FixVault

How To Proceed With Troubleshooting

HINT:

  1. VEHICLE BROUGHT TO WORKSHOP 
  2. INSPECT BATTERY VOLTAGE 

    Standard voltage: 

    11 to 14 V 

    If the voltage is below 11V, recharge or replace the battery before proceeding.

  3. CHECK IF SAME SYMPTOM APPEARS IN NAVIGATION SYSTEM 
    1. Refer to the NAVIGATION SYSTEM (FOR DVD) .

      Result 

      RESULT CHART

      Result Proceed to
      Symptom does not appear A
      Symptom appears (for HDD) B
      Symptom appears (for DVD) C

    B: FOLLOW NAVIGATION SYMPTOM CHART TO PERFORM TROUBLESHOOTING  (See PROBLEM SYMPTOMS TABLE )

    C: FOLLOW NAVIGATION SYMPTOM CHART TO PERFORM TROUBLESHOOTING  (See PROBLEM SYMPTOMS TABLE )

    A: Go to Next Step 

  4. INSPECT COMMUNICATION OF CAN COMMUNICATION SYSTEM* 
    1. Using the Techstream, check if the CAN communication system is functioning normally.

      Result 

      DTC OUTPUT RESULT

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

    B: Go to CAN COMMUNICATION SYSTEM  (See CAN COMMUNICATION SYSTEM )

    A: Go to Next Step 

  5. CHECK FOR DTC* 
    1. Check for DTCs and note any codes that are output (see DTC CHECK/CLEAR ).
    2. Clear the DTC (see DTC CHECK/CLEAR ).
    3. Check for DTCs. Try to prompt the DTC by simulating the original activity that the DTC suggests.

      Result 

      DTC OUTPUT RESULT

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

    B:  Go to step  8

    A: Go to Next Step 

  6. PROBLEM SYMPTOMS TABLE 
    1. Refer to the problem symptoms table (see PROBLEM SYMPTOMS TABLE ).

      Result 

      RESULT CHART

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

    B:  Go to step  8

    A: Go to Next Step 

  7. OVERALL ANALYSIS AND TROUBLESHOOTING 
    1. Terminals of ECU (see TERMINALS OF ECU ).
    2. Data List/Active Test (see FAIL-SAFE CHART ).
  8. ADJUST, REPAIR OR REPLACE 
  9. CONFIRMATION TEST 

    END: END