Skid Control Ecu: Removal

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.

REMOVE ENGINE ROOM SIDE COVER LH (See REMOVAL )
REMOVE V-BANK COVER SUB-ASSEMBLY (See REMOVAL )
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 SKID CONTROL ECU
1. Disconnect the short connector for the brake stroke simulator (labeled A) from the bracket of the skid control ECU.
2. Remove the 2 bolts (labeled B), nut (labeled C) and ECU.
  
  Fig 1: Identifying Skid Control ECU Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Pull the 2 lock levers upward to release the locks and disconnect the 2 connectors (labeled D).
4. Disconnect the connector (labeled E).
  
  Fig 2: Disconnecting Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE SKID CONTROL ECU BRACKET
1. Remove the 2 nuts, bolt and bracket.
  
  Fig 3: Identifying Skid Control ECU Bracket With Bolts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002