AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING (2008 Sequoia)

Last Modified: 11-29-2007		1.6 D
Service Category: Audio/Visual/Telematics	Section: Audio/Video
Model Year: 2008	Model: Sequoia	Doc ID: RM000000PMP02TX
Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING (2008 Sequoia)

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

Use these procedures to troubleshoot the audio and visual system.

1.	VEHICLE BROUGHT TO WORKSHOP

2.	INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding.

3.	BASIC INSPECTION

(a) Turn the ignition switch to ON.

(b) Check whether or not the radio receiver turns on.

Result	Proceed to
Radio receiver turns on	A
Radio receiver does not turn on	B

Go to step 6

4.	CHECK FOR DTC

HINT:

If the system cannot enter the diagnostic mode, inspect the AVC-LAN and all the components that connect to the AVC-LAN for short circuits and repair or replace the problem part.
Even if the malfunction symptom is not confirmed, check the DTCs. This is because the system stores past DTCs.

(b) Clear the DTCs.

Result	Proceed to
DTC is output again	A
DTC is not output	B

Go to step 6

5.	DIAGNOSTIC TROUBLE CODE CHART

(a) Find the output code in the Diagnostic Trouble Code Chart .

Go to step 8

6.	PROBLEM SYMPTOMS TABLE

(a) Refer to the Problem Symptoms Table .

Result	Proceed to
Fault is not listed in Problem Symptoms Table	A
Fault is listed in Problem Symptoms Table	B

Go to step 8

7.	OVERALL ANALYSIS AND TROUBLESHOOTING

(a) Terminals of ECU .

8.	ADJUST, REPAIR OR REPLACE

9.	CONFIRMATION TEST

END