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.
Powertrain Control Module
PCM receives information from various input devices and uses this information to control solenoids on transaxle valve body for transaxle shifting, shift feel and torque converter clutch engagement.
PCM automatically switches from NORMAL mode to POWER mode corresponding to driving condition in "D" range. Upshifts and downshifts are performed at a higher speed in POWER mode than in NORMAL mode.
PCM contains a self-diagnostic system, which will store DTCs if a failure or problem exists in electronic control system. DTC can be retrieved to determine problem area. See RETRIEVING DIAGNOSTIC TROUBLE CODES under DIAGNOSIS & TESTING. PCM is located under center of instrument panel, in front of center console.
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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.