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.
2004 Scion xA AutomaticFACTORY OEM SERVICE PROCEDURE
Section 717 (Engine Control System): ECM: Replacement
WARNING: This page is about a different car, the 2004 Scion xB. However, it is still accessible from the selected car via links, so may be relevant.
- REMOVE GLOVE COMPARTMENT DOOR ASSY (See  INSTRUMENT PANEL/METER )Â
- REMOVE ECMÂ
- Disconnect the 4 ECM connectors.
- Remove the 2 bolts, then remove the ECM.
- Remove the 2 screws and ECM bracket from the ECM.
- Remove the 2 screws and ECM bracket No. 2 from the ECM.
- Remove the 2 screws and ECM bracket No. 3 from the ECM.
- INSTALL ECMÂ
Torque: 3.0 N.m (31 kgf.cm, 27 in.lbf)Â
- INSTALL GLOVE COMPARTMENT DOOR ASSY (See  INSTRUMENT PANEL/METER )Â
Factory Service Tools
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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.