Engine Control Module (ECM) Removal and Installation

CAUTION:

As ECM consists of precision parts, be careful not to expose it to excessive shock.

Removal

1) Disconnect battery negative cable at battery.
2) Disable air bag system, refer to Disabling Air Bag System.
3) Remover glove box, referring to Step 4) in Instrument Panel Removal and Installation.
4) Remove instrument panel passenger lower member (1).

5) Remove right side dash side trim.
6) Disconnect instrument panel harness connectors clamp, engine harness connectors (1) and floor harness connector (2).
7) Remove ground wire harness (3).

8) Disconnect connectors (1) from ECM while releasing connectors lock.
9) Remove ECM from body after removing its nuts (2).

NOTE:
Be careful not to damage ventilation duct.

Installation

Reverse removal procedure noting the following:

- Connect connectors to ECM securely until a click is heard.
- When installing each part, be careful not to catch any cable or wiring harness.
- Tighten body earth bolt securely.

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.

Safety Warning

Engine Control Module: Service and Repair

Use the Manual With the Right Hardware

When to See a Mechanic

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