2010 Toyota Matrix S, FWD, AutomaticFACTORY OEM SERVICE PROCEDURE

Engine Control System (2AZ-FE) (Service Information): ECM: Removal: Removal

  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
  2. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY  . Refer to REMOVAL - Step 11
  3. REMOVE AIR CLEANER CAP SUB-ASSEMBLY WITH HOSE  See step  3
  4. REMOVE AIR CLEANER CASE  . Refer to REMOVAL - Step 14
  5. REMOVE ECM 
    1. Separate the wire harness clamp.
      Fig 1: Locating Wire Harness Clamp
      GTY181973Courtesy 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.
        Fig 2: Disconnecting ECM Connectors
        GTY172851Courtesy 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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