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July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

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.
  1. VEHICLE BROUGHT TO WORK SHOP 
    1. Go to next step.
  2. CUSTOMER PROBLEM ANALYSIS (See  CUSTOMER PROBLEM ANALYSIS CHECK  ) 
    1. Go to next step.
  3. CHECK BODY MULTIPLEX COMMUNICATION SYSTEM (See  HOW TO PROCEED WITH TROUBLESHOOTING  ) 
    1. Check for the DTC outputs.
    1. DTC OUTPUTS (PROCEED TO "BODY MULTIPLEX COMMUNICATION SYSTEM") 
    2. DTC DOES NOT OUTPUT (GO TO STEP 4) 
  4. DTC CHECK (See  PRE-CHECK  ) 
    1. MALFUNCTION CODE (GO TO STEP 5) 
    2. NORMAL CODE (GO TO STEP   6 ) 
  5. DTC CHART (See  DIAGNOSTIC TROUBLE CODE CHART  ) 
    1. GO TO STEP   8 
  6. PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE  ) 
    1. Go to next step.
  7. TERMINAL OF ECU (See  TERMINALS OF ECU  ) 
    1. Go to next step.
  8. CIRCUIT INSPECTION (See  DTC B1244 LIGHT SENSOR CIRCUIT MALFUNCTION  
    1. Go to next step.
  9. IDENTIFICATION OF PROBLEM 
    1. Go to next step.
  10. REPAIR OR REPLACE 
    1. Go to next step.
  11. CONFIRMATION TEST 
    1. Go to next step.
    2. END 
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