NAVIGATION SYSTEM (for Built-in Memory) Parking Brake Switch Circuit

DESCRIPTION

This circuit includes the parking brake switch assembly and navigation receiver assembly.

WIRING DIAGRAM

A01DTUME06

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK VEHICLE SIGNAL (OPERATION CHECK)


    1. A01DPZI

      Display the "Vehicle Signal Check Mode" screen Click here.

    2. Check that the display changes between ON and OFF according to the parking brake operation.

      OK
      Parking Brake Condition Display
      Applied ON
      Released OFF

      Tech Tips

      This display is updated once per second. As a result, it is normal for the display to lag behind the actual parking brake operation.


    NG

    CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - PARKING BRAKE SWITCH ASSEMBLY) Click here

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

  2. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - PARKING BRAKE SWITCH ASSEMBLY)


    1. Disconnect the H62 navigation receiver assembly connector.

    2. Disconnect the G77 parking brake switch assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H62-6 (PKB) - G77-1 Always Below 1 Ω
      H62-6 (PKB) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT PARKING BRAKE SWITCH ASSEMBLY


    1. Remove the parking brake switch assembly Click here.

    2. Inspect the parking brake switch assembly Click here.


    NG

    REPLACE PARKING BRAKE SWITCH ASSEMBLY Click here

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here