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INSPECTION PROCEDURE 5: Combination meter does not work.: Diagnosis

Required Special Tools: 

  1. STEP 1. Check combination meter connector C-01 for loose, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Is combination meter connector C-01 in good condition? 

    1. YES :  Go to Step 2.
    2. NO :  Repair or replace the damaged component(s). Refer to HARNESS CONNECTOR INSPECTION . If the functions, which are described in "CIRCUIT OPERATION", work normally, the input signal from the ignition switch (IG1) should be normal.
    Fig 1: Identifying Combination Meter Connector C-01 Terminal
    G02399168Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  2. STEP 2. Check the battery power supply circuit to the combination meter. Measure the voltage at combination meter connector C-01. 
    1. Disconnect combination meter connector C-01 and measure the voltage available at the wiring harness side of the connector.
      Fig 2: Identifying Combination Meter Connector C-01 Terminal
      G02399169Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    2. Measure the voltage between terminal 7 and ground.
      • The voltage should equal approximately 12 volts (battery positive voltage).
      Fig 3: Measuring Voltage Between Terminal 7 And Ground
      G02399170Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

    Q: Is the measured voltage approximately 12 volts (battery positive voltage)? 

    1. YES :  Go to  Step 4.
    2. NO :  Go to Step 3.
  3. STEP 3. Check the wiring harness between combination meter connector C-01 (terminal 7) and battery. 
    Fig 4: Identifying Connector C-01, C-05 And C-129 Terminal
    G02399171Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    NOTE: Also check intermediate connector C-129 and joint connector C-05 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connector C-129 or joint connector C-05 is damaged, repair or replace the connector as described in HARNESS CONNECTOR INSPECTION

    Q: Is the wiring harness between combination meter connector C-01 (terminal 7) and battery in good condition? 

    1. YES :  There is no action to be taken.
    2. NO :  Repair the wiring harness. Check to see that all meters operate.
  4. STEP 4. Check the ignition switch (IG1) circuit to the combination meter. Measure the voltage at combination meter connector C-01. 
    1. Disconnect combination meter connector C-01 and measure the voltage available at the wiring harness side of the connector.
    2. Turn the ignition switch to the "ON" position.
      Fig 5: Identifying Combination Meter Connector C-01 Terminal
      G02399172Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Measure the voltage between terminal 9 and ground.
      • The voltage should equal approximately 12 volts (battery positive voltage).
      Fig 6: Measuring Voltage Between Terminal 9 And Ground
      G02399173Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

    Q: Is the measured voltage approximately 12 volts (battery positive voltage)? 

    1. YES :  Go to  Step 6.
    2. NO :  Go to Step 5.
  5. STEP 5. Check the wiring harness between combination meter connector C-01 (terminal 9) and ignition switch (IG1). 
    Fig 7: Identifying Combination Meter Connector C-01 Terminal
    G02399174Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    NOTE: Also check junction block connector C-211 and C-214 and joint connector C-23 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If junction block connector C-211 or C-214 or joint connector C-23 is damaged, repair or replace the connector as described in HARNESS CONNECTOR INSPECTION

    Q: Is the wiring harness between combination meter connector C-01 (terminal 9) and ignition switch (IG1) in good condition? 

    1. YES :  There is no action to be taken.
    2. NO :  Repair the wiring harness. Check to see that all meters operate.
    Fig 8: Identifying Connector C-01 And C-23 Terminal
    G02399175Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  6. STEP 6. Check the ground circuit to the combination meter. Measure the resistance at combination meter connector C-01. 
    1. Disconnect combination meter connector C-01 and measure the resistance available at the wiring harness side of the connector.
      Fig 9: Identifying Combination Meter Connector C-01 Terminal
      G02399176Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    2. Measure the resistance value between terminal 1 and ground.
      • The resistance should equal 2 ohms or less.

    Q: Is the measured resistance 2 ohms or less? 

    1. YES :  Repair or replace the combination meter. Check to see that all meters operate.
    2. NO :  Go to Step 7.
    Fig 10: Measuring Resistance Value Between Terminal 1 And Ground
    G02399177Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  7. STEP 7. Check the wiring harness between combination meter connector C-01 (terminals 1 and 2) and ground. 

    Q: Are the wiring harness between combination meter connector C-01 (terminals 1 and 2) and ground in good condition? 

    1. YES :  There is no action to be taken.
    2. NO :  Repair the wiring harness. Check to see that all meters operate.
    Fig 11: Identifying Combination Meter Connector C-01 Terminal
    G02399178Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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