2007 Lexus LS 460LFACTORY OEM SERVICE PROCEDURE

Skid Control Ecu: Installation

NOTE: While the battery is connected, even if the engine switch is off, the brake control system activates when the brake pedal is depressed or the door courtesy switch turns on. Therefore during servicing of the brake system components, do not operate the brake pedal and open/ close the doors while the battery is connected.
  1. INSTALL SKID CONTROL ECU BRACKET 
    1. Install the bracket with the bolt and 2 nuts.

      Torque: 8.5 N*m (87 kgf*cm, 75 in.*lbf) 

      Fig 1: Identifying Skid Control ECU Bracket With Bolts
      G04949785Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSTALL SKID CONTROL ECU 
      Fig 2: Identifying Skid Control ECU Connector
      G04949787Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Connect the 2 connectors (labeled A) and press the lock levers down to lock the connectors.
      NOTE: Make sure that the lock levers securely lock the connectors.
    2. Connect the connector (labeled B).
    3. Install the ECU with the 2 bolts (labeled C) and nut (labeled D).
      Fig 3: Identifying Skid Control ECU Connector
      G04949788Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Torque: 8.5 N*m (87 kgf*cm, 75 in.*lbf) 

    4. Connect the short connector for the brake stroke simulator (labeled E) to the bracket of the skid control ECU.
  3. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL 
  4. INSTALL COWL TOP VENTILATOR LOUVER RH  (See INSTALLATION )
  5. CHECK AND CLEAR DTC 
    1. Check and clear the DTCs (see DTC CHECK/CLEAR  ).
  6. PERFORM LINEAR VALVE OFFSET LEARNING 
    1. When the skid control ECU is replaced, perform the linear valve offset learning (see INITIALIZATION  ).
  7. PERFORM YAW RATE SENSOR ZERO POINT CALIBRATION 
    1. Perform the yaw rate sensor zero point calibration (see CALIBRATION  ).
  8. PERFORM TEST MODE INSPECTION 
    1. Perform the test mode inspection (see TEST MODE PROCEDURE  ).
  9. PERFORM INITIALIZATION 
    1. Perform initialization (see INITIALIZATION ).
      NOTE: Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.
  10. INSTALL ENGINE ROOM SIDE COVER LH  (See INSTALLATION )
  11. INSTALL V-BANK COVER SUB-ASSEMBLY  (See INSTALLATION )
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.

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