LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2008 >> IS 250 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (4GR-FSE) - System And Component Testing, On-Vehicle Inspection, Removal, Inspection & Installation >> ECM >> Removal
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Control System (4GR-FSE) - System And Component Testing, On-Vehicle Inspection, Removal, Inspection & Installation: ECM: Removal

  1. REMOVE COOL AIR INTAKE DUCT SEAL  (See REMOVAL )
  2. REMOVE ENGINE ROOM SIDE COVER LH  (See REMOVAL )
  3. REMOVE ECM COVER 
    1. Remove the 3 bolts and ECM cover.
    NOTE:
    • Remove all water on and around the ECM cover.
    • Perform the inspection indoors to avoid rain.
    • Be sure to prevent water intrusion to the ECM (connectors and screw parts).
    Fig 1: Locating ECM Cover Bolts
    G05316278Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. REMOVE ECM 
    1. Disconnect the ECM connectors.
      1. Using a screwdriver, disconnect the connector holder.
      2. Disconnect the 6 ECM connectors.
      Fig 2: Disconnecting Connector Holder
      G05316279Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 2 nuts and ECM.
    Fig 3: Locating ECM Nuts
    G05316723Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002