2009 Toyota Sienna CEFACTORY OEM SERVICE PROCEDURE

How To Proceed With Troubleshooting

WARNING: This page is about a different car, the 2009 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

  • The anti-lock brake system troubleshooting procedures are based on the premise that the CAN communication system is normally functioning. Check the CAN communication system first before troubleshooting the anti-lock brake system (See HOW TO PROCEED WITH TROUBLESHOOTING ).
  • *: Use the Techstream.
  1. VEHICLE BROUGHT TO WORKSHOP 
  2. CUSTOMER PROBLEM ANALYSIS 
    1. Interview the customer and confirm the problem (See HOW TO PROCEED WITH TROUBLESHOOTING ).
  3. CHECK DTC AND FREEZE FRAME DATA* 
    1. Check and record DTCs and Freeze Frame Data.
    2. Clear the DTCs and Freeze Frame Data (See DTC CHECK / CLEAR  for DTC Check/Clear, and FREEZE FRAME DATA  for Freeze Frame Data).
    3. Reconfirm the DTCs.
      1. Reconfirm the DTCs based on the recorded DTCs and Freeze Frame Data (See DTC CHECK / CLEAR  for DTC Check/Clear, and FREEZE FRAME DATA  for Freeze Frame Data).

    Result 

    RESULT CHART

    Result Proceed to
    DTC is output A
    DTC is not output (Problem symptom does not occur) B
    DTC is not output (Problem symptom occurs) C

    B:  GO TO STEP  5

    C:  GO TO STEP  6

    A: Go to next step 

  4. DIAGNOSTIC TROUBLE CODE CHART 
    1. Proceed to Diagnostic Trouble Code Chart (See DIAGNOSTIC TROUBLE CODE CHART ).

    NEXT:  GO TO STEP  7

  5. SYMPTOM SIMULATION 
    1. Proceed to Diagnosis System (See DIAGNOSIS SYSTEM ).
  6. PROBLEM SYMPTOMS TABLE 
    1. Proceed to Problem Symptoms Table (See PROBLEM SYMPTOMS TABLE ).
  7. CIRCUIT INSPECTION* 
  8. IDENTIFICATION OF PROBLEM 
  9. REPAIR OR REPLACEMENT 
  10. CONFIRMATION TEST* 

    NEXT: END 

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.