Power Steering Ecu: Removal

REMOVE ENGINE ROOM SIDE COVER
1. Remove the 4 clips and side cover.
REMOVE AIR CLEANER INLET COVER SUB-ASSEMBLY
1. Remove the 2 clips and inlet cover.
REMOVE COWL TOP VENTILATOR LOUVER RH (See REMOVAL )
DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.

NOTE: After the engine switch is turned off, the HDD navigation system requires approximately 6 minutes to record various types of memory and settings. As a result, after turning the engine switch off, wait 6 minutes or more before disconnecting the cable from the negative (-) battery terminal.
REMOVE POWER STEERING ECU

Fig 1: Identifying Power Steering ECU
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Release the locks of the 2 power steering ECU connectors A and B and disconnect the connectors.
2. Disconnect the connector C from the power steering ECU.
3. Remove the 4 bolts and detach the claw, and remove the power steering ECU.
  
  Fig 2: Locating Bolts, Claw And Power Steering ECU
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002