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.
Electronic Control Module
The ECM monitors transaxle operation and contains a self-diagnostic system which stores DTCs if a transaxle electronic control system failure or problem exists. A malfunction Indicator Light (MIL) on instrument panel will illuminate to warn driver a malfunction has occurred. DTCs can be retrieved to determine transaxle problem area. See RETRIEVING DIAGNOSTIC TROUBLE CODES under SELF-DIAGNOSTIC SYSTEM.
ECM receives information from various input devices and uses this information to control shift solenoids and torque converter lock-up. To locate ECM, see Fig 1.
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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.