Parking Brake Switch Circuit

NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: Parking Brake Switch Circuit

Parking Brake Switch Circuit

DESCRIPTION

This circuit is from the parking brake switch assembly to the navigation receiver assembly.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK BRAKE WARNING SWITCH
(a) Check that the brake warning switch lights come on when the parking brake is applied and goes off when it is released.
OK:
The brake warning lights operate as specified above.
OK -- CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER - PARKING BRAKE SWITCH)

NG -- Continue to next step.

2. INSPECT PARKING BRAKE SWITCH ASSEMBLY





(a) Disconnect the A5 parking brake switch assembly connector.
(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





(c) Reconnect the parking brake switch assembly connector.

NG -- REPLACE PARKING BRAKE SWITCH ASSEMBLY
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER - PARKING BRAKE SWITCH)





(a) Disconnect the I6 navigation receiver assembly connector.
(b) Disconnect the A5 parking brake switch assembly connector.
(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





(d) Reconnect the navigation receiver assembly connector.
(e) Reconnect the parking brake switch assembly connector.

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