AUDIO AND VISUAL SYSTEM(for 8 Speakers) HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

PROCEDURE

1. Click here

   VEHICLE BROUGHT TO WORKSHOP

   Result
   Proceed to NEXT

   
   
   • NEXTClick here
2. Click here

   CUSTOMER PROBLEM ANALYSIS

   
   

   • When troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.

   • Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.

   • The following 5 items are important points for problem analysis:

     What	Vehicle model, system name
     When	Date, time, occurrence frequency
     Where	Road conditions
     Under what conditions?	Driving conditions, weather conditions
     How did it happen?	Problem symptoms

   Result
   Proceed to NEXT

   
   
   • NEXTClick here
3. Click here

   INSPECT AUXILIARY BATTERY

   
   

   1. Measure the auxiliary battery voltage with the power switch off.

      Standard Voltage
      11 to 14 V

      Tip:

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

      Result
      Proceed to NEXT

   
   
   • NEXTClick here
4. Click here

   CHECK CABIN

   
   

   1. Check that condensation is not likely to occur in the cabin and that the temperature is not high or extremely low in the cabin.

      OK
      Condensation is not likely being produced and the temperature is not high or extremely low.

      Tip:
      

      • A humid cabin and a rapid change in temperature may lead to condensation. Condensation in the cabin may cause a short circuit.

      • The audio and visual system may not operate normally when the temperature is -20°C (-4°F) or lower, or 65°C (149°F) or higher.

      Result
      Proceed to OK NG

   
   
   • OKClick here
   • NG

     SET CABIN TO APPROPRIATE TEMPERATURE

5. Click here

   CHECK CAN COMMUNICATION SYSTEM*

   
   

   1. Check if CAN communication system DTCs are output.

      w/ Central Gateway ECU:Click here

      w/o Central Gateway ECU:Click here

      Result
      Result Proceed to CAN DTCs are not output. A CAN DTCs are output (w/ Central Gateway ECU). B CAN DTCs are output (w/o Central Gateway ECU). C

   
   
   • AClick here
   • B

     GO TO CAN COMMUNICATION SYSTEM (w/ Central Gateway ECU)Click here

   • C

     GO TO CAN COMMUNICATION SYSTEM (w/o Central Gateway ECU)Click here

6. Click here

   CHECK FOR DTC*

   
   

   1. Refer to DTC Check / Clear (Click here).

      Result
      Result Proceed to DTCs are output. A DTCs are not output. B

   
   
   • AClick here
   • BClick here

     GO TO STEP 10

7. Click here

   DTC CLEAR*

   
   

   1. Refer to DTC Check / Clear (Click here).

      Tip:

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

      Result
      Proceed to NEXT

   
   
   • NEXTClick here
8. Click here

   RECHECK FOR DTC*

   
   

   1. Refer to DTC Check / Clear (Click here).

      Result
      Result Proceed to DTCs are output. A DTCs are not output. B

      Tip:
      

      • Even if the problem 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 GTS.

      • Check for DTCs and inspect the area that the code indicates.

   
   
   • AClick here
   • BClick here
9. Click here

   DIAGNOSTIC TROUBLE CODE CHART

   
   

   1. Find the output code in Diagnostic Trouble Code Chart (Click here).

      Result
      Proceed to NEXT

   
   
   • NEXTClick here

     GO TO STEP 12

10. Click here

    PROBLEM SYMPTOMS TABLE

    
    

    1. Refer to Problem Symptoms Table (Click here).

       Result
       Result Proceed to Fault is not listed in Problem Symptoms Table. A Fault is listed in Problem Symptoms Table. B

       Tip:

       If the symptoms do not recur and no DTCs are output, attempt to reproduce the symptoms (Click here).

    
    
    • AClick here
    • BClick here

      GO TO STEP 12

11. Click here

    PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM

    
    

    1. Refer to Terminals of ECU (Click here).

       Result
       Proceed to NEXT

    
    
    • NEXTClick here
12. Click here

    CHECK CIRCUIT

    
    

    1. Adjust, repair or replace as necessary.

       Result
       Proceed to NEXT

    
    
    • NEXTClick here
13. Click here

    RECHECK FOR DTC*

    
    

    1. After clearing DTCs, recheck for DTCs (Click here).

       Result
       Proceed to NEXT

    
    
    • NEXTClick here
14. Click here

    PERFORM CONFIRMATION TEST

    Result
    Proceed to NEXT

    
    
    • NEXT

      END