Blower Motor Control Relay: 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 ).