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.
Removal & Installation (Except Diesel)
Service of the Powertrain Control Module (PCM) should normally consist of either replacement of the PCM or electrically erasable programmable read only memory (EEPROM) programming. If diagnostic procedures call for PCM to be replaced, PCM should be inspected first to see if the correct part is being used. If the correct part is being used, remove faulty PCM and install new service PCM.
Ensure ignition switch is in OFF position. Remove air cleaner assembly. Disconnect PCM harness connectors. Release spring latch from PCM. Lift PCM from mounting tray. See Fig 1 . Remove PCM from engine compartment. To install, reverse removal procedure. Tighten PCM connector end fasteners to 71 INCH lbs. (8 N.m). Program as necessary. See PROGRAMMING .
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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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