Initial Inspection and Diagnostic Overview

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

HINT
Use the following procedure to troubleshoot the audio and visual system.

1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. INSPECT BATTERY VOLTAGE

(a) Measure the battery voltage.

Standard Voltage:

11 to 14 V

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

NEXT -- Continue to next step.

3. BASIC INSPECTION

(a) Turn the ignition switch to ON.

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

Result:





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

4. CHECK FOR DTC

HINT
Refer to DTC Check/Clear Reading and Clearing Diagnostic Trouble Codes.

(a) Check for DTCs and note any codes that are output.

(b) Clear the DTCs.

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

HINT
* If the system cannot enter diagnostic mode, inspect the AVC-LAN and all the components that connect to the AVC-LAN for short circuits and repair or replace the malfunctioning part.
* Even if the symptom malfunction is not confirmed, check the DTCs. This is because the system stores history DTCs.
* Check and clear history DTCs. Then recheck for DTCs.

Result:





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

5. DIAGNOSTIC TROUBLE CODE CHART

HINT
Refer to Diagnostic Trouble Code Chart Audio and Visual System.

NEXT -- Go to step 8

6. PROBLEM SYMPTOMS TABLE

HINT
Refer to Problem Symptoms Table Problem Symptoms Table.

Result:





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

7. PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM

HINT
Refer to 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