Audio And Visual System (W/O Multi-Display) How To Proceed With Troubleshooting

Audio Visual Telematics. Corolla. Zre142 Aze141
Audio Video. Corolla. Zre142 Aze141

  1. VEHICLE BROUGHT TO WORKSHOP

  2. CUSTOMER PROBLEM ANALYSIS

  3. INSPECT BATTERY VOLTAGE

  4. CHECK CABIN

  5. PROBLEM SYMPTOMS TABLE

  6. PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM

  7. ADJUST, REPAIR OR REPLACE

  8. CONFIRMATION TEST

Audio And Visual System (W/O Multi-Display) -- How To Proceed With Troubleshooting


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


1.VEHICLE BROUGHT TO WORKSHOP

    NEXT


    2.CUSTOMER PROBLEM ANALYSIS
      1. 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.
      2. Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
      3. 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

    NEXT


    3.INSPECT BATTERY VOLTAGE

    1. Measure the battery voltage.

      Standard Voltage:
      11 to 14 V
      1. If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.

    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.
      HINT:
      1. A humid cabin and a rapid change in temperature may lead to condensation. Condensation in the cabin may cause a short circuit.
      2. 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.


    		NG.
    SET CABIN TO APPROPRIATE TEMPERATURE
    OK


    5.PROBLEM SYMPTOMS TABLE

    1. Refer to Problem Symptoms Table (Link).

      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 5
    A


    6.PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM

    1. Refer to Terminals of ECU (COROLLA_ZRE142 RM0000012A70CIX.html).


    NEXT


    7.ADJUST, REPAIR OR REPLACE

      NEXT


      8.CONFIRMATION TEST

        NEXT

        END