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Home >> Infiniti >> 2017 >> QX70 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (4 Of 4) >> DTC/Circuit Diagnosis >> ASCD Brake Switch >> Component Inspection (ASCD Brake Switch) >> Diagnostic Test
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Diagnostic Test

  1. CHECK ASCD BRAKE SWITCH-I

    1. Turn Ignition Switch OFF.
    2. Disconnect ASCD Brake Switch harness connector.
    3. Check the continuity between ASCD Brake Switch terminals under the following conditions.
      Terminals Condition Continuity
      1 and 2 Brake pedal Fully released Existed
      Slightly depressed Not existed

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    GO TO STEP 2  .

  2. CHECK ASCD BRAKE SWITCH-II

    1. Adjust ASCD Brake Switch installation. Refer to INSPECTION AND ADJUSTMENT .
    2. Check the continuity between ASCD Brake Switch terminals under the following conditions.
      Terminals Condition Continuity
      1 and 2 Brake pedal Fully released Existed
      Slightly depressed Not existed

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    Replace ASCD Brake Switch. Refer to REMOVAL AND INSTALLATION .