How to Proceed With Troubleshooting

AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM (w/o Navigation System with Multi-display): HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use the following procedure to troubleshoot the audio and visual system (w/o Navigation System with Multi-display).
* *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. INSPECT BATTERY VOLTAGE

(a) Inspect the battery voltage.

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 -- Continue to next step.

3. DIAGNOSTIC QUESTIONING AND SYMPTOM CONFIRMATION

(a) Ask the customer about symptoms and confirm malfunctions.

Result:





B -- Go to step 11, AND PROCEED TO "BLACK SCREEN"
A -- Continue to next step.

4. OPERATION CHECK

(a) Refer to Check System Normal Condition Audio And Visual System (w/o Navigation System with Multi-display).

Result:





B -- SYMPTOM IS NORMAL OPERATION
A -- Continue to next step.

5. CHECK MULTIPLEX COMMUNICATION SYSTEM*

(a) Check for DTC output How To Proceed With Troubleshooting.

Result:





B -- GO TO MULTIPLEX COMMUNICATION SYSTEM
A -- Continue to next step.

6. CHECK CAN COMMUNICATION SYSTEM*

(a) Check for DTC output How to Proceed With Troubleshooting.

Result:





B -- GO TO CAN COMMUNICATION SYSTEM
A -- Continue to next step.

7. CHECK FOR DTC*

(a) Refer to DTC Check / Clear Audio And Visual System (w/o Navigation System with Multi-display).

Result:





HINT
If more information is needed, perform a recheck using the "System Check Mode" screen after rechecking for DTCs using the Techstream System Description.

B -- Go to step 11
A -- Continue to next step.

8. DTC CLEAR*

(a) Refer to DTC Check / Clear Audio And Visual System (w/o Navigation System with Multi-display).

HINT
The current DTCs may not indicate actual malfunctions depending on the vehicle operating conditions.

NEXT -- Continue to next step.

9. RECHECK FOR DTC*

Result:





HINT
* Even if the malfunction symptom is not confirmed, check for DTCs. This is because the system stores history DTCs.
* If more information is needed, perform a recheck using the "System Check Mode" screen after rechecking for DTCs using the Techstream System Description.
* Check the DTC and inspect the area code indicates.

B -- Go to step 11
A -- Continue to next step.

10. DIAGNOSTIC TROUBLE CODE CHART

(a) Find the output code in Diagnostic Trouble Code Chart Audio And Visual System (w/o Navigation System with Multi-display).

NEXT -- Go to step 13

11. PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table Problem Symptoms Table.

Result:





HINT
If the symptom does not recur and no DTC is output, perform the symptom reproduction method How To Proceed With Troubleshooting.

B -- Go to step 13
A -- Continue to next step.

12. PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM

(a) Refer to Terminals of ECU Audio And Visual System (w/o Navigation System with Multi-display).

NEXT -- Continue to next step.

13. CHECK CIRCUIT

(a) Adjust, repair or replace as necessary.

NEXT -- Continue to next step.

14. RECHECK FOR DIAGNOSTIC TROUBLE CODE

HINT
After clearing the DTCs, recheck for DTCs.

NEXT -- Continue to next step.

15. PERFORM CONFIRMATION TEST

NEXT -- END