2004 Toyota Matrix Base, 4WDFACTORY OEM SERVICE PROCEDURE

How To Proceed With Troubleshooting

The hand-held tester can be used at step 3, 4, 5, 7, 10.

  1. VEHICLE BROUGHT TO WORKSHOP 
    1. :Go to next step. 
  2. CUSTOMER PROBLEM ANALYSIS (See  CUSTOMER PROBLEM ANALYSIS CHECK  ) 
    1. :Go to next step. 
    3. NOTE:

    If the display indicates a communication fault in the tool, inspect DLC3.

  3. CONNECT HAND-HELD TESTER TO DLC3 
    1. :Go to next step. 
    4. NOTE:

    Record or print DTC and freeze frame data, if needed.

  4. CHECK DTC AND FREEZE FRAME DATA (See  DTC CHECK/CLEAR  ) 
    1. :Go to next step. 
  5. CLEAR DTC AND FREEZE FRAME DATA (See  DTC CHECK/CLEAR  ) 
    1. :Go to next step. 
  6. VISUAL INSPECTION 
    1. :Go to next step. 
  7. SET CHECK (TEST) MODE DIAGNOSIS (See  CHECK MODE PROCEDURE  ) 
    1. :Go to next step. 
    8. NOTE:

    If the engine does not start, perform steps  10 and  12 first.

  8. PROBLEM SYMPTOM CONFIRMATION 
    PROBLEM SYMPTOM CONFIRMATION

    A Malfunction does not occur
    B Malfunction occurs
    1. B: GO TO STEP   10 
    2. A: Go to next step. 
  9. SYMPTOM SIMULATION 
    1. :Go to next step. 
  10. DTC CHECK (See  DTC CHECK/CLEAR  ) 
    DTC CHECK

    A Malfunction code
    B No code
    1. B: GO TO STEP   12 
    2. A: Go to next step. 
  11. PROCEED TO DTC CHART (See  DTC CHECK/CLEAR  ) 
    1. :Go to step   14 
  12. BASIC INSPECTION (See  BASIC INSPECTION  ) 
    BASIC INSPECTION

    A Wrong parts not confirmed
    B Wrong parts confirmed
    1. B: GO TO STEP   17 
    2. A: Go to next step. 
  13. PROCEED TO PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE  ) 
    PROBLEM SYMPTOM

    A Wrong circuit confirmed
    B Wrong parts confirmed
    1. B: GO TO STEP   17 
    2. A: Go to next step. 
  14. CHECK ECM POWER SOURCE CIRCUIT (See  ECM POWER SOURCE CIRCUIT  ) 
    1. :Go to next step. 
  15. CIRCUIT INSPECTION 
    CIRCUIT INSPECTION

    A Malfunction not confirmed
    B Malfunction confirmed
    1. B: GO TO STEP   18 
    2. A: Go to next step. 
  16. CHECK FOR INTERMITTENT PROBLEMS (See  CHECK FOR INTERMITTENT PROBLEMS  ) 
    1. :Go to step   18 
  17. PARTS INSPECTION 
    1. :Go to next step. 
  18. PROBLEM IDENTIFICATION 
    1. :Go to next step. 
  19. ADJUSTMENT AND/OR REPAIR 
    1. :Go to next step. 
  20. CONFIRMATION TEST 

    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.

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