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Home >> Infiniti >> 2017 >> Q50 Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 195 (Brake Control System (With VDC) (Diagnostic Trouble Codes (DTCS) C1113-U110D And Circuit Diagnosis) (Hybrid)) >> DTC / Circuit Diagnosis >> Parking Brake Switch >> Diagnosis Procedure >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2016 Infiniti Q50. However, it is still accessible from the selected car via links, so may be relevant.

  1. CHECK PARKING BRAKE SWITCH CIRCUIT

    1. Turn the ignition switch OFF.
    2. Disconnect parking brake switch harness connector.
    3. Disconnect combination meter harness connector.
    4. Check the continuity between parking brake switch harness connector and combination meter harness connector.
      Parking brake switch Combination meter Continuity
      Connector Terminal Connector Terminal
      E60 1 M57 26 Existed
    5. Check the continuity between parking brake switch harness connector and ground.
      Parking brake switch - Continuity
      Connector Terminal
      E60 1 Ground Not existed

    Is the inspection result normal?

    YES 

    GO TO STEP 2  .

    NO 

    Repair / replace harness, connector, or terminal.

  2. CHECK PARKING BRAKE SWITCH

    Check the parking brake switch. Refer to COMPONENT INSPECTION .

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Replace the parking brake switch. Refer to REMOVAL AND INSTALLATION .

  3. CHECK PARKING BRAKE SWITCH SIGNAL

    G-20 With CONSULT

    1. Connect parking brake switch harness connector.
    2. Connect combination meter harness connector.
    3. Select "ABS", "DATA MONITOR" and "PARK BRAKE SW" according to this order. Check the parking brake switch signal.
      Condition DATA MONITOR
      Operate parking brake On
      Release the parking brake Off

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    GO TO STEP 4  .

  4. CHECK COMBINATION METER

    Check the combination meter. Refer to CONSULT FUNCTION .

    Is the inspection result normal?

    YES 

    GO TO STEP 5  .

    NO 

    Repair or replace combination meter. Refer to REMOVAL AND INSTALLATION .

  5. CHECK TERMINAL

    1. Check the combination meter pin terminals for damage or loose connection with harness connector.
    2. Check the parking brake switch pin terminals for damage or loose connection with harness connector.

    Is the inspection result normal?

    YES 

    Replace the ABS actuator and electric unit (control unit). Refer to REMOVAL AND INSTALLATION .

    NO 

    Repair / replace harness, connector, or terminal.

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