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ECM (1MZ-FE/3MZ-FE): Replacement

  1. DISCONNECT BATTERY NEGATIVE TERMINAL 
  2. REMOVE FRONT DOOR SCUFF PLATE RH (See step 17 on  REPLACEMENT  ) 
  3. REMOVE COWL SIDE TRIM SUB-ASSY RH (See step 16 on  REPLACEMENT  ) 
  4. REMOVE INSTRUMENT PANEL UNDER COVER SUB-ASSY NO. 1 (See step 14 on  REPLACEMENT  ) 
  5. REMOVE INSTRUMENT PANEL SUB-ASSY LOWER (See step 24 on  REPLACEMENT  ) 
  6. REMOVE ECM 
    1. Remove the 2 wire harness clamps.
    2. Disconnect the 5 ECM connectors.
    3. Remove the 2 nuts and ECM.
    Fig 1: Identifying ECM Wire Harness Clamps And Nuts
    G04391323Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE ECM BRACKET 
    1. Remove the 2 screws and ECM bracket.
    Fig 2: Removing ECM Bracket Screws
    G04391324Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE ECM BRACKET NO. 2 
    1. Remove the 2 screws and ECM bracket.
    Fig 3: Removing ECM Bracket No. 2 Screws
    G04391325Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. INSTALL ECM BRACKET NO. 2 
    1. Install the ECM bracket with the 2 screws.
    Fig 4: Installing ECM Bracket No. 2 Screws
    G04391326Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. INSTALL ECM BRACKET 
    1. Install the ECM bracket with the 2 screws.
    Fig 5: Installing ECM Bracket Screws
    G04391327Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. INSTALL ECM 
    1. Install the 2 wire harness clamps.
    2. Connect the 5 ECM connectors.
    3. Install the ECM with the 2 nuts.

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

    Fig 6: Identifying ECM Wire Harness Clamps And Nuts
    G04391328Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. INSTALL INSTRUMENT PANEL SUB-ASSY LOWER (See  REPLACEMENT  ) 
  13. INSTALL INSTRUMENT PANEL UNDER COVER SUB-ASSY NO. 1 (See  REPLACEMENT  ) 
  14. INSTALL COWL SIDE TRIM SUB-ASSY RH (See  REPLACEMENT  ) 
  15. INSTALL FRONT DOOR SCUFF PLATE RH (See  REPLACEMENT  ) 
  16. CONNECT BATTERY NEGATIVE TERMINAL 
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