Engine Control System (1UR-FSE) - Circuit Tests And Repair Information: ECM: Removal

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION: Wait for 90 seconds after disconnecting the cable to prevent the airbag working.

NOTE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See INITIALIZATION ).
REMOVE COOL AIR INTAKE DUCT SEAL (See REMOVAL )
REMOVE ENGINE ROOM SIDE COVER LH (See REMOVAL )
REMOVE V-BANK COVER SUB-ASSEMBLY (See REMOVAL )
REMOVE ENGINE ROOM ECU COVER
1. Remove the 3 bolts and engine room ECU cover.
  NOTE:
  - Wipe off any water on or around the engine room ECU cover.
  - Perform this step in a dry place away from rain, etc.
  - Do not allow water to enter the ECM through its connectors, screws, etc.
DISCONNECT WIRE HARNESS
1. Detach the claw and disconnect the No. 4 connector holder.
  
  Fig 1: Disconnecting No. 4 Connector Holder
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the 6 ECM connectors.
  
  Fig 2: Locating ECM Connectors
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE ECM
1. Remove the 2 nuts and ECM.
  
  Fig 3: Locating Nuts And ECM
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002