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How To Proceed With Troubleshooting

WARNING: This page is about a different car, the 2004 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Troubleshoot in accordance with the procedures on the following pages.
  1. VEHICLE BROUGHT TO WORKSHOP 
    1. Go to next step.
  2. DTC CHECK (See  DIAGNOSTIC TROUBLE CODE CHART  ) 
    1. Check for DTCs and make a note of the code that is output.
    2. Delete the DTC.
    3. Check if the DTC is output once again when the problem symptom is simulated based on the noted code.
      1. When no code is output (symptom check and simulation are possible), proceed to A.
      2. When a code is output, proceed to B.
    1. B: Go to step   4 . 
    2. A: Go to next step. 
  3. PERFORM TROUBLESHOOTING ACCORDING TO MALFUNCTION SYMPTOM 
    1. Pre-check (See PRE-CHECK )
    2. Terminals of ECU (See TERMINALS OF ECU )
  4. ADJUST, REPAIR OR REPLACE 
    1. END 
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