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Home >> Infiniti >> 2012 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1550 To P2A03 >> DTC P1572: ASCD Brake Switch >> Component Inspection (Stop Lamp Switch)

Component Inspection (Stop Lamp Switch)

  1. CHECK STOP LAMP SWITCH-I
    1. Turn ignition switch OFF.
    2. Disconnect stop lamp switch harness connector.
    3. Check the continuity between stop lamp switch terminals under the following conditions.
    Terminals Condition Continuity
    1 and 2 Brake pedal Fully released Not existed
    Slightly depressed Existed

    Is the inspection result normal? 

    YES: INSPECTION END

    NO: GO TO 2.

  2. CHECK STOP LAMP SWITCH-I
    1. Adjust stop lamp switch installation. Refer to "INSPECTION AND ADJUSTMENT ".
    2. Check the continuity between stop lamp switch terminals under the following conditions.
    Terminals Condition Continuity
    1 and 2 Brake pedal Fully released Not existed
    Slightly depressed Existed

    Is the inspection result normal? 

    YES: INSPECTION END

    NO: Replace stop lamp switch. Refer to "REMOVAL AND INSTALLATION ".