Audio And Visual System (For Radio And Display Type) How To Proceed With Troubleshooting

  1. VEHICLE BROUGHT TO WORKSHOP

  2. INSPECT BATTERY VOLTAGE

  3. BASIC INSPECTION

  4. CHECK FOR DTC

  5. PROBLEM SYMPTOMS TABLE

  6. OVERALL ANALYSIS AND TROUBLESHOOTING

  7. ADJUST, REPAIR OR REPLACE

  8. RECHECK FOR DIAGNOSTIC TROUBLE CODE

  9. PERFORM CONFIRMATION TEST

Audio And Visual System (For Radio And Display Type) -- How To Proceed With Troubleshooting


HINT:
  1. Use these procedures to troubleshoot the audio and visual system.
  2. For vehicles equipped with an Extension Module, check the following contents for the radio and display receiver assembly and the Extension Module. (Refer to optional equipment's manuals)


1.VEHICLE BROUGHT TO WORKSHOP

    NEXT


    2.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.

    NEXT


    3.BASIC INSPECTION

    1. Turn the ignition switch to ON.

    2. Check whether or not the display appears on the display and audio and visual module display.

      Result
      Result
      		Proceed to
      Display appears
      		A
      Display does not appear
      		B



    		B.
    Go to step 6
    A


    4.CHECK FOR DTC

    1. Check for DTCs and note any codes that are output (Toyota Fortuner RM0000011BU0FAX.html).

    2. Clear the DTCs.

    3. Recheck for DTCs by simulating the operation indicated by the DTCs.

      Result
      Result
      		Proceed to
      DTC is not output
      		A
      DTC is output
      		B



    		B.
    Go to DIAGNOSTIC TROUBLE CODE CHART (Toyota Fortuner RM000003YVG01CX.html)
    A


    5.PROBLEM SYMPTOMS TABLE

    1. Refer to Problem Symptoms Table (Toyota Fortuner RM000003YVJ01BX.html).

      Result
      Result
      		Proceed to
      Fault is not listed in problem symptoms table
      		A
      Fault is listed in problem symptoms table
      		B

      2. HINT:
      If the symptom does not recur and no DTC is output, perform the symptom simulation method (Toyota Fortuner RM0000012Q9013X.html).


    		B.
    Go to step 7
    A


    6.OVERALL ANALYSIS AND TROUBLESHOOTING

    1. Terminals of ECU (Toyota Fortuner RM000003YVI018X.html).


    NEXT


    7.ADJUST, REPAIR OR REPLACE

      NEXT


      8.RECHECK FOR DIAGNOSTIC TROUBLE CODE
        HINT:
        After clearing DTCs, recheck for DTCs (Toyota Fortuner RM0000011BU0FAX.html).

      NEXT


      9.PERFORM CONFIRMATION TEST

        NEXT

        END