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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 756 (IGNITION SYSTEM)IGNITION SYSTEM (3MZ-FE)ON-VEHICLE INSPECTION
2004 Toyota Matrix XR, FWD, Standard

On-Vehicle Inspection

2004 Toyota Matrix XR, FWD, StandardSECTION On-Vehicle Inspection
WARNING: This page is about a different car, the 2004 Lexus ES 330. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: "Cold" and "Hot" in this section mean temperature of the coils themselves. "Cold" is from -10°C (14°F) to 50°C (122°F) and "Hot" is from 50°C (122°F) to 100°C (212°F).
  1. INSPECT IGNITION COIL AND SPARK TEST 
    1. Check the DTCs.
      NOTE: If a DTC is present, perform troubleshooting in accordance with a procedure for that DTC.
    2. Check that a spark occurs.
      1. Remove the 6 ignition coils (see REPLACEMENT  ).
      2. Using a spark plug wrench 16 mm, remove the 6 spark plugs.

        Torque: 25 N.m (250 kgf.cm, 18 ft.lbf) 

      3. Install the spark plugs to each ignition coil, then connect the ignition coil connectors.
      4. Disconnect the 6 fuel injector connectors.
      5. Ground the spark plugs.
      6. Check that the spark plug occurs at each spark plug while the engine is being cranked.
    NOTE:
    • Be sure to ground the spark plugs when checking.
    • Replace the ignition coil if physical impact is felt.
    • Do not crank the engine for more than 2 seconds.

    If a spark does not occur, perform the following test.

    1. SPARK TEST 
      1. NG: Go to next step. 
    2. CHECK CONNECTION OF IGNITION COIL CONNECTOR 
      1. NG: CONNECT SECURELY 
      2. OK: Go to next step. 
    3. REPLACE IT WITH NORMAL IGNITION COIL AND PERFORM SPARK TEST AGAIN 
      1. OK: REPLACE IGNITION COIL ASSY (See  REPLACEMENT   ) 
      2. NG: Go to next step. 
    4. CHECK POWER SUPPLY TO IGNITION COIL 
      1. Turn the ignition switch ON.
      2. Check that there is battery voltage at the ignition coil positive (+) terminal.
      1. NG: CHECK WIRE HARNESS (BETWEEN IGNITION (START) SWITCH ASSY AND IGNITION COIL ASSY 
      2. OK: Go to next step. 
    5. INSPECT VVT SENSOR (See  INSPECTION   ) 
      1. NG: REPLACE VVT SENSOR (See  REPLACEMENT   ) 
      2. OK: Go to next step. 
    6. INSPECT CRANKSHAFT POSITION SENSOR (See  INSPECTION   ) 
      1. NG: REPLACE CRANKSHAFT POSITION SENSOR (See  REPLACEMENT   ) 
      2. OK: Go to next step. 
    7. INSPECT IGT SIGNAL FROM ECM (See  TERMINALS OF ECM  ) 
      1. NG: REPLACE ECM (See  REPLACEMENT  ) 
      2. OK: Go to next step. 

    REPAIR WIRE HARNESS (BETWEEN IGNITION COIL ASSY AND IGNITION (START) SWITCH ASSY) 

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.