Parking Brake Switch Circuit

LIGHTING: LIGHTING SYSTEM: Parking Brake Switch Circuit

Parking Brake Switch Circuit

DESCRIPTION

The Multiplex network body ECU receives parking brake switch signal.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Body / Data List.
(e) Read the display on the Techstream.

Body





OK:
Normal conditions listed above are displayed.
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
NG -- Continue to next step.
2. INSPECT PARKING BRAKE SWITCH ASSEMBLY
(a) Check that there is resistance between the terminal and the body ground when parking brake switch is operated.
Resistance:
ON (When shaft is pressed): No continuity
10 kOhms or higher
OFF (When shaft is not pressed): Continuity
Below 1 Ohms
NG -- REPLACE PARKING BRAKE SWITCH ASSEMBLY
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR
(a) Disconnect the 1K connector from instrument panel junction block assembly.





(b) Check the resistance between the terminal 1K-10 of the instrument panel junction block assembly connector side and body ground.
:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE