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Diagnostic Trouble Code Procedures: Diagnosis

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

Required Special Tools: 

  1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. 
    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.
    3. Diagnose the CAN bus line.
    4. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is the CAN bus line found to be normal? 

    YES:  Go to  Step 3

    NO:  Repair the CAN bus line (Refer to CAN BUS DIAGNOSTICS TABLE ). Then go to Step 2.

    Fig 1: Connecting Scan Tool To Data Link Connector
    G04232541Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  2. STEP 2. Recheck for diagnostic trouble code. 
    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. Turn the ignition switch to the "ON" position.
    2. Erase the DTC.
    3. Turn the ignition switch to the "LOCK" (OFF) position.
    4. Turn the ignition switch to the "ON" position.
    5. Check if the DTC is set.
    6. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is DTC C1200, C1205, C1210 or C1215 set? 

    YES:  Go to Step 3

    NO:  The procedure is complete.

    Fig 2: Connecting Scan Tool To Data Link Connector
    G04232541Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  3. STEP 3. Using scan tool MB991958, check data list. 
    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. Start the engine.
    3. Set scan tool MB991958 to the data reading mode, and check the data list items by driving the vehicle.
      • Item 01 (DTC C1200 is set): Front right wheel speed sensor
      • Item 02 (DTC C1205 is set): Front left wheel speed sensor
      • Item 03 (DTC C1210 is set): Rear right wheel speed sensor
      • Item 04 (DTC C1215 is set): Rear left wheel speed sensor
    4. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Does the speedometer indication match the scan tool indication? 

    YES:  It can be assumed that this malfunction is intermittent. Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION .

    NO:  Go to Step 4.

    Fig 3: Connecting Scan Tool To Data Link Connector
    G04232541Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  4. STEP 4. Measure the voltage at ABS-ECU connector A-02. 
    1. Disconnect the connector A-02, and connect special tool ABS Check Harness (MB991970) to the wiring harness-side connector.
      NOTE: Do not connect special tool ABS Check Harness (MB991970) to the ABS-ECU.
    2. Turn the ignition switch to the "ON" position.
    3. Measure the voltage between the relevant signal and ground terminals in the wheel speed sensor circuit and body ground. It should be less than 1V.
      • DTC C1201 is set: Between signal terminal 9 and body ground, and between ground terminal 10 and body ground
      • DTC C1206 is set: Between signal terminal 26 and body ground, and between ground terminal 16 and body ground
      • DTC C1211 is set: Between signal terminal 11 and body ground, and between ground terminal 17 and body ground
      • DTC C1216 is set: Between signal terminal 28 and body ground, and between ground terminal 27 and body ground

    Q: Does the voltage measure 1 V or less? 

    YES:  Go to Step 5.

    NO (When the voltage between terminal 9 or 10 - and body ground measures more than 1 V)  : Go to  Step 7.

    NO (When the voltage between terminal 26 or 16 - and body ground measures more than 1 V)  : Go to  Step 9.

    NO (When the voltage between terminal 11 or 17 - and body ground measures more than 1 V)  : Go to  Step 11.

    NO (When the voltage between terminal 28 or 27 - and body ground measures more than 1 V)  : Go to  Step 13.

    Fig 4: Measuring Voltage ABS-ECU Connector A-02
    G04255315Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  5. STEP 5. Measure the resistance at ABS-ECU connector A-02. 
    1. Disconnect the connector A-02, and connect special tool ABS Check Harness (MB991970) to the wiring harness-side connector.
      NOTE: Do not connect special tool ABS Check Harness (MB991970) to the ABS-ECU.
    2. Measure the resistance between the relevant signal and ground terminals in the wheel speed sensor circuit and body ground. There should be no continuity.
      • DTC C1201 is set: Between signal terminal 9 and body ground, and between ground terminal 10 and body ground
      • DTC C1206 is set: Between signal terminal 26 and body ground, and between ground terminal 16 and body ground
      • DTC C1211 is set: Between signal terminal 11 and body ground, and between ground terminal 17 and body ground
      • DTC C1216 is set: Between signal terminal 28 and body ground, and between ground terminal 27 and body ground

    Q: Does continuity exist? 

    YES (Continuity exists between terminal 9 or terminal 10 and body ground)  : Go to  Step 7.

    YES (Continuity exists between terminal 26 or terminal 16 and body ground)  : Go to  Step 9.

    YES (Continuity exists between terminal 11 or terminal 17 and body ground)  : Go to  Step 11.

    YES (Continuity exists between terminal 28 or terminal 27 and body ground)  : Go to  Step 13.

    NO:  Go to Step 6.

    Fig 5: Measuring Resistance ABS-ECU Connector A-02
    G04255316Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  6. STEP 6. Measure the resistance at the ABS-ECU connector A-02. 
    1. Disconnect the connector A-02, and connect special tool ABS Check Harness (MB991970) to the wiring harness-side connector.
      NOTE: Do not connect special tool ABS Check Harness (MB991970) to the ABS-ECU.
    2. Measure the resistance between the ABS-ECU connector terminals.
      • DTC C1200 is set: Between terminal 9 and terminal 10
      • DTC C1205 is set: Between terminal 26 and terminal 16
      • DTC C1210 is set: Between terminal 11 and terminal 17
      • DTC C1215 is set: Between terminal 28 and terminal 27

        Standard Value: 1.24 - 1.64 kΩ 

    Q: Is the resistance between terminals 16 and 26, 9 and 10, 27 and 28, or 11 and 17 within the standard value? 

    YES (When resistances between all terminals are within the standard value)  : Go to  Step 16.

    NO (When resistance between terminals 9 and 10 is not within the standard value)  : Go to Step 7.

    NO (When resistance between terminals 16 and 26 is not within the standard value)  : Go to  Step 9.

    NO (When resistance between terminals 11 and 17 is not within the standard value)  : Go to  Step 11.

    NO (When resistance between terminals 27 and 28 is not within the standard value)  : Go to  Step 13.

    Fig 6: Measuring Resistance ABS-ECU Connector A-02
    G04255317Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  7. STEP 7. Check ABS-ECU connector A-02 and wheel speed sensor < front: RH > connector A-01 for loose, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are ABS-ECU connector A-02 and wheel speed sensor < front: RH > connector A-01 damaged? 

    YES:  Repair or replace the damaged component(s). Refer to HARNESS CONNECTOR INSPECTION . Then go to  Step 17.

    NO:  Go to Step 8.

    Fig 7: Identifying Connector A-02 Terminals
    G04255322Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    Fig 8: Identifying Connector A-01
    G04255319Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  8. STEP 8. Check the harness wires between ABS-ECU connector A-02 (terminal 9, 10) and wheel speed sensor < front: RH > connector A-01 (terminal 2, 1). 

    Q: Is the harness wire between ABS-ECU connector A-02 (terminal 9, 10) and wheel speed sensor < front: RH > connector A-01 (terminal 1, 2) damaged? 

    YES:  Repair the wiring harness. Then go to  Step 17.

    NO:  Go to  Step 15.

    Fig 9: Identifying Connector A-02 Terminals
    G04255322Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    Fig 10: Identifying Connector A-01
    G04255321Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  9. STEP 9. Check ABS-ECU connector A-02 and wheel speed sensor < front: LH > connector A-04 for loose, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are ABS-ECU connector A-02 and wheel speed sensor < front: LH > connector A-04 damaged? 

    YES:  Repair or replace the damaged component(s). Refer to HARNESS CONNECTOR INSPECTION . Then go to  Step 17.

    NO:  Go to Step 10.

    Fig 11: Identifying Connector A-02 Terminals
    G04255322Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    Fig 12: Identifying Connector A-04
    G04255323Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  10. STEP 10. Check the harness wires between ABS-ECU connector A-02 (terminal 16, 26) and wheel speed sensor < front: LH > connector A-04 (terminal 1, 2). 

    Q: Is the harness wire between ABS-ECU connector A-02 (terminal 16, 26) and wheel speed sensor < front: LH > connector A-04 (terminal 1, 2) damaged? 

    YES:  Repair the wiring harness. Then go to  Step 17.

    NO:  Go to  Step 15.

    Fig 13: Identifying Connector A-02 Terminals
    G04255322Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    Fig 14: Identifying Connector A-04
    G04255325Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  11. STEP 11. Check ABS-ECU connector A-02, intermediate connector C-25 and wheel speed sensor < rear: RH > connector F-04 for loose, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are ABS-ECU connector A-02, intermediate connector C-25 and wheel speed sensor < rear: RH > connector F-04 damaged? 

    YES:  Repair or replace the damaged component(s). Refer to HARNESS CONNECTOR INSPECTION . Then go to  Step 17.

    NO:  Go to Step 12.

    Fig 15: Identifying Connector A-02 Terminals
    G04255326Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    Fig 16: Identifying Connector C-25
    G04255327Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    Fig 17: Identifying Connector F-04
    G04255328Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  12. STEP 12. Check the harness wires between ABS-ECU connector A-02 (terminal 11, 17) and wheel speed sensor < rear: RH > connector F-04 (terminal 1, 2). 

    Q: Is the harness wire between ABS-ECU connector A-02 (terminal 11, 17) and wheel speed sensor < rear: RH > connector F-04 (terminal 1, 2) damaged? 

    YES:  Repair the wiring harness. Then go to  Step 17.

    NO:  Go to  Step 15.

    Fig 18: Identifying Connector A-02 Terminals
    G04255322Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    Fig 19: Identifying Connector F-04
    G04255330Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  13. STEP 13. Check ABS-ECU connector A-02, intermediate connector C-25 and wheel speed sensor < rear: LH > connector F-07 for loose, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are ABS-ECU connector A-02, intermediate connector C-32 and wheel speed sensor < rear: LH > connector F-07 damaged? 

    YES:  Repair or replace the damaged component(s). Refer to HARNESS CONNECTOR INSPECTION . Then go to  Step 17.

    NO:  Go to Step 14.

    Fig 20: Identifying Connector A-02 Terminals
    G04255322Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    Fig 21: Identifying Connector C-25
    G04255332Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    Fig 22: Identifying Connector F-07
    G04255333Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  14. STEP 14. Check the harness wires between ABS-ECU connector A-02 (terminal 28, 27) and wheel speed sensor < rear: LH > connector F-07 (terminal 1, 2). 

    Q: Is the harness wire between ABS-ECU connector A-02 (terminal 28, 27) and wheel speed sensor < rear: LH > connector F-07 (terminal 1, 2) damaged? 

    YES:  Repair the wiring harness. Then go to  Step 17.

    NO:  Go to Step 15.

    Fig 23: Identifying Connector A-02 Terminals
    G04255322Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    Fig 24: Identifying Connector F-07
    G04255335Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  15. STEP 15. Inspect the wheel speed sensor. 

    Check the wheel speed sensor relevant to the DTC code. For the applicable inspection procedure, refer to << A >> FRONT WHEEL SPEED SENSOR/REAR WHEEL SPEED SENSOR REMOVAL  .

    • When DTC code C1200 is set: Front right wheel speed sensor
    • When DTC code C1205 is set: Front left wheel speed sensor
    • When DTC code C1210 is set: Rear right wheel speed sensor
    • When DTC code C1215 is set: Rear left wheel speed sensor

    Q: Is the wheel speed sensor damaged? 

    YES:  Replace the wheel speed sensor. Then go to  Step 17.

    NO:  Go to  Step 4.

  16. STEP 16. Recheck for diagnostic trouble code. 

    Check again if the DTC is set.

    1. Turn the ignition switch to the "ON" position.
    2. Erase the DTC.
    3. Turn the ignition switch to the "LOCK" (OFF) position.
    4. Turn the ignition switch to the "ON" position.
    5. Check if the DTC is reset.
    6. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is DTC C1200, C1205, C1210 or C1215 set? 

    YES:  Replace the hydraulic unit (integrated with ABS-ECU). Then go to Step 17.

    NO:  It can be assumed that this malfunction is intermittent. Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION .

    Fig 25: Connecting Scan Tool To Data Link Connector
    G04232541Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  17. STEP 17. Recheck for diagnostic trouble code. 
    1. Turn the ignition switch to the "ON" position.
    2. Erase the DTC.
    3. Turn the ignition switch to the "LOCK" (OFF) position.
    4. Turn the ignition switch to the "ON" position.
    5. Check if the DTC is set.
    6. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is DTC C1200, C1205, C1210 or C1215 set? 

    YES:  Repeat the troubleshooting from  Step 1.

    NO:  The procedure is complete.

    Fig 26: Connecting Scan Tool To Data Link Connector
    G04232541Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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