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.
Pcm (ECM/TCM)
The ESP sends request data, such as torque reduction, the number of fuel cut cylinders, and the ESP (ESC) control request, to the PCM (ECM & TCM) through CAN bus line. The PCM (ECM) conducts the fuel cut according to the request from the ESP and then retards ignition timing. The PCM (TCM) maintains current gear position during the ESP (ESC) control in order to prevent a Kick down shift.
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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.