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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 >> Brake Warning Lamp >> Component Function Check >> Diagnostic Test

Diagnostic Test

  1. CHECK BRAKE WARNING LAMP FUNCTION (1)

    Check that brake warning lamp in combination meter turns ON for 1 second after ignition switch is turned ON.

    CAUTION:

    Never start the engine.

    Is the inspection result normal?

    YES 

    GO TO STEP 2  .

    NO 

    Proceed to DIAGNOSIS PROCEDURE .

  2. CHECK BRAKE WARNING LAMP FUNCTION (2)

    Check that brake warning lamp turns ON/OFF when parking brake is operated.

    NOTE:

    Brake warning lamp turns ON when parking brake is operated (when parking brake switch is ON).

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Check the parking brake switch system. Refer to DIAGNOSIS PROCEDURE .

  3. CHECK BRAKE WARNING LAMP FUNCTION (3)

    Check that brake warning lamp in combination meter turns ON/OFF when brake fluid level switch is operated while brake fluid level in reservoir tank is with the specified level.

    NOTE:

    Brake warning lamp turns ON when brake fluid is less than the specified level (when brake fluid level switch is ON).

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    Check the brake fluid level switch system. Refer to DIAGNOSIS PROCEDURE .

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