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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 36 (Brake Control System (W/ Intelligent Cruise Control) (2 Of 2)) >> DTC/Circuit Diagnosis >> Brake Warning Lamp >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  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 2 .

    NO

    Repair or replace error-detected parts.

  2. PERFORM THE SELF DIAGNOSTIC RESULT 

    SYMBOL CONSULT

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

    Is any DTC detected?

    YES

    Check the DTC. Refer to DTC Index .

    NO

    GO TO 3 .

  3. CHECK BRAKE WARNING LAMP SIGNAL 

    SYMBOL CONSULT

    1. Select "ABS", "Data Monitor" and "EBD WARN LAMP" in 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 .