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.
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HOMESERVICE MANUALSCHEVROLET2005EQUINOX FWD V6-3.4L VIN FREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSELECTRONIC THROTTLE CONTROL MODULEDESCRIPTION AND OPERATION
2005 Chevrolet Equinox FWD V6-3.4L VIN F
Electronic Throttle Control Module: Description and Operation
2005 Chevrolet Equinox FWD V6-3.4L VIN FSECTION Description and Operation
THROTTLE ACTUATOR CONTROL MODULE
The throttle actuator control (TAC) module is the control center for the TAC system. The TAC system uses electronically erasable programmable read only memory (EEPROM) and is self-diagnosing. The TAC module provides diagnostic information to the powertrain control module (PCM) through a dedicated serial data line. The TAC achieves throttle positioning by providing a pulse width modulated (PWM) voltage to the TAC motor as directed by the PCM. The TAC module is not serviced and should be replaced with the throttle body assembly.
The throttle actuator control (TAC) module is the control center for the TAC system. The TAC system uses electronically erasable programmable read only memory (EEPROM) and is self-diagnosing. The TAC module provides diagnostic information to the powertrain control module (PCM) through a dedicated serial data line. The TAC achieves throttle positioning by providing a pulse width modulated (PWM) voltage to the TAC motor as directed by the PCM. The TAC module is not serviced and should be replaced with the throttle body assembly.
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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.