Blower Motor Control Relay: Inspection

WARNING: This page is about a different car, the 2004 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.

REMOVE GLOVE COMPARTMENT DOOR (See REMOVAL )
REMOVE BLOWER MOTOR CONTROL RELAY
1. Disconnect the connectors.
2. Remove the screw and blower motor control relay.
  
  Fig 1: Removing 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 Fig 2 .
1. Test conditions:
  - Turn ignition switch to ON
  - Operate blower motor (High blower speed)
Fig 2: Inspecting Blower Motor Control Circuit (Table) (1 Of 2)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If resistance is not as specified, replace the blower motor control relay.

Fig 3: Inspecting Blower Motor Control Circuit (2 Of 2)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSTALL BLOWER MOTOR CONTROL RELAY
1. Install the blower motor control relay with the screw.
2. Connect the connectors.
INSTALL GLOVE COMPARTMENT DOOR (See INSTALLATION )

Fig 4: Installing Blower Motor Control Relay
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002