Toyota Avalon Service & Repair Manual: Reverse Signal Circuit

DESCRIPTION

The radio and display receiver assembly receives a reverse signal from the BKUP LP relay.

WIRING DIAGRAM

PROCEDURE

1.	CHECK BACK-UP LIGHT

(a) Move the shift lever to R and check if the back-up lights come on.

OK:

The back-up lights come on.

GO TO LIGHTING SYSTEM

2.	CHECK HARNESS AND CONNECTOR (REVERSE SIGNAL)

(a) Disconnect the G3 radio and display receiver assembly connector.

(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

G3-28 (REV) - Body ground

Power switch on (IG)

Shift lever in R

11 to 14 V

G3-28 (REV) - Body ground

Power switch on (IG)

Shift lever not in R

Below 1 V

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR

Toyota Avalon Service & Repair Manual > Audio And Visual System(for Gasoline Model): 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 component amplifier assembly, and then is sent to the speakers. If there is an open or short in this circuit, ...

Toyota Avalon Owners Manual