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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 >> Abs Warning Lamp >> Diagnosis Procedure >> Diagnostic Test

Diagnostic Test

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

    Perform the trouble diagnosis for 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 2  .

    NO 

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

  2. PERFORM SELF-DIAGNOSIS

    With CONSULT

    1. Turn the ignition switch OFF → ON.
      CAUTION:
      • Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
      • Start the engine.
    2. Repeat step 1 two or more times.
    3. Perform self-diagnosis for "ABS".

    Is any DTC detected?

    YES 

    Check the DTC. Refer to DTC INDEX .

    NO 

    GO TO STEP 3  .

  3. CHECK ABS WARNING LAMP SIGNAL

    With CONSULT

    1. Select "ABS", "DATA MONITOR" and "ABS WARN LAMP" according to this order.
    2. Turn the ignition switch OFF.
    3. Check that data monitor displays "On" for 1 second after ignition switch is turned ON and then changes to "Off".
      CAUTION:

      Never start the engine.

    Is the inspection result normal?

    YES 

    Replace the combination meter. Refer to REMOVAL AND INSTALLATION .

    NO 

    Replace the ABS actuator and electric unit (control unit). Refer to REMOVAL AND INSTALLATION .