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Home >> Toyota >> 2002 >> 4Runner Limited, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Transfer Case (Diagnosis) (VF3AM)) >> Component Tests >> Transfer Shift Actuator Motor Operation

Transfer Shift Actuator Motor Operation

WARNING: This page is about a different variant/trim than selected.
CAUTION: While testing the terminals be careful not to touch the neighboring terminals or metallic parts of relay housing.
NOTE: For circuit reference, see CONNECTOR IDENTIFICATION  and/or WIRING DIAGRAMS  .
  1. H4F (4WD and center differential lock "FREE") to H4L (4WD and center differential lock "LOCK") shift. Connect jumper wires from heater relay as shown, see Fig 1. Then ensure that the actuator fork shaft moves to H4F (4WD and center differential lock "FREE") to H4L (4WD and center differential lock "LOCK") position. See Fig 2.
  2. H4L (4WD and center differential lock "LOCK") to H4F (4WD and center differential lock "FREE") shift. Connect jumper wires from heater relay as shown, see Fig 1. Then ensure that the actuator fork shaft moves to H41 (4WD and center differential lock "LOCK") to H4F (4WD and center differential lock "FREE") position. See Fig 3.
  3. H4L (4WD and center differential lock "LOCK") to H2 (2WD) shift. Connect jumper wires from heater relay as shown, see Fig 1. Then ensure that the actuator fork shaft moves to H4L (4WD and center differential lock "LOCK") to H2 (2WD) position. See Fig 4.
  4. H2 (2WD) to H4L (4WD and center differential lock "LOCK") shift. Connect jumper wires from heater relay as shown, see Fig 1. Then ensure that the actuator fork shaft moves to H2 (2WD) H4L (4WD and center differential lock "LOCK") position. See Fig 5.
  5. If actuator does not operate as described, replace actuator.
Fig 1: Identifying Heater Main Relay Terminals
G00143203Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Testing Transfer Shift Actuator (1 Of 4)
G00148339Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 3: Testing Transfer Shift Actuator (2 Of 4)
G00148340Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 4: Testing Transfer Shift Actuator (3 Of 4)
G00148337Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 5: Testing Transfer Shift Actuator (4 Of 4)
G00148338Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002