HOW TO PROCEED WITH TROUBLESHOOTING
Troubleshooting
| 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.BASIC INSPECTION |
Turn the engine switch on (IG).
Check whether or not the radio receiver turns on.
- Result:
Result
Proceed to
Radio receiver turns on
A
Radio receiver does not turn on
B
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| 4.CHECK FOR DTC |
Check for DTCs and note any codes that are output.
Delete the DTCs.
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:
Result
Proceed to
DTC is output again
A
DTC is not output
B
- 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.
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| 5.DIAGNOSTIC TROUBLE CODE CHART |
- Find the output code on the diagnostic trouble code chart (Click here).
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| 6.PROBLEM SYMPTOMS TABLE |
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Refer to the problem symptoms table (Click here).
- Result:
Result
Proceed to
Fault is not listed in problem symptoms table
A
Fault is listed in problem symptoms table
B
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| 7.OVERALL ANALYSIS AND TROUBLESHOOTING |
Terminals of ECU (Click here).
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| 8.ADJUST, REPAIR OR REPLACE |
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| 9.CONFIRMATION TEST |
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