| Last Modified: 11-27-2007 | 1.6 D | |
| Service Category: Audio/Visual/Telematics | Section: Audio/Video | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM00000102A02ZX |
| Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING (2008 LX570) | ||
HOW TO PROCEED WITH TROUBLESHOOTING
HINT:
Use these procedures to troubleshoot the audio and visual system.
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1. |
VEHICLE BROUGHT TO WORKSHOP |
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2. |
INSPECT BATTERY VOLTAGE |
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding.
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3. |
CHECK IF SAME SYMPTOM APPEARS IN NAVIGATION SYSTEM |
(a) Refer to the navigation system.
Result
|
Result |
Proceed to |
|---|---|
|
Symptom does not appear |
A |
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Symptom appears |
B |
| B |
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FOLLOW NAVIGATION SYMPTOM CHART TO PERFORM TROUBLESHOOTING |
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4. |
BASIC INSPECTION |
(a) Turn the engine switch on (ACC).
(b) Check whether or not the display appears on the multi-display or display and navigation module display.
Result
|
Result |
Proceed to |
|---|---|
|
Display appears |
A |
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Display does not appear |
B |
| B |
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Go to step 6 |
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5. |
CHECK FOR DTC |
(a) Check for DTCs and note any codes that are output.
(b) Clear the DTCs.
(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 conditions 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 as the system stores past DTCs.
-
Refer to the detailed description on the diagnostic screen as necessary
.
- Check and clear past diagnostic trouble codes. Check the diagnostic trouble code and inspect the area the code indicates.
Result
|
Result |
Proceed to |
|---|---|
|
DTC is not output |
A |
|
DTC is output |
B |
| B |
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Go to step 7 |
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6. |
PROBLEM SYMPTOMS TABLE |
Result
|
Result |
Proceed to |
|---|---|
|
Fault is not listed in problem symptoms table |
A |
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Fault is listed in problem symptoms table |
B |
| B |
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Go to step 8 |
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7. |
OVERALL ANALYSIS AND TROUBLESHOOTING |
(a) Operation check
.
(b) Terminals of ECU
.
(c) Inspect the front No. 1 speaker
.
(d) Inspect the front No. 2 speaker
.
(e) Inspect the front No. 3 speaker
.
(f) Inspect the front No. 4 speaker
.
(g) Inspect the No. 1 woofer box speaker
.
(h) Inspect the rear speaker set
.
(i) Inspect the rear No. 2 speaker
.
(j) Inspect the rear No. 3 speaker
.
(k) Inspect the rear header speaker
.
(l) Inspect the steering pad switch
.
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8. |
ADJUST, REPAIR OR REPLACE |
| NEXT |
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END |
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