Initial Inspection and Diagnostic Overview

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

HOW TO PROCEED WITH TROUBLESHOOTING

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 engine switch on (IG).
(b) Check whether or not the radio receiver turns on.
Result:






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.
(b) Delete the DTCs.
(c) Recheck by simulating the operation indicated by the DTC.
HINT:
- If the system cannot enter the diagnosis 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.
- Check and clear past DTCs. Then check for DTCs.
Result:






B -- Go to step 6
A -- Continue to next step.
5. DIAGNOSTIC TROUBLE CODE CHART
Find the output code on the diagnostic trouble code chart Audio and Visual System.
NEXT -- Go to step 8
6. PROBLEM SYMPTOMS TABLE
Refer to the problem symptoms table Problem Symptoms Table.
Result:






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