AUDIO AND VISUAL SYSTEM(for Radio Receiver Type) HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

PROCEDURE

1. VEHICLE BROUGHT TO WORKSHOP

   Result
   Proceed to NEXT

   
   

   NEXT

2. 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 in 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

   
   

   NEXT

3. INSPECT BATTERY VOLTAGE

   
   

   1. Measure the battery voltage with the ignition 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.

      Result
      Proceed to NEXT

   
   

   NEXT

4. 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.

      Tech Tips

      
      

      • 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 less, or 65°C (149°F) or higher.

      Result
      Proceed to OK NG

   
   

   NG

   SET CABIN TO APPROPRIATE TEMPERATURE

   OK

5. PROBLEM SYMPTOMS TABLE

   
   

   1. Refer to Problem Symptoms Table.

      Click here

      Result
      Proceed to Fault is not listed in Problem Symptoms Table Fault is listed in Problem Symptoms Table

   
   

   Fault is listed in Problem Symptoms Table

   ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE

   Fault is not listed in Problem Symptoms Table

6. PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM

   
   

   1. Refer to Terminals of ECU.

      Click here

      Result
      Proceed to NEXT

   
   

   NEXT

7. ADJUST, REPAIR OR REPLACE

   
   

   1. Adjust, repair or replace as necessary.

      Result
      Proceed to NEXT

   
   

   NEXT

8. CONFIRMATION TEST

   Result
   Proceed to NEXT

   
   

   NEXT

   END