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Home >> Mitsubishi >> 2009 >> Eclipse GT, Standard >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Controller Area Network (Can) >> Diagnosis >> Can Bus Diagnostics >> Diagnostic Item 16: Diagnose When The Scan Tool Cannot Receive The Data Sent By The ECM < M/T > Or The Pcm < A/T >, And Abs-Ecu < Vehicles Without TCL Or ASC > Or Abs/TCL-Ecu < Vehicles With TCL > Or TCL/ASC-Ecu < Vehicles With ASC >, And Convertible Top Control Module < Eclipse SPYDER > >> Diagnosis
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Diagnostic Item 16: Diagnose When The Scan Tool Cannot Receive The Data Sent By The ECM < M/T > Or The Pcm < A/T >, And Abs-Ecu < Vehicles Without TCL Or ASC > Or Abs/TCL-Ecu < Vehicles With TCL > Or TCL/ASC-Ecu < Vehicles With ASC >, And Convertible Top Control Module < Eclipse SPYDER >: Diagnosis

Required Special Tools: 

  1. STEP 1. Check joint connector (3) C-03, convertible top control module connector D-45 and ABS-ECU connector A-02 < vehicles without TCL or ASC > or ABS/TCL-ECU connector A-03 < vehicles with TCL > or TCL/ASC-ECU connector A-38 < vehicles with ASC > for loose, corroded or damaged terminals, or terminals pushed back in the connector. 
    CAUTION: The strand end of the twisted wire should be within 10 cm (4.0 inches) from the connector. For details refer to SERVICE PRECAUTIONS  .

    Q: Are joint connector (3) C-03, convertible top control module connector D-45 and ABS-ECU connector A-02 < vehicles without TCL or ASC > or ABS/TCL-ECU connector A-03 < vehicles with TCL > or TCL/ASC-ECU connector A-38 < vehicles with ASC > in good condition? 

    YES :  Go to Step 2.

    NO :  Repair the damaged parts. Replace the joint connector as necessary.

    Fig 1: Identifying Connectors A-02, A-03, A-38
    G05892367Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    Fig 2: Identifying Joint Connector C-03
    G05107701Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    Fig 3: Identifying Control Module Connector D-45
    G05107801Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  2. STEP 2. Check the CAN bus lines between intermediate connector C-23 and joint connector (3). Measure the resistance between intermediate connector C-23 and joint connector (3) C-03. 
    CAUTION:
    1. Turn the ignition switch to the "LOCK" (OFF) position.
      CAUTION: Disconnect the negative battery terminal. For details refer to SERVICE PRECAUTIONS  .
    2. Disconnect the negative battery terminal.
    3. Disconnect intermediate connector C-23 and joint connector (3) C-03, and measure the resistance between the wiring harness side connector of joint connector (3) C-03 and the female side connector of intermediate connector C-23 (at instrument panel wiring harness side).
      Fig 4: Identifying Joint Connector C-03 And Intermediate Connector C-23
      G05107975Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Measure the resistance between intermediate connector C-23 (terminal 22) and joint connector (3) C-03 (terminal 9).

      OK: 2 ohms or less 

      Fig 5: Measuring Resistance Between Intermediate Connector C-23 Terminal 22 And Joint Connector C-03 Terminal 9
      G05107976Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    5. Measure the resistance between intermediate connector C-23 (terminal 23) and joint connector (3) C-03 (terminal 20).

      OK: 2 ohms or less 

      CAUTION: Strictly observe the specified wiring harness repair procedure. For details refer to PRECAUTIONS ON HOW TO REPAIR THE CAN BUS LINES  .

      Q: Do all the resistances measure 2 ohms or less? 

      YES :  Go to Step 3.

      NO :  Repair the wiring harness between intermediate connector C-23 and the joint connector (3) C-03.

      Fig 6: Measuring Resistance Between Intermediate Connector C-23 Terminal 23 And Joint Connector C-03 Terminal 20
      G05107977Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  3. STEP 3. Check the CAN bus lines between intermediate connector C-23 and the convertible top control module connector D-45. Measure the resistance between intermediate connector C-23 and convertible top control module connector D-45. 
    CAUTION:
    1. Turn the ignition switch to the "LOCK" (OFF) position.
      CAUTION: Disconnect the negative battery terminal. For details refer to SERVICE PRECAUTIONS  .
    2. Disconnect the negative battery terminal.
    3. Disconnect intermediate connector C-23 and convertible top control module connector D-45, and measure the resistance between the wiring harness side connector of convertible top control module connector D-45 and the male side connector of intermediate connector C-23 (at floor wiring harness side).
      Fig 7: Identifying Intermediate Connector C-23
      G05107736Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
      Fig 8: Identifying Control Module Connector D-45
      G05107801Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Measure the resistance between intermediate connector C-23 (terminal 22) and convertible top control module connector D-45 (terminal 48).

      OK: 2 ohms or less 

      Fig 9: Measuring Resistance Between Intermediate Connector C-23 Terminal 22 And Convertible Top Control Module Connector D-45 Terminal 48
      G05892698Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    5. Measure the resistance between intermediate connector C-23 (terminal 23) and convertible top control module connector D-45 (terminal 49).

      OK: 2 ohms or less 

      Q: Do all the resistances measure 2 ohms or less? 

      YES :  Go to Step 4.

      NO :  Repair the wiring harness between intermediate connector C-23 and the convertible top control module connector D-45.

      Fig 10: Measuring Resistance Between Intermediate Connector C-23 Terminal 23 And Convertible Top Control Module Connector D-45 Terminal 49
      G05892699Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  4. STEP 4. Check the CAN bus lines inside the convertible top control module. Measure the resistance at convertible top control module connector D-45. 
    1. Disconnect convertible top control module connector D-45, and measure the resistance at the component side of convertible top control module connector D-45.
      Fig 11: Identifying Control Module Connector D-45
      G05107801Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    2. Measure the resistance between convertible top control module connector D-45 (terminals 48 and 37).

      OK: 2 ohms or less 

      Fig 12: Measuring Resistance Between Convertible Top Control Module Connector D-45 Terminals 48 And 37
      G05107865Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Measure the resistance between convertible top control module connector D-45 (terminals 49 and 38).

      OK: 2 ohms or less 

      Q: Do all the resistances measure 2 ohms or less? 

      YES :  Intermittent malfunction.

      NO :  Replace the convertible top control module.

      Fig 13: Measuring Resistance Between Convertible Top Control Module Connector D-45 Terminals 49 And 38
      G05107866Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  5. STEP 5. Check the CAN bus lines between intermediate connector C-26 and convertible top control module connector D-45. Measure the resistance between intermediate connector C-26 and convertible top control module connector D-45. 
    CAUTION:
    1. Turn the ignition switch to the "LOCK" (OFF) position.
      CAUTION: Disconnect the negative battery terminal. For details refer to SERVICE PRECAUTIONS  .
    2. Disconnect the negative battery terminal.
    3. Disconnect intermediate connector C-26 and convertible top control module connector D-45, and measure the resistance between the wiring harness side connector of convertible top control module connector D-45 and the male side connector of intermediate connector C-26 (at floor wiring harness side).
      Fig 14: Identifying Intermediate Connector C-26
      G05107729Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
      Fig 15: Identifying Control Module Connector D-45
      G05107801Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Measure the resistance between intermediate connector C-26 (terminal 15) and convertible top control module connector D-45 (terminal 37).

      OK: 2 ohms or less 

      Fig 16: Measuring Resistance Between Intermediate Connector C-26 Terminal 15 And Convertible Top Control Module Connector D-45 Terminal 37
      G05892641Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    5. Measure the resistance between intermediate connector C-26 (terminal 16) and convertible top control module connector D-45 (terminal 38).

      OK: 2 ohms or less 

      CAUTION: Strictly observe the specified wiring harness repair procedure. For details refer to PRECAUTIONS ON HOW TO REPAIR THE CAN BUS LINES  .

      Q: Do all the resistances measure 2 ohms or less? 

      YES :  Go to Step 6.

      NO :  Repair the wiring harness between intermediate connector C-26 and the convertible top control module connector D-45.

      Fig 17: Measuring Resistance Between Intermediate Connector C-26 Terminal 16 And Convertible Top Control Module Connector D-45 Terminal 38
      G05892642Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  6. STEP 6. Check the CAN bus lines between intermediate connector C-26 and ABS-ECU connector A-02 < vehicles without TCL or ASC > or ABS/TCL-ECU connector A-03 < vehicles with TCL > or TCL/ASC-ECU connector A-38 < vehicles with ASC >. Measure the resistance between intermediate connector C-26 and ABS-ECU connector A-02 < vehicles without TCL or ASC > or ABS/TCL-ECU connector A-03 < vehicles with TCL > or TCL/ASC-ECU connector A-38 < vehicles with ASC >. 
    CAUTION:
    1. Turn the ignition switch to the "LOCK" (OFF) position.
      CAUTION: Disconnect the negative battery terminal. For details refer to SERVICE PRECAUTIONS  .
    2. Disconnect the negative battery terminal.
    3. Disconnect intermediate connector C-26 and ABS-ECU connector A-02 < vehicles without TCL or ASC > or ABS/TCL-ECU connector A-03 < vehicles with TCL > or TCL/ASC-ECU connector A-38 < vehicles with ASC >, and measure the resistance between the wiring harness side connector of ABS-ECU connector A-02 < vehicles without TCL or ASC > or ABS/TCL-ECU connector A-03 < vehicles with TCL > or TCL/ASC-ECU connector A-38 < vehicles with ASC > and the female side connector of intermediate connector C-26 (at front wiring harness side).
      Fig 18: Identifying Connectors A-02, A-03, A-38
      G05892367Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
      Fig 19: Identifying Intermediate Connector C-26
      G05107729Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
      Fig 20: Measuring Resistance Between Wiring Harness Side Connector Of ABS-ECU Connector A-02 And Female Side Connector Of Intermediate Connector C-26
      G05892645Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
      Fig 21: Measuring Resistance Between ABS/TCL-ECU Connector A-03 And Female Side Connector Of Intermediate Connector C-26
      G05892647Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Measure the resistance between intermediate connector C-26 (terminal 15) and ABS-ECU connector A-02 < vehicles without TCL or ASC > (terminal 2) or ABS/TCL-ECU connector A-03 < vehicles with TCL > (terminal 27) or TCL/ASC-ECU connector A-38 < vehicles with ASC > (terminal 27).

      OK: 2 ohms or less 

      Fig 22: Measuring Resistance Between Intermediate Connector C-26 Terminal 15 And TCL/ASC-ECU Connector A-38 Terminal 27
      G05892649Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
      Fig 23: Measuring Resistance Between Intermediate Connector C-26 Terminal 15 And ABS-ECU Connector A-02 Terminal 2
      G05892646Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
      Fig 24: Measuring Resistance Between Intermediate Connector C-26 Terminal 15 And ABS/TCL-ECU Connector A-03 Terminal 27
      G05892648Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    5. Measure the resistance between intermediate connector C-26 (terminal 16) and ABS-ECU connector A-02 < vehicles without TCL or ASC > (terminal 8) or ABS/TCL-ECU connector A-03 < vehicles with TCL > (terminal 13) or TCL/ASC-ECU connector A-38 < vehicles with ASC > (terminal 13).

      OK: 2 ohms or less 

      Q: Do all the resistances measure 2 ohms or less? 

      YES :  Go to Step 7.

      NO :  Repair the wiring harness between intermediate connector C-26 and the ABS-ECU connector A-02 < vehicles without TCL or ASC > or ABS/TCL-ECU connector A-03 < vehicles with TCL > or TCL/ASC-ECU connector A-38 < vehicles with ASC >.

      Fig 25: Measuring Resistance Between Intermediate Connector C-26 Terminal 16 And TCL/ASC-ECU Connector A-38 Terminal 13
      G05892650Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  7. STEP 7. Check the CAN bus lines inside the ABS-ECU < vehicles without TCL or ASC > or ABS/TCL-ECU < vehicles with TCL > or TCL/ASC-ECU < vehicles with ASC >. Measure the resistance at ABS-ECU connector A-02 < vehicles without TCL or ASC > or ABS/TCL-ECU connector A-03 < vehicles with TCL > or TCL/ASC-ECU connector A-38 < vehicles with ASC >. 
    1. Disconnect ABS-ECU connector A-02 < vehicles without TCL or ASC > or ABS/TCL-ECU A-03 < vehicles with TCL > or TCL/ASC-ECU A-38 < vehicles with ASC >, and measure the resistance at the component side of ABS-ECU connector A-02 < vehicles without TCL or ASC > or ABS/TCL-ECU A-03 < vehicles with TCL > or TCL/ASC-ECU A-38 < vehicles with ASC >.
      Fig 26: Identifying Connectors A-02, A-03, A-38
      G05892367Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    2. Measure the resistance between ABS-ECU < vehicles without TCL or ASC > connector A-02 (terminals 2 and 4).

      OK: 2 ohms or less 

      Fig 27: Measuring Resistance Between ABS-ECU Connector A-02 Terminals 2 And 4
      G05107965Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Measure the resistance between ABS-ECU < vehicles without TCL or ASC > connector A-02 (terminals 8 and 6).

      OK: 2 ohms or less 

      Fig 28: Measuring Resistance Between ABS-ECU Connector A-02 Terminals 8 And 6
      G05107966Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    4. Measure the resistance between ABS/TCL-ECU < vehicles with TCL > connector A-03 (terminals 11 and 27).

      OK: 2 ohms or less 

      Fig 29: Measuring Resistance Between ABS/TCL-ECU Connector A-03 Terminals 11 And 27
      G05107967Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    5. Measure the resistance between ABS/TCL-ECU < vehicles with TCL > connector A-03 (terminals 13 and 15).

      OK: 2 ohms or less 

      Fig 30: Measuring Resistance Between ABS/TCL-ECU Connector A-03 Terminals 13 And 15
      G05107968Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    6. Measure the resistance between TCL/ASC-ECU < vehicles with ASC > connector A-38 (terminals 11 and 27).

      OK: 2 ohms or less 

      Fig 31: Measuring Resistance Between TCL/ASC-ECU Connector A-38 Terminals 11 And 27
      G05892607Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    7. Measure the resistance between TCL/ASC-ECU < vehicles with ASC > connector A-38 (terminals 13 and 15).

      OK: 2 ohms or less 

      Q: Do all the resistances measure 2 ohms or less? 

      YES :  Go to Step 8.

      NO :  Replace the ABS-ECU < vehicles without TCL or ASC > or ABS/TCL-ECU < vehicles with TCL > or TCL/ASC-ECU < vehicles with ASC >.

      Fig 32: Measuring Resistance Between TCL/ASC-ECU Connector A-38 Terminals 13 And 15
      G05892608Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  8. STEP 8. Check the terminator resistor inside the ECM < M/T > or PCM < A/T >. Measure the resistance at ECM < M/T > or PCM < A/T > connector B-18. 
    1. Disconnect ECM < M/T > or PCM < A/T > connector B-18, and measure the resistance at the component side of ECM < M/T > or PCM < A/T > connector B-18.
      Fig 33: Identifying Air Cleaner Connector Terminals
      G04240131Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
      Fig 34: Identifying Air Cleaner Connector Terminals
      G04240132Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    2. Measure the resistance between ECM < M/T > or PCM < A/T > connector terminals 17 and 18.

      OK: 120 ± 20 ohms 

      Q: Does the resistance measure 120 ± 20 ohms? 

      YES :  Intermittent malfunction.

      NO :  Replace the ECM < M/T > or PCM < A/T >. When the ECM < M/T > or PCM < A/T > is replaced, register the encrypted code. Refer to ENCRYPTED CODE REGISTRATION CRITERIA TABLE .

      Fig 35: Measuring Resistance Between ECM Or PCM Connector Terminals 17 And 18
      G05107852Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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