2005 Toyota Matrix XR, FWD, StandardFACTORY OEM SERVICE PROCEDURE

Inspection Procedure

  1. CHECK OPERATION (OVERDRIVE) 
    1. Drive the vehicle after the engine warms up.
    2. Check that overdrive ON OFF occurs by an operation of the O/D switch ON OFF.
    1. NO: GO TO ELECTRONIC CONTROLLED AUTOMATIC TRANSMISSION [ECT] 

    YES: Go to next step 

  2. INSPECT TERMINAL VOLTAGE (OD) 
    1. Remove the cruise control ECU assy with the connector still connected.
    2. Turn the ignition switch to ON.
    3. Disconnect the cruise control ECU assy connector.
    4. Measure voltage between terminal 14 (OD) of harness side connector of cruise control ECU assy and body ground.

    OK: Go to next step 

    Voltage: 10-14V 

    Fig 1: Identifying Terminal (OD) Of Harness Side Connector Of Cruise Control ECU Assy
    G02679593Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: Go to step 

    OK: Go to next step 

  3. INSPECT TERMINAL VOLTAGE (ECT) 
    1. Connect the cruise control ECU assy connector.
    2. Perform the test drive after engine warms up.
    3. Check voltage between terminal 6 (ECT) of cruise control ECU assy connector and body ground when O/D switch is ON and OFF.

    OK: Go to next step 

    2ZZ-GE, 1ZZ-FE 4WD: 

    VOLTAGE SPECIFICATIONS 2ZZ-GE, 1ZZ-FE 4WD

    O/D Switch Position Voltage
    ON 8-16V
    OFF Below 0.5V

    1ZZ-FE FF: 

    VOLTAGE SPECIFICATIONS 1ZZ-FE FF

    O/D Switch Position Voltage
    ON Below 0.5 V
    OFF 8-16V
    1. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN (  PROBLEM SYMPTOMS TABLE  ) 

    NG: Go to next step 

    Fig 2: Identifying Terminal (ECT) Of Cruise Control ECU Assy Connector
    G02679594Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. CHECK HARNESS AND CONNECTOR (BETWEEN CRUISE CONTROL ECU ASSY AND ELECTRONICALLY CONTROLLED) 
    1. Check for open and short circuit in harness and connector between cruise control ECU assy and electronically controlled transmission solenoid (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

    CHECK AND REPLACE CRUISE CONTROL ECU ASSY (See  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 

  5. CHECK HARNESS AND CONNECTOR (BETWEEN CRUISE CONTROL ECU ASSY AND ECM) 
    1. Check for open and short circuit in harness and connector between cruise control ECU assy and ECM (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).
    1. NG: REPAIR OR REPLACE HARNESS OR" CONNECTOR 

    OK: Go to next step 

    CHECK AND REPLACE CRUISE CONTROL ECU ASSY (See  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 

Factory Service Tools

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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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