Navigation System How To Proceed With Troubleshooting

Audio Visual Telematics. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
Navigation Multi Info Display. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

  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

Navigation System -- How To Proceed With Troubleshooting


HINT:
Use these procedures to troubleshoot the navigation system.


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 ACC.

    2. Check whether or not the display appears on the navigation receiver assembly.

      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 (HILUX_TGN26 RM0000011BU0GCX.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 (HILUX_TGN26 RM000004X74002X.html)
    A


    5.PROBLEM SYMPTOMS TABLE

    1. Refer to problem symptoms table (HILUX_TGN26 RM000002LQ301GX.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 DTC is output, perform the symptom simulation method (HILUX_TGN26 RM000004QR7004X.html).


    		B.
    Go to step 7
    A


    6.OVERALL ANALYSIS AND TROUBLESHOOTING

    1. Terminals of ECU (HILUX_TGN26 RM0000011BQ0EKX.html).

    2. Inspect the front No. 1 speaker assembly (HILUX_TGN26 RM0000011Q100UX.html).

    3. Inspect the front No. 2 speaker assembly (HILUX_TGN26 RM0000011Q100UX.html).

    4. Inspect the rear speaker assembly (HILUX_TGN26 RM0000011Q200UX.html).


    NEXT


    7.ADJUST, REPAIR OR REPLACE
      HINT:
      After clearing DTCs, recheck for DTCs (HILUX_TGN26 RM0000011BU0GCX.html).

    NEXT


    8.RECHECK FOR DIAGNOSTIC TROUBLE CODE

      NEXT


      9.PERFORM CONFIRMATION TEST

        NEXT

        END