How To Proceed With Troubleshooting

HINT: 

Use the following procedure to troubleshoot the audio and visual system.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. INSPECT BATTERY VOLTAGE 
   1. Measure the battery voltage with the engine switch off.

      Standard Voltage

      11 to 14 V

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

      NEXT: Go to next step 

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

      Result

      Result	Proceed to
      Radio receiver assembly turns on	A
      Radio receiver assembly does not turn on	B

      B → Go to step   6 

      A: Go to next step 

4. CHECK FOR DTC 

   HINT: 

   Refer to DTC CHECK/CLEAR .

   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 diagnostic mode, inspect the AVC-LAN and all the components that connect to the AVC-LAN for short circuits and repair or replace the malfunctioning part.
      • Even if the symptom malfunction is not confirmed, check the DTCs. This is because the system stores history DTCs.
      • Check and clear history DTCs. Then recheck 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 

5. DIAGNOSTIC TROUBLE CODE TABLE 

   HINT: 

   Refer to DIAGNOSTIC TROUBLE CODE TABLE .

   NEXT → Go to step   8 

6. PROBLEM SYMPTOMS TABLE 

   HINT: 

   Refer to PROBLEM SYMPTOMS TABLE .

   Result

   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. PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM 

   HINT: 

   Refer to TERMINALS OF ECU .

   NEXT: Go to next step 

8. ADJUST, REPAIR OR REPLACE 

   NEXT: Go to next step 

9. CONFIRMATION TEST 

   NEXT → END