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: RM000002PMO00AX
Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: DESCRIPTION (2008 LX570)

Multi-display Power Source Circuit

DESCRIPTION

This circuit provides power to the multi-display.

HINT:

Only vehicles without a navigation system have this circuit.

WIRING DIAGRAM



INSPECTION PROCEDURE

PROCEDURE

1.

INSPECT FUSE (TV, ACC, ECU-IG No. 1)

(a) Disconnect the ACC and ECU-IG No. 1 fuses from the main body ECU.

(b) Disconnect the TV fuse from the cowl side junction block RH.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

TV fuse

Always

Below 1 Ω

ACC fuse

ECU-IG No. 1 fuse

OK

2.

CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY - BATTERY AND BODY GROUND)


(a) Disconnect the F28 display connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

F28-10 (GND1) - Body ground

Always

Below 1 Ω

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

F28-1 (+B1) - Body ground

Always

11 to 14 V

F28-2 (ACC) - Body ground

Engine switch on (ACC)

11 to 14 V

F28-3 (IG) - Body ground

Engine switch on (IG)

11 to 14 V

OK