NAVIGATION SYSTEM(for DVD) Parking Brake Switch Circuit

DTC Code DTC Name
Parking Brake Switch Circuit

DESCRIPTION

This circuit includes the parking brake switch and the display and navigation module display.

WIRING DIAGRAM

E250968E02

PROCEDURE

  1. CHECK PARKING BRAKE SWITCH ASSEMBLY (DISPLAY CHECK MODE)

    1. E250969

      Enter the "Display Check" mode and select "Vehicle Signal Check".

      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

      Tip:

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

      Result

      Result

      OK

      NG

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    NG
  2. CHECK HARNESS AND CONNECTOR (DISPLAY AND NAVIGATION MODULE DISPLAY - PARKING BRAKE SWITCH)

    1. Disconnect the H4 display and navigation module display connector.

    2. Disconnect the A39 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

      H4-17 (PKB) - A39-1

      Always

      Below 1 Ω

      H4-17 (PKB) - Body ground

      Always

      10 kΩ or higher

      Result

      Result

      OK

      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK
  3. INSPECT PARKING BRAKE SWITCH ASSEMBLY

    1. C159029C02

      *a

      Released

      *b

      Pushed in

      Remove the parking brake switch assembly.

      Click here

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      1 - Switch body

      Parking brake switch on (Switch pin released)

      Below 1 Ω

      Parking brake switch off (Switch pin pushed in)

      10 kΩ or higher

      Result

      Result

      OK

      NG

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    NG

    REPLACE PARKING BRAKE SWITCH ASSEMBLY