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Home >> Infiniti >> 2015 >> Q50 Base, RWD >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Brake Control System (VDC - Diagnostic Trouble Codes (DTCS) Symptom Tests And Component R&R) (Exc Hybrid) >> DTC/Circuit Diagnosis >> DTC C1130: Engine Signal >> Diagnosis Procedure >> Diagnostic Test

Diagnostic Test

  1. CHECK ENGINE SYSTEM

    With CONSULT

    Perform self-diagnosis for "ENGINE".

    Is any DTC detected?

    YES 

    Check the DTC. Refer to DTC INDEX .

    NO 

    GO TO STEP 2  .

  2. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND CIRCUIT

    Check the ABS actuator and electric unit (control unit) power supply and ground circuit. Refer to DIAGNOSIS PROCEDURE .

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Repair / replace harness, connector, fuse, or fusible link.

  3. CHECK CONNECTOR AND TERMINAL

    1. Turn the ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Disconnect ABS actuator and electric unit (control unit) harness connector.
    4. Check the connector for disconnection or looseness.
    5. Check the pin terminals for damage or loose connection with harness connector.

    Is the inspection result normal?

    YES 

    GO TO STEP 4  .

    NO 

    Repair / replace harness, connector, or terminal, securely lock the connector, and GO TO STEP 4  .

  4. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

    With CONSULT

    1. Connect ECM harness connector.
    2. Connect ABS actuator and electric unit (control unit) harness connector.
    3. Erase self-diagnosis result for "ABS".
    4. Turn the ignition switch OFF → ON.
      CAUTION:
      • Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
      • Start the engine.
    5. Repeat step 4 two or more times.
    6. Perform self-diagnosis for "ABS".

    Is any DTC "C1130" or "U1000"detected?

    YES ("C1130") 

    GO TO STEP 1  .

    YES ("U1000") 

    Refer to TROUBLE DIAGNOSIS FLOW CHART .

    NO 

    INSPECTION END