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.
2010 Toyota Matrix FWD L4-2.4L (2AZ-FE)FACTORY OEM SERVICE PROCEDURE
Installation
2AZ-FE ENGINE CONTROL: ECM: INSTALLATION
1. INSTALL ECM
(a) Install the 2 ECM brackets onto the ECM with the 4 screws.
(b) Install the ECM with the 3 bolts.
Torque : 8.0 Nm (82 kgf-cm, 71 in-lbf)
(c) Connect the 2 ECM connectors.
(1) Connect the 2 ECM connectors and lower the 2 levers.
NOTICE:
* When connecting the connectors, make sure that dirt, water or other foreign matter does not get caught between the connectors and other parts.
* Make sure that the 2 levers are securely locked.
(d) Install the wire harness clamp.
2. INSTALL AIR CLEANER CASE Installation
3. INSTALL AIR CLEANER CAP SUB-ASSEMBLY WITH HOSE Installation
4. INSTALL NO. 1 ENGINE COVER SUB-ASSEMBLY Installation
5. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
6. PERFORM INITIALIZATION
HINT
Initialization cannot be completed by only removing the cable from the battery.
(a) Perform Reset Memory (AT initialization) when replacing the ECM. (for Automatic Transaxle)
HINT
* Programming and Relearning (for U250E)
* (for U140F)
(b) Perform Registration (VIN registration) when replacing the ECM Programming and Relearning.
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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