Steering Control Ecu: Installation

WARNING: This page is about a different car, the 2006 Lexus GS 430 and 2006 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.

INSTALL STEERING CONTROL ECU
1. Install the steering control ECU with the 3 screws.
  HINT:
  - Align positioning boss (A) of the blower assembly with the hole of the steering control ECU.
  - Securely engage the hook (B) of the steering control ECU with the blower assembly.
    
    Fig 1: Installing Steering Control ECU With 3 Screws
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Connect the 3 connectors to the steering control ECU.
INSTALL INSTRUMENT PANEL UNDER COVER SUBASSEMBLY NO.2 (See INSTALLATION )
CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
PERFORM INITIALIZATION
Some systems need initialization when disconnecting the cable from the negative battery terminal (see INITIALIZATION ).
PERFORM VARIABLE GEAR RATIO STEERING SYSTEM CALIBRATION
(See INITIALIZATION )

Fig 2: Connecting 3 Connectors To Steering Control ECU
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002