Engine Control System: ECM: Removal

NOTE:

Perform the RESET MEMORY (AT initialization) when replacing the automatic transmission assembly, engine assembly or ECM (See INITIALIZATION ).
Perform the REGISTRATION (VIN registration) when replacing the ECM (See REGISTRATION ).
If the ECM has been replaced or RESET MEMORY (AT initialization) has been performed, set up the function of the ATF (Automatic Transmission Fluid) temperature warning lamp (See INITIALIZATION ).

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
REMOVE GLOVE COMPARTMENT DOOR ASSEMBLY (See REMOVAL )
REMOVE FOUR WHEEL DRIVE CONTROL ECU (for Automatic Transmission 4WD)
1. Disconnect the connector.
2. Remove the screw and four wheel drive control ECU.
  
  Fig 1: Identifying Screw & Four Wheel Drive Control ECU
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE ECM
1. Disconnect the 5 connectors.
2. Remove the 3 nuts, then remove the ECM.
  
  Fig 2: Identifying ECM Nuts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE ECM BRACKET
1. Remove the 2 screws, then remove the ECM bracket.
  
  Fig 3: Identifying ECM Bracket Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE NO. 2 ECM BRACKET
1. Remove the 2 screws, then remove the No. 2 ECM bracket.
  
  Fig 4: Identifying No. 2 ECM Bracket Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002