NAVIGATION SYSTEM > Parking Brake Switch Circuit

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DESCRIPTION

This is the circuit from the parking brake switch to the multi-display.

WIRING DIAGRAM


E106419E02


INSPECTION PROCEDURE

1.CHECK BRAKE WARNING LIGHT

  1. Check that the brake warning light illuminates when the parking brake pedal is depressed, and goes off when the parking brake pedal is released.

    OK:
    The brake warning light operates as specified above.



OK
Go to step 3
NG


2.INSPECT PARKING BRAKE SWITCH


    E108393E02

  1. Disconnect the A33 switch connector.

  1. Measure the resistance of the wire harness side connector.

    Standard resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    Switch connector - Switch body
    		Pushed
    		Below 1 Ω
    Switch connector - Switch body
    		Not pushed
    		10 kΩ or higher



NG
REPLACE PARKING BRAKE SWITCH
OK


3.CHECK WIRE HARNESS (PARKING BRAKE SWITCH - MULTI-DISPLAY)
E108713E02

  1. Disconnect the L46 multi-display connector.

  1. Disconnect the A33 switch connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    L46-23 (PKB) - A33-1
    		Always
    		Below 1 Ω
    L46-23 (PKB) - Body ground
    		Always
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE