Toyota Avalon Service & Repair Manual: Parking Brake Switch Circuit

Toyota Avalon Service & Repair Manual / Audio, Visual, Telematics / Audio / Video / Audio And Visual System(for Gasoline Model) / 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 G2 radio and display receiver assembly connector.

(b) Disconnect the A28 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

G2-20 (PKB) - A28-33 (PKB)

Always

Below 1 Ω

G2-20 (PKB) or A28-33 (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
    Panel Switches do not Function

    Parts Location

    See More:

    Toyota Avalon Service & Repair Manual > Headlight Ecu: Installation
    INSTALLATION CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH side and LH side. The following procedure is for the LH side. PROCEDURE 1. INSTALL HEADLIGHT GASKET (a) Install a new headlight gasket. 2. INSTALL HEADLIGHT ECU SUB-ASSEMBLY NOTICE: If the headlight ECU sub-assembly has bee ...

    Toyota Avalon Owners Manual

    Toyota Avalon Service & Repair Manual

    © 2021 Copyright www.tavalon.net
    0.0243