Transfer Shift Actuator Motor Operation

WARNING: This page is about a different car, the 2002 Toyota Tundra and 2001 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For circuit reference, see CONNECTOR IDENTIFICATION and/or WIRING DIAGRAMS .

Connect heater main relay between actuator connector and battery. See Fig 1 and Fig 2 . Actuator shaft fork should move to 2WD to 4H position. Connect heater main relay between actuator connector and battery. See Fig 1 and Fig 3 . Actuator shaft fork should move from 4H to 2WD position. Connect heater main relay between actuator connector and battery. See Fig 1 and Fig 4 . Actuator shaft fork should move from 4H to 4L position. Connect heater main relay between actuator connector and battery. See Fig 1 and Fig 5 . Actuator shaft fork should move from 4L to 4H position. If actuator does not operate as described, replace actuator.

Fig 1: Identifying Heater Main Relay Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Testing Transfer Shift Actuator (4H To 2WD Position)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: Testing Transfer Shift Actuator (4H To 4L Position)

Fig 4: Testing Transfer Shift Actuator (4H To 4L Position)

Fig 5: Testing Transfer Shift Actuator (4L To 4H Position)