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 Subaru Baja Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Engine Control Module: Removal

Disconnect battery ground cable.

Fig 1: Disconnecting Battery Ground Cable
Courtesy of SUBARU OF AMERICA, INC.
Remove lower inner trim of passenger side. Refer to REMOVAL , Lower Inner Trim.
Detach floor mat of passenger seat.
Remove protect cover.

Fig 2: Removing Lower Inner Trim Of Passenger Side
Courtesy of SUBARU OF AMERICA, INC.
Remove nuts (A) which hold ECM to bracket.
Remove clip (B) from bracket.

Fig 3: Removing Clip From Bracket
Courtesy of SUBARU OF AMERICA, INC.
Disconnect ECM connectors and take out ECM.

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.