LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2004 >> IS 300 Base, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission >> Shift Lock System >> Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Shift Lock System: Inspection

  1. INSPECT SHIFT LOCK CONTROL ECU 

    Using a voltmeter, measure the voltage at each terminal.

    HINT:

    Do not disconnect the shift lock control ECU connector.

    Fig 1: Inspecting Shift Lock Control ECU
    G00894497Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 2: Shift Lock Control ECU Voltage Table
    G00894498Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT SHIFT LOCK SOLENOID 
    1. Disconnect the solenoid connector.
    2. Using an ohmmeter, measure resistance between terminals.

      If resistance value is not as specified, replace the solenoid.

    3. Check the solenoid operating sound when connecting the battery positive terminal to 5 (SLS+) and battery negative terminal to 4 (SLS-).

      If the solenoid does not operate, replace the solenoid.

      Fig 3: Inspecting Shift Lock Solenoid
      G00894499Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSPECT KEY INTERLOCK SOLENOID 
    1. Disconnect the solenoid connector.
    2. Using an ohmmeter, measure resistance between terminals.

      If resistance valve is not as specified, replace the solenoid.

    3. Check the solenoid operating sound when connecting the battery positive terminal to 4 (KLS+) and battery negative terminal to 3 (KLS-).

      If the solenoid does not operate, replace the solenoid.

      Fig 4: Inspecting Key Interlock Solenoid
      G00894500Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSPECT SHIFT LOCK CONTROL SWITCH 
    1. Disconnect the shift lock control switch.
    2. Inspect that continuity exists between each terminal.
      Fig 5: Shift Lock Control Switch Continuity Table
      G00894501Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 6: Inspecting Shift Lock Control Switch
      G00894502Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002