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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 685 (ENGINE CONTROL SYSTEM (SFI) (2AZ-FE) - DIAGNOSTICS)HOW TO PROCEED WITH TROUBLESHOOTING
2004 Toyota Matrix XR, FWD, Standard

How To Proceed With Troubleshooting

2004 Toyota Matrix XR, FWD, StandardSECTION How To Proceed With Troubleshooting
WARNING: This page is about a different car, the 2004 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.

The hand-held tester is used in steps 3, 4, 5, 7 and 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. CONNECT HAND-HELD TESTER TO DLC3 

    HINT:

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

    1. Go To Next Step. 
  4. CHECK DTC AND FREEZE FRAME DATA (See  DTC CHECK/CLEAR  ) 

    HINT:

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

    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. SETTING CHECK (TEST) MODE DIAGNOSIS (See  CHECK MODE PROCEDURE  ) 
    1. Go To Next Step. 
  8. PROBLEM SYMPTOM CONFIRMATION 

    HINT:

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

    MALFUNCTION OCCURS

    Malfunction does not occur A
    Malfunction occurs B
    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

    Malfunction code A
    No code B
    1. B: GO TO STEP   12 
    2. A : Go to next step 
  11. DTC CHART (See  DIAGNOSTIC TROUBLE CODE CHART  ) 
    1. B: GO TO STEP   14 
    2. A : Go to next step 
  12. BASIC INSPECTION (See  BASIC INSPECTION  ) 
    BASIC INSPECTION

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

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

    Malfunction not confirmed A
    Malfunction confirmed B
    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. IDENTIFICATION OF PROBLEM 
    1. Go To Next Step. 
  19. ADJUSTMENT, REPAIR 
    1. Go To Next Step. 
  20. CONFIRMATION TEST 
    1. END 
RENDER: 1.0x

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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.