Blower Motor Linear Controller (Auto A/C): Inspection

Remove Glove Compartment Parts. See Figure.
Remove Blower Motor Linear Controller
1. Disconnect the connector.
2. Remove the 2 screws and blower motor linear controller.
  
  Fig 1: Locating Screws To Remove Blower Motor
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Inspect Blower Motor Linear Controller Circuit
1. Disconnect the connector from the relay and inspect the connector on wire harness side, as shown in the chart below.
  1. Test condition: Ignition switch ON
    
    Fig 3: Displaying Blower Motor Connection Based On Conditions
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    If the circuit is as specified, try to replace the controller with a new one. If the circuit is not as specified, inspect the connected to other parts.
2. Connect the connector to the relay and inspect the wire harness connector from the back side, as shown in the chart below.
  1. Test condition: Ignition switch ON
    
    Fig 5: Displaying Blower Motor Connection Based On Conditions
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    If the circuit is as specified, try to replace the controller with a new one. If the circuit is not as specified, inspect the connected to other parts.
Install Blower Motor Linear Controller
1. Install the blower motor linear controller with the 2 screws.
2. Connect the connector.
Fig 6: Locating Screws To Install Blower Motor
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Install Glove Compartment Parts. See Figure.