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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 638 (ENGINE CONTROL SYSTEM (SFI) (1MZ-FE/3MZ-FE))ECM (1MZ-FE/3MZ-FE)REPLACEMENT
2004 Toyota Matrix XR, FWD, Standard

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

2004 Toyota Matrix XR, FWD, StandardSECTION Replacement
WARNING: This page is about a different car, the 2004 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.
  1. DISCONNECT BATTERY NEGATIVE 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. 1 (See  INSTRUMENT PANEL SAFETY PAD SUB-ASSY (FROM JULY, 2003)  ) 
  5. REMOVE INSTRUMENT PANEL SUB-ASSY LOWER (See  INSTRUMENT PANEL SAFETY PAD SUB-ASSY (FROM JULY, 2003)  ) 
  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: Removing ECM
      G02892187Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE ECM BRACKET 
    1. Remove the 2 screws and ECM bracket.
      Fig 2: Removing ECM Support Bracket
      G02892188Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE ECM BRACKET NO. 2 
    1. Remove the 2 screws and ECM bracket.
      Fig 3: Removing Screws And ECM Bracket (No. 2)
      G02892189Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. INSTALL ECM BRACKET NO. 2 
    1. Install the ECM bracket with the 2 screws.
      Fig 4: Installing ECM To Support Bracket (No. 2)
      G02892190Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. INSTALL ECM BRACKET 
    1. Install the ECM bracket with the 2 screws.
      Fig 5: Installing ECM Bracket
      G02892191Courtesy 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: Installing ECM
      G02892192Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. INSTALL INSTRUMENT PANEL SUB-ASSY LOWER (See  INSTRUMENT PANEL SAFETY PAD SUB-ASSY (FROM JULY, 2003)  ) 
  13. INSTALL INSTRUMENT PANEL UNDER COVER SUB-ASSY NO. 1 (See  INSTRUMENT PANEL SAFETY PAD SUB-ASSY (FROM JULY, 2003)  ) 
  14. INSTALL COWL SIDE TRIM SUB-ASSY RH (See  INSTRUMENT PANEL SAFETY PAD SUB-ASSY (FROM JULY, 2003)  ) 
  15. INSTALL FRONT DOOR SCUFF PLATE RH (See  INSTRUMENT PANEL SAFETY PAD SUB-ASSY (FROM JULY, 2003)  ) 
  16. CONNECT BATTERY NEGATIVE TERMINAL 
RENDER: 1.0x

NO RELATED

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

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  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.