Toyota Camry owners & service manuals

Toyota Camry (XV70): 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 BRAKE WARNING LIGHT

(a) 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.

NG

GO TO BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS

OK

2.

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

(a) Disconnect the K2 radio and display receiver assembly connector.

(b) Disconnect the A34 skid control ECU (brake actuator assembly) connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

K2-20 (PKB) - A34-33 (PKB)

Always

Below 1 Ω

K2-20 (PKB) or A34-33 (PKB) - Body ground

Always

10 kΩ or higher

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

    READ NEXT:

     Speaker Circuit

    DESCRIPTION If there is a short in a speaker circuit, the stereo component amplifier assembly detects it and stops output to the speakers. Thus sound cannot be heard from the speakers even if there

     Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier

    DESCRIPTION The radio and display receiver assembly sends a sound signal to the stereo component amplifier assembly via this circuit. The sound signal that is sent is amplified by the stereo compone

     Data Signal Circuit between Radio Receiver and Stereo Jack Adapter

    DESCRIPTION The No. 1 stereo jack adapter assembly sends the sound data signal or image data signal from a USB device to the radio and display receiver assembly via this circuit. WIRING DIAGRAM PRO

    SEE MORE:

     Replacement

    REPLACEMENT CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during automatic transaxle fluid replacement are shown below. Necessary Procedures After Parts Removed/I

     ECM Communication (C124A00)

    DESCRIPTION If the vehicle information stored by the skid control ECU (brake actuator assembly) does not match that sent from the ECM or a new skid control ECU (brake actuator assembly) is installed and the vehicle information has not been stored, this DTC is stored. DTC No. Detection Item

    © 2023-2024 Copyright www.tocamry.com