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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 861 (AIR CONDITIONING SYSTEM - DIAGNOSIS)CIRCUIT INSPECTIONAIR VENT MODE DAMPER CONTROL SERVOMOTOR CIRCUITINSPECTION PROCEDURE
2004 Toyota Matrix XR, FWD, Standard

Inspection Procedure

2004 Toyota Matrix XR, FWD, StandardSECTION Inspection Procedure
WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
  1. Actuator check. 

    PREPARATION: 

    1. Set to the actuator check mode (See PRE-CHECK ).
    2. Press the UP switch and change to step operation.

    CHECK: 

    Press the UP switch in order and check the condition of air flow mode.

    OK: 

    The mode changes with the change in the temperature display, as shown in the table. 

    DISPLAY CODE AIR FLOW MODE

    Display Code Air Flow Mode
    0 - 3 FACE
    4 - 5 BI-LEVEL
    6 - 7 FOOT
    8 FOOT/DEF
    9 DEF
    1. OK : Proceed to next circuit inspection shown on problem symptoms table (See  PROBLEM SYMPTOMS TABLE  ). 
    2. NG : Go to next step. 
  2. Check air vent mode damper control step motor. 

    PREPARATION: 

    Remove air vent mode damper control step motor (See COOL AIR BY-PASS DAMPER CONTROL SERVOMOTOR ).

    CHECK: 

    Measure resistance between terminals 3 and other terminals.

    OK: 

    Resistance 

    Fig 1: Removing Air Vent Mode Damper Control Step Motor
    G03376787Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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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.