Engine Control System (2GR-FE) - System And Component Testing, Removal, Inspection And Installation: ECM: Removal

NOTE: Before removing the tire pressure warning ECU, read the registered transmitter IDs of all wheels and write them down to use for re-registration of transmitter IDs (See REGISTRATION ).

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: When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See INITIALIZATION ).
REMOVE FRONT DOOR SCUFF PLATE RH
HINT:

Use the same procedure for the RH side and the LH side (See REMOVAL ).
REMOVE COWL SIDE TRIM SUB-ASSEMBLY RH
HINT:

Use the same procedure for the RH side and the LH side (See REMOVAL ).
REMOVE NO. 2 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY (See REMOVAL )
REMOVE LOWER INSTRUMENT PANEL SUB-ASSEMBLY (See REMOVAL )
REMOVE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Smart Key System) (See REMOVAL )
REMOVE TIRE PRESSURE WARNING ECU (See INSTALLATION )
REMOVE ECM
1. Separate the harness connector.
2. Disconnect the 5 ECM connectors.
3. Remove the wire harness clamp.
4. Remove the 2 nuts, bolt and ECM.
  
  Fig 1: Locating ECM With Nuts And Bolt
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE NO. 1 ECM BRACKET
1. Remove the 2 screws and No. 1 ECM bracket.
  
  Fig 2: Locating No. 1 ECM Bracket Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE NO. 2 ECM BRACKET
1. Remove the 2 screws and No. 2 ECM bracket.
  
  Fig 3: Locating No. 2 ECM Bracket Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002