Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 400 (2002 AIR CONDITIONING)BLOWER MOTOR CONTROL RELAYINSPECTION

2004 Toyota Matrix XR, FWD, Standard

Blower Motor Control Relay: Inspection

2004 Toyota Matrix XR, FWD, StandardSECTION Inspection

WARNING: This page is about a different car, the 2002 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.

Remove Glove Compartment Door (See REMOVE GLOVE COMPARTMENT DOOR )
Remove Blower Motor Control Relay
1. Disconnect the connectors.
2. Remove the screw and blower motor control relay.
  
  Fig 1: Locating Blower Motor Control Relay
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Inspect Blower Motor Control Circuit
Inspect the wire harness side connector from the back side, as shown in the chart.
- Test conditions:
- Turn ignition switch to ON
- Operate blower motor (High blower speed)
  
  Fig 2: Reviewing Blower Motor Control Circuit Information
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If resistance is not as specified, replace the blower motor control relay.
Install Blower Motor Control Relay
1. Install the blower motor control relay with the screw.
  
  Fig 4: Installing Blower Motor Control Relay
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Connect the connectors.
Install Glove Compartment Door (SeeINSTALL GLOVE COMPARTMENT DOOR ).

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.