Front Wiper Motor: Inspection

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Ensure that fingers or articles of clothing do not get caught in moving parts when performing this test.

INSPECT WINDSHIELD WIPER MOTOR ASSEMBLY
1. Check the LO operation.
  1. Connect a positive (+) battery lead to terminal 1 (+1) of the connector, and a negative (-) battery lead to terminal 5 (E), and check that the motor operates at low speed (LO).
    OK: Motor operates at low speed (LO).
    
    If the result is not as specified, replace the motor assembly.
2. Check the HI operation.
  1. Connect a positive (+) battery lead to terminal 4 (+2) of the connector, and a negative (-) battery lead to terminal 5 (E), and check that the motor operates at high speed (HI).
    OK: Motor operates at high speed (HI).
    
    If the result is not as specified, replace the motor assembly.
    
    Fig 1: Identifying Windshield Wiper Motor Assembly Connector Terminal
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check the automatic stop operation.
  1. Connect a positive (+) battery lead to terminal 1 (+1) of the connector and a negative (-) battery lead to terminal 5 (E). With the motor operating at low speed (LO), disconnect terminal 1 (+1) to stop the wiper motor operation at any position other than the automatic stop position.
  2. Using SST, connect terminals 3 (+S) and 1 (+1). Then connect a positive (+) battery lead to terminal 2 (B) of the connector to restart the motor operation at low speed (LO).
    SST 09843-18040
  3. Check that the motor stops automatically at the automatic stop position
    OK: Refer to the illustration.
    
    If the result is not as specified, replace the motor assembly.
    
    Fig 2: Identifying Direction Of Motor Rotation
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002