Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2009 Toyota Matrix Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Engine Control System (2ZR-FE): ECM: Removal

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
REMOVE AIR CLEANER CAP SUB-ASSEMBLY WITH HOSE (See REMOVAL )
REMOVE AIR CLEANER CASE (See REMOVAL )
REMOVE ECM
1. Separate the wire harness clamp.
  
  Fig 1: Locating Wire Harness Clamp
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the 2 ECM connectors.
  1. Push the locks on the 2 levers, then raise the levers, and disconnect the 2 ECM connectors.
    NOTE: After disconnecting the connectors, make sure that dirt, water or other foreign matter does not contact the connecting parts of the connectors.
3. Remove the 3 bolts and the ECM.
  
  Fig 2: Locating Bolts And ECM
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Remove the 4 screws and 2 ECM brackets.
  
  Fig 3: Locating Screws And ECM Brackets
  Courtesy 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.