2007 Toyota FJ Cruiser RWDFACTORY OEM SERVICE PROCEDURE

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 ).
  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
  2. REMOVE GLOVE COMPARTMENT DOOR ASSEMBLY  (See REMOVAL )
  3. 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
      G05109016Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. REMOVE ECM 
    1. Disconnect the 5 connectors.
    2. Remove the 3 nuts, then remove the ECM.
      Fig 2: Identifying ECM Nuts
      G05109017Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. REMOVE ECM BRACKET 
    1. Remove the 2 screws, then remove the ECM bracket.
      Fig 3: Identifying ECM Bracket Screws
      G05109018Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. 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
      G05109019Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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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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