Initial Inspection and Diagnostic Overview

AUDIO AND VISUAL SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

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 ACC.
(b) Check whether or not the display appears on the radio receiver.

Result





B -- Go to step 5
A -- Continue to next step.
4. CHECK AUDIO MODEL
(a) Check the audio model.

Result





B -- Go to step 8
A -- Continue to next step.
5. CHECK FOR DTC
(a) Check for DTCs and note any codes that are output.
(b) Delete for DTC.
(c) Recheck for DTCs. Based on the DTC output in the first step, try to force output of the audio system DTC by simulating the operation indicated by the DTC.
HINT:
- If the system cannot enter the diagnosis mode, inspect each AVC-LAN communication signal and repair or replace problem parts.
- Even if the malfunction symptom is not confirmed, check for DTCs. This is because the system stores past DTCs.
- Refer to the detailed description on the diagnostic screen, as necessary Reading and Clearing Diagnostic Trouble Codes.
- Check and clear past diagnostic trouble codes. Check the diagnostic trouble code and inspect the area the code indicates.

Result





B -- Go to step 8
A -- Continue to next step.
6. 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

(b) Inspect front No. 1 speaker Front Side Speaker

(c) Inspect front No. 2 speaker Front Side Speaker

(d) Inspect stereo component speaker Front Side Speaker

(e) Inspect front stereo component speaker Front Center Speaker

(f) Inspect woofer box speaker Rear Side Speaker

(g) Inspect rear speaker Rear Side Speaker

(h) Inspect rear No. 2 speaker Rear Center Speaker

(i) Inspect steering pad switch Testing and Inspection

NEXT -- Continue to next step.
8. ADJUST, REPAIR OR REPLACE
NEXT -- END