2005 Toyota Avalon LimitedFACTORY OEM SERVICE PROCEDURE

ECM (2GR-FE): Replacement

  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
  2. REMOVE FRONT DOOR SCUFF PLATE RH (SEE  REPLACEMENT  ) 
  3. REMOVE COWL SIDE TRIM SUB-ASSY RH (SEE  REPLACEMENT  ) 
  4. REMOVE INSTRUMENT PANEL UNDER COVER SUB-ASSY NO. 2 (SEE  REPLACEMENT  ) 
  5. REMOVE GLOVE COMPARTMENT DOOR ASSY (SEE  REPLACEMENT  ) 
  6. REMOVE ECM 
    1. Disconnect the 5 connectors from the ECM.
    2. Remove the 2 nuts, bolt and ECM.
    3. Remove the 2 screws to separate the ECM bracket from the ECM.
    4. Remove the 2 screws to separate the ECM bracket No.2 from the ECM.
      Fig 1: Removing ECM
      G02973305Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. INSTALL ECM 
    1. Install the ECM bracket No.2 to the ECM with the 2 screws.
    2. Install the ECM bracket to the ECM with the 2 screws.
    3. Install the ECM with the 2 nuts and bolt.

      Torque: 5.5 N.m (56 kgf.cm, 49 in. lbf) 

    4. Connect the 5 connectors to the ECM.
  8. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL 
  9. INSTALL GLOVE COMPARTMENT DOOR ASSY 
  10. INSTALL INSTRUMENT PANEL UNDER COVER SUB-ASSY NO. 2 
  11. INSTALL COWL SIDE TRIM SUB-ASSY RH 
  12. INSTALL FRONT DOOR SCUFF PLATE RH 
  13. RESET MEMORY (see  INITIALIZATION  ) 
  14. PERFORM INITIALIZATION (SEE  INITIALIZATION  ) 

    Some systems need initialization when disconnecting the battery terminal.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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