Engine Control System (Service Information): ECM: Removal: Removal

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
WARNING:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
REMOVE GLOVE COMPARTMENT DOOR . Refer to REMOVAL - Step 10
REMOVE ECM
1. Disconnect the wire harness clamp.
  
  Fig 1: Identifying ECM Connectors
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the 4 ECM connectors.
3. Remove the bolt, screw and ECM.
  
  Fig 2: Identifying Bolt, Screw And ECM Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002