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How To Proceed With Troubleshooting

WARNING: This page is about a different car, the 2008 Toyota Yaris. However, it is still accessible from the selected car via links, so may be relevant.

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. REFER TO PROBLEM SYMPTOMS TABLE 
    PROBLEM SYMPTOMS TABLE

    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: GO TO NEXT STEP 

  4. OVERALL ANALYSIS AND TROUBLESHOOTING* 
    1. DATA LIST / ACTIVE TEST 
    2. TERMINALS OF ECU 
  5. ADJUST, REPAIR OR REPLACE 
  6. CONFIRMATION TEST