NAVIGATION SYSTEM(except Sedan) Parking Brake Switch Circuit

DTC Code DTC Name
Parking Brake Switch Circuit

DESCRIPTION

This circuit is from the parking brake switch assembly to the radio and display receiver assembly.

WIRING DIAGRAM

E226166E71

PROCEDURE

  1. CHECK BRAKE WARNING LIGHT

    1. Check that the brake warning light comes on when the parking brake is applied and goes off when it is released.

      OK

      The brake warning light operates as specified above.

    Result

    Proceed to

    OK

    NG
    NG

    GO TO BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS

    for Anti-lock Brake System (for ADVICS Made):Click here

    for Anti-lock Brake System (for BOSCH Made):Click here

    for Vehicle Stability Control System:Click here

    OK

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

    1. Disconnect the E90 radio and display receiver assembly connector.

    2. Disconnect the L18 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

      E90-6 (PKB) - L18-1

      Always

      Below 1 Ω

      E90-6 (PKB) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR