2007 Lexus LX 470FACTORY OEM SERVICE PROCEDURE

On-Vehicle Inspection

  1. CHECK SHIFT LOCK CONTROL ECU 
    1. Measure the voltage of the connector.

      HINT:

      Do not disconnect the ECU connector.

      Fig 1: Identifying Shift Lock Control ECU Connector Terminals
      G05282775Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Voltage 

      VOLTAGE SPECIFICATION

      Tester Connection Condition Specified Condition
      Connector A
      3 (ACC) -10 (E) Ignition switch ACC 10 to 14 V
      4 (IG) - 10 (E) Ignition switch ON 10 to 14 V
      10 (E) - 11 (STP) Brake pedal depressed 10 to 14 V
      9 (KLS+) - 10 (E) Ignition switch ACC and shift lever on P Below 1 V
      Ignition switch ACC and shift lever not on 9
      Within approx. 1 second      		 7.5 to 10.5 V
      Ignition switch ACC and shift lever not on P
      After approx. 1 second      		 6 to 9 V
      Connector B
      5 (SLS+) - 4 (SLS-) Ignition switch ACC and shift lever not on P Below 1 V
      Ignition switch ON, brake pedal depressed and shift lever on P 8.5 to 13.5 V
      Ignition switch ON, brake pedal depressed and shift lever not on P Below 1 V
      3 (P1) - 2 (P) Ignition switch ON, brake pedal depressed and shift lever on P Below 1 V
      Ignition switch ON, brake pedal depressed and shift lever not on P 9 to 13.5 V
      2 (P) -1 (P2) Ignition switch ACC and shift lever on P 9 to 13.5 V
      Ignition switch ACC and shift lever not on P Below 1 V
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.