Initial Inspection and Diagnostic Overview

AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HINT
Use these procedures to troubleshoot the audio and visual system.

1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

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

NEXT -- Continue to next step.

3. BASIC INSPECTION

(a) Turn the ignition switch to ON.

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





B -- Go to step 6
A -- Continue to next step.

4. CHECK FOR DTC

(a) Check for DTCs and note any codes that are output Reading and Clearing Diagnostic Trouble Codes.

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.

(c) Recheck for DTCs by simulating the operation indicated by the DTCs.





B -- Go to step 6
A -- Continue to next step.

5. DIAGNOSTIC TROUBLE CODE CHART

(a) Find the output code in the Diagnostic Trouble Code Chart Audio and Visual System.

NEXT -- Go to step 8

6. PROBLEM SYMPTOMS TABLE

(a) Refer to the Problem Symptoms Table Problem Symptoms Table.





B -- Go to step 8
A -- Continue to next step.

7. OVERALL ANALYSIS AND TROUBLESHOOTING

(a) Terminals of ECU Pinout Values and Diagnostic Parameters.

NEXT -- Continue to next step.

8. ADJUST, REPAIR OR REPLACE

NEXT -- Continue to next step.

9. CONFIRMATION TEST

NEXT -- END