Audio And Visual System (W/ Multi-Display Without Dvd Player) 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. CHECK AUDIO AND VISUAL SYSTEM NORMAL CONDITION

  6. CHECK FOR DTC

  7. DTC CLEAR

  8. RECHECK FOR DTC

  9. DIAGNOSTIC TROUBLE CODE CHART

  10. PROBLEM SYMPTOMS TABLE

  11. PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM

  12. CHECK CIRCUIT

  13. RECHECK FOR DTC

  14. PERFORM CONFIRMATION TEST

Audio And Visual System (W/ Multi-Display Without Dvd Player) -- 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
      HINT:
      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.CHECK AUDIO AND VISUAL SYSTEM NORMAL CONDITION

    1. Refer to Operation Check (Link).

      Result:
      Result
      		Proceed to
      Symptom is not normal operation.
      		A
      Symptom is normal operation.
      		B


    		B.
    SYMPTOM IS NORMAL OPERATION
    A


    6.CHECK FOR DTC

    1. Refer to DTC Check/Clear (COROLLA_ZRE142 RM0000011BU0KAX.html).

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


    		B.
    Go to step 10
    A


    7.DTC CLEAR

    1. Refer to DTC Check/Clear (COROLLA_ZRE142 RM0000011BU0KAX.html).

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

    NEXT


    8.RECHECK FOR DTC

    1. Refer to DTC Check/Clear (COROLLA_ZRE142 RM0000011BU0KAX.html).

      Result:
      Result
      		Proceed to
      DTCs are output.
      		A
      DTCs are not output.
      		B
      HINT:
      1. Even if the malfunction symptom is not confirmed, check for DTCs. This is because the system stores history DTCs.
      2. Check the DTCs and inspect the area that the code indicates.


    		B.
    Go to step 10
    A


    9.DIAGNOSTIC TROUBLE CODE CHART

    1. Find the output code in Diagnostic Trouble Code Chart (COROLLA_ZRE142 RM0000011BO0FFX.html).



    		NEXT.
    Go to step 12

    10.PROBLEM SYMPTOMS TABLE

    1. Refer to Problem Symptoms Table (COROLLA_ZRE142 RM0000011BR0HQX.html).

      Result:
      Result
      		Proceed to
      Fault is not listed in Problem Symptoms Table.
      		A
      Fault is listed in Problem Symptoms Table.
      		B
      HINT:
      If the symptom does not recur and no DTCs are output, attempt to reproduce the symptoms (COROLLA_ZRE142 RM000000UZ108OX.html).


    		B.
    Go to step 12
    A


    11.PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM

    1. Refer to Terminals of ECU (COROLLA_ZRE142 RM0000011BQ0HUX.html).


    NEXT


    12.CHECK CIRCUIT

    1. Adjust, repair or replace as necessary.


    NEXT


    13.RECHECK FOR DTC

    1. After clearing DTCs, recheck for DTCs.


    NEXT


    14.PERFORM CONFIRMATION TEST

      NEXT

      END