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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 740 (WIRELESS DOOR LOCK - DIAGNOSIS)PRE-CHECK
2004 Toyota Matrix XR, FWD, Standard

Section 740 (Wireless Door Lock - Diagnosis): Pre-Check

2004 Toyota Matrix XR, FWD, StandardSECTION Pre-Check
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.
  1. USING HAND-HELD TESTER 
    1. Hook up the hand-held tester to the DLC3.
    2. Monitor the ECU data by following the prompts on the tester screen.

    HINT: Hand-held tester has a "Snapshot" function which records the monitored data.

    Refer to the hand-held tester operator's manual for further details .

  2. DTC CLEAR 
    1. The DTCs and freeze frame data will be erased by either action. Operate the hand-held tester to erase the codes.
  3. DATA LIST 

    HINT: According to the DATA LIST displayed by the OBD II scan tool or hand-held tester, you can read the value of the switch, sensor, actuator and so on without parts removal. Reading the DATA LIST as a first step of troubleshooting is one of the method to shorten the labor time.

    1. Connect the OBD II scan tool or hand-held tester to the DLC3.
    2. Turn the ignition switch ON.
    3. According to the display on tester, read the ""DATA LIST".

      Standard (Body ECU): 

      Fig 1: Data List Chart (Body ECU)
      G01437345Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. ACTIVE TEST 

    HINT: Performing the ACTIVE TEST using the OBD II scan tool or hand-held tester allows the relay, VSV, actuator and so on to operate without parts removal. Performing the ACTIVE TEST as a first step of troubleshooting is one of the method to shorten the labor time.

    It is possible to display the DATA LIST during the ACTIVE TEST.

    1. Connect the OBD II scan tool or hand-held tester to the DLC3.
    2. Turn the ignition switch ON.
    3. According to the display on tester, perform the "ACTIVE TEST".

      Standard (Body ECU): 

      Fig 2: Active Test Chart (Body ECU)
      G01437346Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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.