How To Proceed With Troubleshooting

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Standard voltage

11 to 14 V

• If the voltage is below 11 V, recharge or replace the battery before proceeding.

NEXT: Go to next step 

1. Turn the engine switch on (IG).
2. 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

   B → Go to step 6 

   A: Go to next step 

1. Check for DTCs and note any codes that are output.
2. Delete the DTCs.
3. 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

   B → Go to step 6 

   A: Go to next step 

Find the output code on the diagnostic trouble code chart. Refer to DIAGNOSTIC TROUBLE CODE CHART .

NEXT → Go to step 8 

Refer to the problem symptoms table. Refer to PROBLEM SYMPTOMS TABLE .

Result

B → Go to step 8 

A: Go to next step 

1. Terminals of ECU. Refer to TERMINALS OF ECU .

   NEXT: Go to next step 

NEXT: Go to next step 

NEXT → END