Parking Brake Switch Circuit

DESCRIPTION

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

WIRING DIAGRAM

INSPECTION 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.
   

OK	Go to step 3

NG

2. INSPECT PARKING BRAKE SWITCH

1. Remove the parking brake switch.

2. Measure the resistance according to the value(s) in the table below.

   Standard resistance:

   Tester connection	Condition	Specified condition
   Switch connector - Switch body	ON (When shaft is not pressed)	Below 1 Ω
   Switch connector - Switch body	OFF (When shaft is pressed)	10 kΩ or higher

NG	REPLACE PARKING BRAKE SWITCH

OK

3. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY - PARKING BRAKE SWITCH)

1. Disconnect the multi-display connector J50 and parking brake switch connector A25 or J88.

2. Measure the resistance according to the value(s) in the table below.

   Standard resistance:

   Tester connection	Condition	Specified condition
   PKB - A25-1 (A/T)	Always	Below 1 Ω
   PKB - J88-1 (M/T)	Always	Below 1 Ω
   PKB - Body ground	Always	10 kΩ or higher

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE