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Home >> Nissan-Datsun >> 2017 >> Quest SL >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (3 Of 3) >> DTC / Circuit Diagnosis >> DTC P1572: Brake Pedal Position Switch >> Component Function Check >> Diagnostic Test
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Diagnostic Test

  1. PERFORM COMPONENT FUNCTION CHECK

    1. Turn ignition switch ON.
    2. Check the voltage between ECM harness connectors.
      ECM Condition Voltage
      Connector + -
      Terminal Terminal
      E19 140
      (Brake pedal position switch signal)      		 152 Brake pedal Slightly depressed Approx. 0 V
      Fully released Battery voltage

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    GO TO STEP 2  .

  2. PERFORM COMPONENT FUNCTION CHECK-II

    Check the voltage between ECM harness connectors.

    ECM Condition Voltage
    Connector + -
    Terminal Terminal
    E19 139
    (Stop lamp switch signal)    		 152 Brake pedal Slightly depressed Battery voltage
    Fully released Approx. 0 V

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    Go to DIAGNOSIS PROCEDURE .

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