How To Proceed With Troubleshooting

Standard Voltage: 11 to 14 V 

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

1. Turn the engine switch on (IG).
2. Check whether or not the radio receiver turns on.

   Result 

   RESULT REFERENCE
   
   

   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. Clear the DTCs
3. Recheck for DTCs by simulating the operation indicated by the DTCs.

   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 for DTCs This is because the system stores past DTCs
   • Check and clear the past DTCs. Then check for DTCs

   Result 

   RESULT REFERENCE
   
   

   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 Diagnostic Trouble Code Chart (See DIAGNOSTIC TROUBLE CODE CHART  )

NEXT: Go to step  8

Refer to PROBLEM SYMPTOMS TABLE 

Result 

B: Go to step  8

A: Go to next step 

1. Terminals of ECU (See TERMINALS OF ECU  )

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