAN1) terminal 22 and body ground.

    OK: 4.7 V or less 

    Q: Do all the voltages measure 4.7 V or less? 

    1. YES:  Go to  Step 53.
    2. NO:  Repair the wiring harness between joint connector (CAN1) C-06 and ETACS-ECU connector C-301.
      Fig 44: Measuring Voltage Between Joint Connector C-06 Terminal 22 And Body Ground
      G08296924Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  23. STEP 23. Check the wiring harness for line-to-line short. Measure the resistance at ETACS-ECU connector C-301 
    CAUTION: Disconnect the negative battery terminal. For details refer to TEST EQUIPMENT  .
    1. Disconnect ETACS-ECU connector C-301, and check that there is continuity at the harness side of ETACS-ECU.
    2. Check that there is continuity between ETACS-ECU connector terminals 6 and 7.

    OK: No continuity 

    Q: Is the check result normal? 

    1. YES:  Go to  Step 34.
    2. NO:  Go to Step 24.
      Fig 45: Checking Continuity Between ETACS-ECU Connector C-301 Terminals 6 And 7
      G05385962Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  24. STEP 24. Check the wiring harness between joint connector (CAN1) C-06 and combination meter connector C-04 for line-to-line short. Measure the resistance at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and check that there is continuity at the harness side of joint connector (CAN1).
    2. Check that there is continuity between joint connector (CAN1) terminals 9 and 20.

    OK: No continuity 

    Q: Is the check result normal? 

    1. YES < vehicles with KOS >:  Go to Step 25.
    2. YES < vehicles with WCM >:  Go to  Step 26.
    3. NO < vehicles without KOS and WCM >:  Go to  Step 44.
      Fig 46: Checking Continuity Between Joint Connector C-06 Terminals 9 And 20
      G08297007Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  25. STEP 25. Check the wiring harness between joint connector (CAN1) C-06 and KOS-ECU connector C-31 for line-to-line short. Measure the resistance at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and check that there is continuity at the harness side of joint connector (CAN1).
    2. Check that there is continuity between joint connector (CAN1) terminals 5 and 16.

    OK: No continuity 

    Q: Is the check result normal? 

    1. YES:  Go to  Step 27.
    2. NO:  Go to  Step 45.
      Fig 47: Checking Continuity Between Joint Connector C-06 Terminals 5 And 16
      G08297008Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  26. STEP 26. Check the wiring harness between joint connector (CAN1) C-06 and WCM connector C-09 for line-to-line short. Measure the resistance at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and check that there is continuity at the harness side of joint connector (CAN1).
    2. Check that there is continuity between joint connector (CAN1) terminals 7 and 18.

    OK: No continuity 

    Q: Is the check result normal? 

    1. YES:  Go to Step 27.
    2. NO:  Go to  Step 46.
      Fig 48: Checking Continuity Between Joint Connector C-06 Terminals 7 And 18
      G08297009Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  27. STEP 27. Check the wiring harness between joint connector (CAN1) C-06 and SRS-ECU connector C-122 for line-to-line short. Measure the resistance at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and check that there is continuity at the harness side of joint connector (CAN1).
    2. Check that there is continuity between joint connector (CAN1) terminals 10 and 21.

    OK: No continuity 

    Q: Is the check result normal? 

    1. YES:  Go to Step 28.
    2. NO:  Go to  Step 47.
      Fig 49: Checking Continuity Between Joint Connector C-06 Terminals 10 And 21
      G08297010Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  28. STEP 28. Check the wiring harness between joint connector (CAN1) C-06 and occupant classification-ECU connector D-35-2 for line-to-line short. Measure the resistance at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and check that there is continuity at the harness side of joint connector (CAN1).
    2. Check that there is continuity between joint connector (CAN1) terminals 4 and 15.

    OK: No continuity 

    Q: Is the check result normal? 

    1. YES:  Go to Step 29.
    2. NO:  Go to  Step 48.
      Fig 50: Checking Continuity Between Joint Connector C-06 Terminals 4 And 15
      G08297011Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  29. STEP 29. Check the wiring harness between joint connector (CAN1) C-06 and A/C-ECU connector C-20 < vehicles with A/C > or heater control unit connector C-48 < vehicles without A/C > for line-to-line short. Measure the resistance at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and check that there is continuity at the harness side of joint connector (CAN1).
    2. Check that there is continuity between joint connector (CAN1) terminals 8 and 19.

    OK: No continuity 

    Q: Is the check result normal? 

    1. YES < vehicles without MMCS >:  Go to Step 30.
    2. YES < vehicles with MMCS >:  Go to  Step 31.
    3. NO:  Go to  Step 49.
      Fig 51: Checking Continuity Between Joint Connector C-06 Terminals 8 And 19
      G08297012Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  30. STEP 30. Check the wiring harness between joint connector (CAN1) C-06 and radio and CD player or CD changer connector C-104 for line-to-line short. Measure the resistance at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and check that there is continuity at the harness side of joint connector (CAN1).
    2. Check that there is continuity between joint connector (CAN1) terminals 6 and 17.

    OK: No continuity 

    Q: Is the check result normal? 

    1. YES < vehicles without satellite radio >:  Go to  Step 33.
    2. YES < vehicles with satellite radio >:  Go to  Step 32.
    3. NO:  Go to  Step 50.
      Fig 52: Checking Continuity Between Joint Connector C-06 Terminals 6 And 17
      G08297013Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  31. STEP 31. Check the wiring harness between joint connector (CAN1) C-06 and CAN box unit connector C-108 for line-to-line short. Measure the resistance at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and check that there is continuity at the harness side of joint connector (CAN1).
    2. Check that there is continuity between joint connector (CAN1) terminals 6 and 17.

    OK: No continuity 

    Q: Is the check result normal? 

    1. YES < vehicles without satellite radio >:  Go to  Step 33.
    2. YES < vehicles with satellite radio >:  Go to Step 32.
    3. NO:  Go to  Step 51.
      Fig 53: Checking Continuity Between Joint Connector C-06 Terminals 6 And 17
      G08297013Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  32. STEP 32. Check the wiring harness between joint connector (CAN1) C-06 and satellite radio tuner connector C-17 for line-to-line short. Measure the resistance at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1), and check that there is continuity at the harness side of joint connector (CAN1).
    2. Check that there is continuity between joint connector (CAN1) terminals 3 and 14.

    OK: No continuity 

    Q: Is the check result normal? 

    1. YES:  Go to Step 33.
    2. NO:  Go to  Step 52.
      Fig 54: Checking Continuity Between Joint Connector C-06 Terminals 3 And 14
      G08297015Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  33. STEP 33. Check the wiring harness between joint connector (CAN1) C-06 and ETACS-ECU connector C-301 for line-to-line short. Measure the resistance at joint connector (CAN1) C-06. 
    1. Disconnect joint connector (CAN1) and ETACS-ECU connector C-301, and check that there is continuity at the harness side of joint connector (CAN1).
    2. Check that there is continuity between joint connector (CAN1) terminals 11 and 22.

    OK: No continuity 

    Q: Is the check result normal? 

    1. YES:  Go to  Step 53.
    2. NO:  Repair the wiring harness between joint connector (CAN1) C-06 and ETACS-ECU connector C-301.
      Fig 55: Checking Continuity Between Joint Connector C-06 Terminals 11 And 22
      G08297016Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  34. STEP 34. Check the wiring harness between joint connector (CAN1) C-06 and combination meter connector C-04 for open circuit. 
    CAUTION: Strictly observe the specified wiring harness repair procedure. For details refer to TEST EQUIPMENT  .
    1. Disconnect joint connector (CAN1) C-06 and combination meter connector C-301, and check the wiring harness.
    2. Check the wiring harness between joint connector (CAN1) C-06 (terminal 9) and combination meter connector C-04 (terminal 14)

      OK: Continuity exists (2 Ω or less) 

      Fig 56: Checking Wiring Harness Between Joint Connector C-06 Terminal 9 And Combination Meter Connector C-04 Terminal 14
      G08297017Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Check the wiring harness between joint connector (CAN1) C-06 (terminal 20) and combination meter connector C-04 (terminal 15)

    OK: Continuity exists (2 Ω or less) 

    Q: Is the wiring harness between joint connector (CAN1) C-06 and combination meter connector C-04 in good condition? 

    1. YES < vehicles with KOS >:  Go to Step 35.
    2. YES < vehicles with WCM >:  Go to  Step 36.
    3. NO < vehicles without KOS and WCM >:  Go to  Step 44.
      Fig 57: Checking Wiring Harness Between Joint Connector C-06 Terminal 20 And Combination Meter Connector C-04 Terminal 15
      G08297018Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  35. STEP 35. Check the wiring harness between joint connector (CAN1) C-06 and KOS-ECU connector C-31 for open circuit. 
    1. Disconnect joint connector (CAN1) C-06 and KOS-ECU connector C-31, and check the wiring harness.
    2. Check the wiring harness between joint connector (CAN1) C-06 (terminal 5) and KOS-ECU connector C-31 (terminal 1)

      OK: Continuity exists (2 Ω or less) 

      Fig 58: Checking Wiring Harness Between Joint Connector C-06 Terminal 5 And KOS-ECU Connector C-31 Terminal 1
      G08297019Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Check the wiring harness between joint connector (CAN1) C-06 (terminal 16) and KOS-ECU connector C-31 (terminal 2)

    OK: Continuity exists (2 Ω or less) 

    Q: Is the wiring harness between joint connector (CAN1) C-06 and KOS-ECU connector C-31 in good condition? 

    1. YES:  Go to  Step 37.
    2. NO:  Go to  Step 45.
      Fig 59: Checking Wiring Harness Between Joint Connector C-06 Terminal 16 And KOS-ECU Connector C-31 Terminal 2
      G08297020Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  36. STEP 36. Check the wiring harness between joint connector (CAN1) C-06 and WCM connector C-09 for open circuit. 
    1. Disconnect joint connector (CAN1) C-06 and WCM connector C-09, and check the wiring harness.
    2. Check the wiring harness between joint connector (CAN1) C-06 (terminal 7) and WCM connector C-09 (terminal 11)

      OK: Continuity exists (2 Ω or less) 

      Fig 60: Checking Wiring Harness Between Joint Connector C-06 Terminal 7 And WCM Connector C-09 Terminal 11
      G08297021Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Check the wiring harness between joint connector (CAN1) C-06 (terminal 18) and WCM connector C-09 (terminal 10)

    OK: Continuity exists (2 Ω or less) 

    Q: Is the wiring harness between joint connector (CAN1) C-06 and WCM connector C-09 in good condition? 

    1. YES:  Go to Step 37.
    2. NO:  Go to  Step 46.
      Fig 61: Checking Wiring Harness Between Joint Connector C-06 Terminal 18 And WCM Connector C-09 Terminal 10
      G08297022Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  37. STEP 37. Check the wiring harness between joint connector (CAN1) C-06 and SRS-ECU connector C-122 for open circuit. 
    1. Disconnect joint connector (CAN1) C-06 and SRS-ECU connector C-122, and check the wiring harness.
    2. Check the wiring harness between joint connector (CAN1) C-06 (terminal 10) and SRS-ECU connector C-122 (terminal 15)

      OK: Continuity exists (2 Ω or less) 

      Fig 62: Checking Wiring Harness Between Joint Connector C-06 Terminal 10 And SRS-ECU Connector C-122 Terminal 15
      G08297023Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Check the wiring harness between joint connector (CAN1) C-06 (terminal 21) and SRS-ECU connector C-122 (terminal 16)

    OK: Continuity exists (2 Ω or less) 

    Q: Is the wiring harness between joint connector (CAN1) C-06 and SRS-ECU connector C-122 in good condition? 

    1. YES:  Go to Step 38.
    2. NO:  Go to  Step 47.
      Fig 63: Checking Wiring Harness Between Joint Connector C-06 Terminal 21 And SRS-ECU Connector C-122 Terminal 16
      G08297024Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  38. STEP 38. Check the wiring harness between joint connector (CAN1) C-06 and occupant classification-ECU connector D-35-2 for open circuit. 
    1. Disconnect joint connector (CAN1) C-06 and occupant classification-ECU connector D-35-2, and check the wiring harness.
    2. Check the wiring harness between joint connector (CAN1) C-06 (terminal 4) and occupant classification-ECU connector D-35-2 (terminal 24)

      OK: Continuity exists (2 Ω or less) 

      Fig 64: Checking Wiring Harness Between Joint Connector C-06 Terminal 4 And Occupant Classification-ECU Connector D-35-2 Terminal 24
      G08297025Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Check the wiring harness between joint connector (CAN1) C-06 (terminal 15) and occupant classification-ECU connector D-35-2 (terminal 25)

    OK: Continuity exists (2 Ω or less) 

    Q: Is the wiring harness between joint connector (CAN1) C-06 and occupant classification-ECU connector D-35-2 in good condition? 

    1. YES:  Go to Step 39.
    2. NO:  Go to  Step 48.
      Fig 65: Checking Wiring Harness Between Joint Connector C-06 Terminal 15 And Occupant Classification-ECU Connector D-35-2 Terminal 25
      G08297026Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  39. STEP 39. Check the wiring harness between joint connector (CAN1) C-06 and A/C-ECU connector C-20 < vehicles with A/C > or heater control unit connector C-48 < vehicles without A/C > for open circuit. 
    1. Disconnect joint connector (CAN1) C-06 and A/C-ECU connector C-20 < vehicles with A/C > or heater control unit connector C-48 < vehicles without A/C >, and check the wiring harness.
    2. Check the wiring harness between joint connector (CAN1) C-06 (terminal 8) and A/C-ECU connector C-20 < vehicles with A/C > or heater control unit connector C-48 < vehicles without A/C > (terminal 11)

      OK: Continuity exists (2 Ω or less) 

      Fig 66: Checking Wiring Harness Between Joint Connector C-06 Terminal 8 And A/C-ECU Connector C-20 Or Heater Control Unit Connector C-48 Terminal 11
      G08297027Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Check the wiring harness between joint connector (CAN1) C-06 (terminal 19) and A/C-ECU connector C-20 < vehicles with A/C > or heater control unit connector C-48 < vehicles without A/C > (terminal 12)

    OK: Continuity exists (2 Ω or less) 

    Q: Is the wiring harness between joint connector (CAN1) C-06 and A/C-ECU connector C-20 < vehicles with A/C > or heater control unit connector C-48 < vehicles without A/C > in good condition? 

    1. YES < vehicles without MMCS >:  Go to  Step 41.
    2. YES < vehicles with MMCS >:  Go to Step 40.
    3. NO:  Go to  Step 48.
      Fig 67: Checking Wiring Harness Between Joint Connector C-06 Terminal 19 And A/C-ECU Connector C-20 Or Heater Control Unit Connector C-48 Terminal 12
      G08297028Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  40. STEP 40. Check the wiring harness between joint connector (CAN1) C-06 and radio and CD player or CD changer connector C-104 for open circuit. 
    1. Disconnect joint connector (CAN1) C-06 and radio and CD player or CD changer connector C-104, and check the wiring harness.
    2. Check the wiring harness between joint connector (CAN1) C-06 (terminal 6) and radio and CD player or CD changer connector C-104 (terminal 23)

      OK: Continuity exists (2 Ω or less) 

      Fig 68: Checking Wiring Harness Between Joint Connector C-06 Terminal 6 And Radio And CD Player Or CD Changer Connector C-104 Terminal 23
      G08297029Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Check the wiring harness between joint connector (CAN1) C-06 (terminal 17) and radio and CD player or CD changer connector C-104 (terminal 33)

    OK: Continuity exists (2 Ω or less) 

    Q: Is the wiring harness between joint connector (CAN1) C-06 and radio and CD player or CD changer connector C-104 in good condition? 

    1. YES < vehicles without satellite radio >:  Go to  Step 43.
    2. YES < vehicles with satellite radio >:  Go to  Step 42.
    3. NO:  Go to  Step 50.
      Fig 69: Checking Wiring Harness Between Joint Connector C-06 Terminal 17 And Radio And CD Player Or CD Changer Connector C-104 Terminal 33
      G08297030Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  41. STEP 41. Check the wiring harness between joint connector (CAN1) C-06 and CAN box unit connector C-108 for open circuit. 
    1. Disconnect joint connector (CAN1) C-06 and CAN box unit connector C-108, and check the wiring harness.
    2. Check the wiring harness between joint connector (CAN1) C-06 (terminal 6) and CAN box unit connector C-108 (terminal 8)

      OK: Continuity exists (2 Ω or less) 

      Fig 70: Checking Wiring Harness Between Joint Connector C-06 Terminal 6 And CAN Box Unit Connector C-108 Terminal 8
      G08297031Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Check the wiring harness between joint connector (CAN1) C-06 (terminal 17) and CAN box unit connector C-108 (terminal 9)

    OK: Continuity exists (2 Ω or less) 

    Q: Is the wiring harness between joint connector (CAN1) C-06 and CAN box unit connector C-108 in good condition? 

    1. YES < vehicles without satellite radio >:  Go to  Step 43.
    2. YES < vehicles with satellite radio >:  Go to Step 42.
    3. NO:  Go to  Step 51.
      Fig 71: Checking Wiring Harness Between Joint Connector C-06 Terminal 17 And CAN Box Unit Connector C-108 Terminal 9
      G08297032Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  42. STEP 42. Check the wiring harness between joint connector (CAN1) C-06 and satellite radio tuner connector C-17 for open circuit. 
    1. Disconnect joint connector (CAN1) C-06 and satellite radio tuner connector C-17, and check the wiring harness.
    2. Check the wiring harness between joint connector (CAN1) C-06 (terminal 3) and satellite radio tuner connector C-17 (terminal 4)

      OK: Continuity exists (2 Ω or less) 

      Fig 72: Checking Wiring Harness Between Joint Connector C-06 Terminal 3 And Satellite Radio Tuner Connector C-17 Terminal 4
      G08297033Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Check the wiring harness between joint connector (CAN1) C-06 (terminal 14) and satellite radio tuner connector C-17 (terminal 11)

    OK: Continuity exists (2 Ω or less) 

    Q: Is the wiring harness between joint connector (CAN1) C-06 and satellite radio tuner connector C-17 in good condition? 

    1. YES:  Go to Step 43.
    2. NO:  Go to  Step 52.
      Fig 73: Checking Wiring Harness Between Joint Connector C-06 Terminal 14 And Satellite Radio Tuner Connector C-17 Terminal 11
      G08297034Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  43. STEP 43. Check the wiring harness between joint connector (CAN1) C-06 and ETACS-ECU connector C-301 for open circuit. 
    1. Disconnect joint connector (CAN1) C-06 and ETACS-ECU connector C-301, and check the wiring harness.
    2. Check the wiring harness between joint connector (CAN1) C-06 (terminal 11) and ETACS-ECU connector C-301 (terminal 6)

      OK: Continuity exists (2 Ω or less) 

      Fig 74: Checking Wiring Harness Between Joint Connector C-06 Terminal 11 And ETACS-ECU Connector C-301 Terminal 6
      G08297035Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Check the wiring harness between joint connector (CAN1) C-06 (terminal 22) and ETACS-ECU connector C-301 (terminal 7)

    OK: Continuity exists (2 Ω or less) 

    Q: Is the wiring harness between joint connector (CAN1) C-06 and ETACS-ECU connector C-301 in good condition? 

    1. YES:  Go to  Step 53.
    2. NO:  Repair the wiring harness between joint connector (CAN1) C-06 and ETACS-ECU connector C-301.
      Fig 75: Checking Wiring Harness Between Joint Connector C-06 Terminal 22 And ETACS-ECU Connector C-301 Terminal 7
      G08297036Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  44. STEP 44. Using scan tool MB991958, diagnose the CAN bus line. (checking the combination meter for internal failure) 
    CAUTION: Strictly observe the specified wiring harness repair procedure. For details refer to TEST EQUIPMENT  .
    CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
    1. Disconnect combination meter connector C-04.
    2. Connect scan tool MB991958 to the data link connector.
    3. Turn the ignition switch to the "ON" position.
      Fig 76: Connecting Scan Tool To Data Link Connector
      G08297037Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Diagnose CAN bus lines, and check if the scan tool MB991958 screen is as shown in the illustration.

    OK: The display of the scan tool MB991958 is as shown in the illustration. 

    Q: Does scan tool MB991958 screen correspond to the illustration? 

    1. YES:  Repair the wiring harness between joint connector (CAN1) C-06 and combination meter connector C-04.
    2. NO:  Check combination meter connector C-04, and repair if necessary. If the combination meter connector is in good condition, replace the combination meter.
      Fig 77: Scan Tool Screen Display - Diagnose CAN Bus Lines (Except Ralliart)
      G07030978Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
      Fig 78: Scan Tool Screen Display - Diagnose CAN Bus Lines (Ralliart)
      G07030979Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  45. STEP 45. Using scan tool MB991958, diagnose the CAN bus line. (checking the KOS-ECU for internal failure) 
    CAUTION: Strictly observe the specified wiring harness repair procedure. For details refer to TEST EQUIPMENT  .
    CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
    1. Disconnect KOS-ECU connector C-31.
    2. Connect scan tool MB991958 to the data link connector.
    3. Turn the ignition switch to the "ON" position.
      Fig 79: Connecting Scan Tool To Data Link Connector
      G08297040Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Diagnose CAN bus lines, and check if the scan tool MB991958 screen is as shown in the illustration.

    OK: The display of the scan tool MB991958 is as shown in the illustration. 

    Q: Does scan tool MB991958 screen correspond to the illustration? 

    1. YES:  Repair the wiring harness between joint connector (CAN1) C-06 and KOS-ECU connector C-31.
    2. NO:  Check KOS-ECU connector C-31, and repair if necessary. If the KOS-ECU connector is in good condition, replace the KOS-ECU.
      Fig 80: Scan Tool Screen Display - Diagnose CAN Bus Lines (Except Ralliart)
      G07030978Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
      Fig 81: Scan Tool Screen Display - Diagnose CAN Bus Lines (Ralliart)
      G07030979Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  46. STEP 46. Using scan tool MB991958, diagnose the CAN bus line. (checking the WCM for internal failure) 
    CAUTION: Strictly observe the specified wiring harness repair procedure. For details refer to TEST EQUIPMENT  .
    CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
    1. Disconnect WCM connector C-09.
    2. Connect scan tool MB991958 to the data link connector.
    3. Turn the ignition switch to the "ON" position.
      Fig 82: Connecting Scan Tool To Data Link Connector
      G08297043Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Diagnose CAN bus lines, and check if the scan tool MB991958 screen is as shown in the illustration.

    OK: The display of the scan tool MB991958 is as shown in the illustration. 

    Q: Does scan tool MB991958 screen correspond to the illustration? 

    1. YES:  Repair the wiring harness between joint connector (CAN1) C-06 and WCM connector C-09.
    2. NO:  Check WCM connector C-09, and repair if necessary. If the WCM connector is in good condition, replace the WCM.
      Fig 83: Scan Tool Screen Display - Diagnose CAN Bus Lines (Except Ralliart)
      G07030978Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
      Fig 84: Scan Tool Screen Display - Diagnose CAN Bus Lines (Ralliart)
      G07030979Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  47. STEP 47. Using scan tool MB991958, diagnose the CAN bus line. (checking the SRS-ECU for internal failure) 
    CAUTION: Strictly observe the specified wiring harness repair procedure. For details refer to TEST EQUIPMENT  .
    CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
    1. Disconnect SRS-ECU connector C-122.
    2. Connect scan tool MB991958 to the data link connector.
    3. Turn the ignition switch to the "ON" position.
      Fig 85: Connecting Scan Tool To Data Link Connector
      G08297046Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Diagnose CAN bus lines, and check if the scan tool MB991958 screen is as shown in the illustration.

    OK: The display of the scan tool MB991958 is as shown in the illustration. 

    Q: Does scan tool MB991958 screen correspond to the illustration? 

    1. YES:  Repair the wiring harness between joint connector (CAN1) C-06 and SRS-ECU connector C-122.
    2. NO:  Check SRS-ECU connector C-122, and repair if necessary. If the SRS-ECU connector is in good condition, replace the SRS-ECU.
      Fig 86: Scan Tool Screen Display - Diagnose CAN Bus Lines (Except Ralliart)
      G07030978Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
      Fig 87: Scan Tool Screen Display - Diagnose CAN Bus Lines (Ralliart)
      G07030979Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  48. STEP 48. Using scan tool MB991958, diagnose the CAN bus line. (checking the occupant classification-ECU for internal failure) 
    CAUTION: Strictly observe the specified wiring harness repair procedure. For details refer to TEST EQUIPMENT  .
    CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
    1. Disconnect occupant classification-ECU connector D-35-2.
    2. Connect scan tool MB991958 to the data link connector.
    3. Turn the ignition switch to the "ON" position.
      Fig 88: Connecting Scan Tool To Data Link Connector
      G08297049Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Diagnose CAN bus lines, and check if the scan tool MB991958 screen is as shown in the illustration.

    OK: The display of the scan tool MB991958 is as shown in the illustration. 

    Q: Does scan tool MB991958 screen correspond to the illustration? 

    1. YES:  Repair the wiring harness between joint connector (CAN1) C-06 and occupant classification-ECU connector D-35-2.
    2. NO:  Check occupant classification-ECU connector D-35-2, and repair if necessary. If the occupant classification-ECU connector is in good condition, replace the occupant classification-ECU.
      Fig 89: Scan Tool Screen Display - Diagnose CAN Bus Lines (Except Ralliart)
      G07030978Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
      Fig 90: Scan Tool Screen Display - Diagnose CAN Bus Lines (Ralliart)
      G07030979Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  49. STEP 49. Using scan tool MB991958, diagnose the CAN bus line. (checking the A/C-ECU < vehicles with A/C > or heater control unit < vehicles without A/C > for internal failure) 
    CAUTION: Strictly observe the specified wiring harness repair procedure. For details refer to TEST EQUIPMENT  .
    CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
    1. Disconnect A/C-ECU connector C-20 < vehicles with A/C > or heater control unit connector C-48 < vehicles without A/C >.
    2. Connect scan tool MB991958 to the data link connector.
    3. Turn the ignition switch to the "ON" position.
      Fig 91: Connecting Scan Tool To Data Link Connector
      G08297052Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Diagnose CAN bus lines, and check if the scan tool MB991958 screen is as shown in the illustration.

    OK: The display of the scan tool MB991958 is as shown in the illustration. 

    Q: Does scan tool MB991958 screen correspond to the illustration? 

    1. YES:  Repair the wiring harness between joint connector (CAN1) C-06 and A/C-ECU connector C-20 < vehicles with A/C > or heater control unit connector C-48 < vehicles without A/C >.
    2. NO:  Check A/C-ECU connector C-20 < vehicles with A/C > or heater control unit connector C-48 < vehicles without A/C >, and repair if necessary. If the A/C-ECU < vehicles with A/C > or heater control unit < vehicles without A/C > connector is in good condition, replace the A/C-ECU < vehicles with A/C > or heater control unit < vehicles without A/C >.
      Fig 92: Scan Tool Screen Display - Diagnose CAN Bus Lines (Except Ralliart)
      G07030978Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
      Fig 93: Scan Tool Screen Display - Diagnose CAN Bus Lines (Ralliart)
      G07030979Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  50. STEP 50. Using scan tool MB991958, diagnose the CAN bus line. (checking the radio and CD player or CD changer for internal failure) 
    CAUTION: Strictly observe the specified wiring harness repair procedure. For details refer to TEST EQUIPMENT  .
    CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
    1. Disconnect radio and CD player or CD changer connector C-104.
    2. Connect scan tool MB991958 to the data link connector.
    3. Turn the ignition switch to the "ON" position.
      Fig 94: Connecting Scan Tool To Data Link Connector
      G08297055Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Diagnose CAN bus lines, and check if the scan tool MB991958 screen is as shown in the illustration.

    OK: The display of the scan tool MB991958 is as shown in the illustration. 

    Q: Does scan tool MB991958 screen correspond to the illustration? 

    1. YES:  Repair the wiring harness between joint connector (CAN1) C-06 and radio and CD player or CD changer connector C-104.
    2. NO:  Check radio and CD player or CD changer connector C-104, and repair if necessary. If the radio and CD player or CD changer connector is in good condition, replace the radio and CD player or CD changer.
      Fig 95: Scan Tool Screen Display - Diagnose CAN Bus Lines (Except Ralliart)
      G07030978Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
      Fig 96: Scan Tool Screen Display - Diagnose CAN Bus Lines (Ralliart)
      G07030979Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  51. STEP 51. Using scan tool MB991958, diagnose the CAN bus line. (checking the CAN box unit for internal failure) 
    CAUTION: Strictly observe the specified wiring harness repair procedure. For details refer to TEST EQUIPMENT  .
    CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
    1. Disconnect CAN box unit connector C-108.
    2. Connect scan tool MB991958 to the data link connector.
    3. Turn the ignition switch to the "ON" position.
      Fig 97: Connecting Scan Tool To Data Link Connector
      G08297058Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Diagnose CAN bus lines, and check if the scan tool MB991958 screen is as shown in the illustration.

    OK: The display of the scan tool MB991958 is as shown in the illustration. 

    Q: Does scan tool MB991958 screen correspond to the illustration? 

    1. YES:  Repair the wiring harness between joint connector (CAN1) C-06 and CAN box unit connector C-108.
    2. NO:  Check CAN box unit connector C-108, and repair if necessary. If the CAN box unit connector is in good condition, replace the CAN box unit.
      Fig 98: Scan Tool Screen Display - Diagnose CAN Bus Lines (Except Ralliart)
      G07030978Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
      Fig 99: Scan Tool Screen Display - Diagnose CAN Bus Lines (Ralliart)
      G07030979Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  52. STEP 52. Using scan tool MB991958, diagnose the CAN bus line. (checking the satellite radio tuner for internal failure) 
    CAUTION: Strictly observe the specified wiring harness repair procedure. For details refer to TEST EQUIPMENT  .
    CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
    1. Disconnect satellite radio tuner connector C-17.
    2. Connect scan tool MB991958 to the data link connector.
    3. Turn the ignition switch to the "ON" position.
      Fig 100: Connecting Scan Tool To Data Link Connector
      G08297061Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Diagnose CAN bus lines, and check if the scan tool MB991958 screen is as shown in the illustration.

    OK: The display of the scan tool MB991958 is as shown in the illustration. 

    Q: Does scan tool MB991958 screen correspond to the illustration? 

    1. YES:  Repair the wiring harness between joint connector (CAN1) C-06 and satellite radio tuner connector C-17.
    2. NO:  Check satellite radio tuner connector C-17, and repair if necessary. If the satellite radio tuner connector is in good condition, replace the satellite radio tuner.
      Fig 101: Scan Tool Screen Display - Diagnose CAN Bus Lines (Except Ralliart)
      G07030978Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
      Fig 102: Scan Tool Screen Display - Diagnose CAN Bus Lines (Ralliart)
      G07030979Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  53. STEP 53. Using scan tool MB991958, diagnose the CAN bus line. (trouble symptom check) 
    CAUTION: Strictly observe the specified wiring harness repair procedure. For details refer to TEST EQUIPMENT  .
    CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
    1. Connect scan tool MB991958 to the data link connector.
    2. Turn the ignition switch to the "ON" position.
      Fig 103: Connecting Scan Tool To Data Link Connector
      G08297064Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Diagnose CAN bus lines, and check if the scan tool MB991958 screen is as shown in the illustration.

    OK: The display of the scan tool MB991958 is as shown in the illustration. 

    Q: Does scan tool MB991958 screen correspond to the illustration? 

    1. YES:  The trouble can be an intermittent malfunction (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTIONS ).
    2. NO:  Check the ETACS-ECU connector C-301, and repair if necessary. If the ETACS-ECU connector is in good condition, replace the ETACS-ECU.
      Fig 104: Scan Tool Screen Display - Diagnose CAN Bus Lines (Except Ralliart)
      G07030753Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
      Fig 105: Scan Tool Screen Display - Diagnose CAN Bus Lines (Ralliart)
      G07030754Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
scientia non olet · About LEMON Manuals