How To Proceed With Troubleshooting

Standard voltage: 

11 to 14 V 

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

1. Turn the ignition switch to the ON position.
2. Check whether the radio receiver turns on.

   Result 

   RESULT TABLE
   
   

   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 diagnostic 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 TABLE
   
   

   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 in DIAGNOSTIC TROUBLE CODE TABLE  .

NEXT: Go to step   8 

Refer to PROBLEM SYMPTOMS TABLE  .

Result 

B: Go to step   8 

A: Go to Next step 

1. See TERMINALS OF ECU  .

NEXT: END