How To Proceed With Troubleshooting

HINT:

Use these procedures to troubleshoot the audio and visual system.

1. VEHICLE BROUGHT TO WORKSHOP 
2. INSPECT BATTERY VOLTAGE 

   Standard voltage: 11 to 14 V 

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

3. BASIC INSPECTION 
   1. Turn the ignition switch ON.
   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 

4. CHECK FOR DTC 
   1. Check for DTCs and note any codes that are output (see DTC CHECK / CLEAR  ).

      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.
   2. Delete the DTCs.
   3. Recheck for DTCs by simulating the operation indicated by the 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 

5. DIAGNOSTIC TROUBLE CODE CHART 
   1. Find the output code in the DIAGNOSTIC TROUBLE CODE CHART (see DIAGNOSTIC TROUBLE CODE CHART  ).

   NEXT:  Go to step  8

6. PROBLEM SYMPTOMS TABLE 
   1. Refer to the PROBLEM SYMPTOMS TABLE  .

      Result: 

      RESULT REFERENCE
      
      

      Result	Proceed to
      Fault is not listed in PROBLEM SYMPTOMS TABLE	A
      Fault is listed in PROBLEM SYMPTOMS TABLE	B

   B:  Go to step  8

   A: Go to Next Step 

7. OVERALL ANALYSIS AND TROUBLESHOOTING 
   1. Terminals of ECU (see TERMINALS OF ECU  ).
8. ADJUST, REPAIR OR REPLACE 
9. CONFIRMATION TEST 

   NEXT: END