NAVIGATION SYSTEM Parking Brake Switch Circuit

DESCRIPTION

This circuit is from the parking brake switch assembly to the multi-media module receiver assembly.

WIRING DIAGRAM

B001WVCE02
*a Parking Brake Switch Assembly
*b Multi-media Module Receiver Assembly

PROCEDURE


  1. CHECK VEHICLE SIGNAL (OPERATION CHECK)


    1. B001YHPE01

      Enter the "Function Check/Setting I" mode and select "Vehicle Signal" Click here.

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

      OK
      Parking Brake Position 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 change in the switch.


    OK

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

    NG

  2. CHECK HARNESS AND CONNECTOR (PARKING BRAKE SWITCH ASSEMBLY - MULTI-MEDIA MODULE RECEIVER ASSEMBLY)


    1. Disconnect the E53 parking brake switch assembly connector.

    2. Disconnect the F77 multi-media module receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F77-55 (PKB) - E53-1 Always Below 1 Ω
      F77-55 (PKB) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT PARKING BRAKE SWITCH ASSEMBLY


    1. B001WDY

      Remove the parking brake switch assembly connector Click here.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      1 - Switch body ON (Shaft not pressed) Below 1 Ω
      OFF (Shaft pressed) 10 kΩ or higher
      Text in Illustration
      B001XPG ON
      B001WGT OFF

    OK

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    NG

    REPLACE PARKING BRAKE SWITCH ASSEMBLY Click here