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.
Throttle Actuator Control (TAC) Module
The TAC module receives inputs from Powertrain Control Module (PCM) through TAC serial data circuits and through driver-controlled inputs. By monitoring cruise control functional switches, TCC brake switch (A/T), cruise control brake switch (M/T), clutch switch, brakelight switch and throttle pedal position, TAC module commands throttle actuator motor to respond accordingly to maintain set cruising speed.
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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