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.
Control Units
/T) On underside of right front footrest. See Figure. Engine Control Module (ECM) (3.0L) On underside of right front footrest. See Figure. Integrated Control Unit On rear of underdash fuse/relay box. See Figure. Interlock Control Unit (A/T) Behind left side of dash. See Figure. Keyless/Security Control Unit Below front passenger's seat. See Figure. Moon Roof Control Unit On center rear underside of roof. Powertrain Control Module (PCM) (2.2L A/T) On underside of right front footrest. See Figure. Power Seat Control Unit On underside of driver's seat. Radiator Fan Control Module Behind right side of dash. See Figure. SRS Unit Below center of dash. See Figure. Transmission Control Module (TCM) (3.0L) On underside of right front footrest. See Figure.
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:
- • 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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