Home Audio/Visual/Telematics Audio/Video AUDIO AND VISUAL SYSTEM
Last Modified: 11-27-2007 1.6 J
Service Category: Audio/Visual/Telematics Section: Audio/Video
Model Year: 2008 Model: LX570 Doc ID: RM0000012CI031X
Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: DESCRIPTION (2008 LX570)

Radio Receiver Power Source Circuit

DESCRIPTION

This circuit provides power to the radio receiver.

WIRING DIAGRAM



INSPECTION PROCEDURE

PROCEDURE

1.

INSPECT FUSE (RAD NO. 1, ACC)

(a) Disconnect the RAD NO. 1 fuse from the engine room relay block.

(b) Disconnect the ACC fuse from the main body ECU.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

RAD NO. 1 fuse

Always

Below 1 Ω

ACC fuse

OK

2.

CHECK HARNESS AND CONNECTOR (RECEIVER - BATTERY AND BODY GROUND)


(a) Disconnect the F1 receiver connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

F1-20 (GND) - Body ground

Always

Below 1 Ω

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

F1-1 (B) - Body ground

Always

11 to 14 V

F1-11 (ACC) - Body ground

Engine switch on (ACC)

11 to 14 V

OK