Air Conditioning Unit: Inspection

2004 Toyota Matrix XR, FWD, StandardSECTION Inspection
WARNING: This page is about a different car, the 2002 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT EVAPORATOR 
    1. Check the fins for blockage.

      If the fins are clogged, clean them with compressed air.

      NOTE: Never use water to clean the evaporator.
    2. Check fitting for cracks for scratches.

    If necessary, repair or replace.

  2. INSPECT HEATER RADIATOR 

    Check the fins for blockage.

    If the fins are clogged, clean them with compressed air.

  3. INSPECT AIR MIX SERVOMOTOR OPERATION (See  DTC B1441/41 AIR MIX DAMPER CONTROL SERVOMOTOR CIRCUIT  )  .
  4. INSPECT AIR MIX DAMPER POSITION SENSOR (See  DTC B1431/31 AIR MIX DAMPER POSITION CIRCUIT  ) 
RENDER: 1.0x

NO RELATED

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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.