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How To Proceed With Troubleshooting

WARNING: This page is about a different car, the 2004 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.
  1. VEHICLE BROUGHT TO WORK SHOP 
  2. CUSTOMER PROBLEM ANALYSIS (See  CUSTOMER PROBLEM ANALYSIS CHECK  ) 
  3. CHECK AND CLEAR DTC (See  PRE-CHECK  ) 
    1. DTC IS NOT OUTPUT (PROCEED TO "BODY MULTIPLEX COMMUNICATION SYSTEM") 
    2. DTC IS OUTPUTS (GO TO STEP 4) 
  4. PROBLEM SYMPTOM CONFIRMATION 
    1. SYMPTOM DOES NOT OCCUR (GO TO STEP 5) 
    2. SYMPTOM OCCURS (GO TO STEP   6 ) 
  5. SYMPTOM SIMULATION (See  HOW TO PROCEED WITH TROUBLESHOOTING  ) 
  6. DTC CHECK (See  PRE-CHECK  ) 
    1. MALFUNCTION CODE (GO TO STEP 7) 
    2. NORMAL CODE (GO TO STEP   8 ) 
  7. DTC CHART (See  DIAGNOSTIC TROUBLE CODE CHART  ) 
    1. GO TO STEP   9 
  8. PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE  ) 
  9. CIRCUIT INSPECTION (See  DTC P0500/21 VEHICLE SPEED SENSOR "A", DTC P0503/23 VEHICLE SPEED SENSOR "A" INTERMITTENT/ERRATIC/HIGH   -  DIAGNOSIS CIRCUIT  ) 
  10. IDENTIFICATION OF PROBLEM 
  11. REPAIR OR REPLACE 
  12. CONFIRMATION TEST 
    1. END