Toyota CH-R Service Manual: Parking Brake Switch Circuit

Toyota CH-R Service Manual / Navigation / Multi Info Display / Navigation System / Parking Brake Switch Circuit

DESCRIPTION

This circuit is from the skid control ECU (brake actuator assembly) to the radio and display receiver assembly.

WIRING DIAGRAM

PROCEDURE

1.	CHECK ELECTRIC PARKING BRAKE SYSTEM

(a) Check the operation of the electric parking brake.

GO TO ELECTRIC PARKING BRAKE SYSTEM

2.	CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) - RADIO AND DISPLAY RECEIVER ASSEMBLY)

(a) Disconnect the F131 radio and display receiver assembly connector.

(b) Disconnect the A42 skid control ECU (brake actuator assembly) connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
F131-20 (PKB) - A42-33 (PKB)	Always	Below 1 Ω
F131-20 (PKB) or A42-33 (PKB) - Body ground	Always	10 kΩ or higher

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR

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