Motor Shift Control System: Inspection

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

Inspect switch position .
1. Start the engine, and shift the transfer shift lever to the "H" position.
2. Check that the center diff. indicator light comes on when the switch is in "ON" position. Check that the light goes off when the switch is in "OFF position.
  
  Fig 1: Checking Center Diff. Indicator Light Switch Operation
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Inspect shift lever position .
1. Start the engine, and turn the center diff. lock switch to OFF.
2. Check that the center diff. indicator light comes on when the transfer shift lever is shifted to the "L" position. Check that the light goes off when the lever is shifted to the "N" or "H" position.
  
  Fig 2: Checking Center Diff. Indicator Light When Shifting
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Inspect center diff. lock control relay .
1. Check that continuity exists between each terminal, as shown in Fig 4.
  
  Fig 4: Identifying Control Relay Continuity Specifications
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If no continuity exists, check that continuity exists when changing the position of + probe for the position of negative - probe of tester.
2. Apply battery positive voltage between each terminal and check that continuity exists between each terminal, as shown in Fig 5.
  
  Fig 5: Identifying Control Relay Continuity Specifications
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If continuity is not as specified, replace the relay.
Inspect actuator operation .
1. Raise up the front wheels, place the stopper under the rear wheels to block them, and pull up the parking brake.
2. Disconnect the connector of the actuator and connect it to the relay using wire.
  
  Fig 6: Inspecting Actuator Operation
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check that the front propeller shaft can be rotated by hand.
  
  Fig 7: Identifying Actuator Operation Specifications
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NOTE: When inspecting the operation described in step 4, use a heater main relay.
  
  Fig 8: Identifying Heater Main Relay Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  CAUTION: Connect the terminals being careful not to touch the neighboring terminals or metallic parts of relay housing.
Inspect motor actuator (motor) .
1. Remove the motor actuator. See DISASSEMBLY .
  
  Fig 9: Identifying Motor Side Actuator Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance between the terminals 1 and 5.
  Standard resistance: 0.3 - 100 Ohms
3. Measure the resistance between the terminals 1 or 5 and body ground.
  Standard resistance: More than 0.5 M/Ohms
  
  If the resistance value is not as specified, replace the motor actuator.
Inspect center diff. lock switch continuity .
1. Remove the center diff. lock switch. See DISASSEMBLY .
  
  Fig 10: Identifying Center Diff. Lock Switch Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Inspect the continuity between each terminal.
  
  Fig 11: Checking Continuity Between Each Terminal
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Inspect transfer indicator switch continuity .
1. Remove the 3 transfer indicator switches. See DISASSEMBLY .
2. Check that continuity exists between terminals 1 and 2 when pushing the ball at the tip of the switch.
  
  Fig 12: Checking Continuity Between Terminals 1 & 2
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002