Parking Brake Switch Circuit

LIGHTING: LIGHTING SYSTEM: Parking Brake Switch Circuit

Parking Brake Switch Circuit

DESCRIPTION

The Multiplex network body ECU receives the 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 (Body ECU)





OK:
Normal conditions listed above are displayed.
NG -- INSPECT PARKING BRAKE SWITCH ASSEMBLY
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
2. INSPECT PARKING BRAKE SWITCH ASSEMBLY
(a) Disconnect the parking brake switch connector.
(b) Measure the resistance according to the value(s) in the table below.
Resistance:






NG -- REPLACE PARKING BRAKE SWITCH ASSEMBLY
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - BODY GROUND)
(a) Disconnect the 1C connector from instrument panel junction block assembly.
(b) Measure the resistance according to the value(s) in the table below.





Resistance:






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