Cruise control systems are being discussed. Technician A says the cruise control system uses a governor valve operated by automatic transmission fluid [ATF] pressure to control the throttle. Technician B says vehicles that use electronic throttle control [throttle by wire] do not require a separate cruise control module, stepper motor, or cable to control engine speed. Who is correct?

Question

Quizplus · Accepted Answer

Technician B is correct because vehicles with electronic throttle control manage engine speed through the engine control unit, eliminating the need for separate components like a cruise control module or stepper motor. Technician A is incorrect as modern cruise control systems do not use a governor valve operated by ATF pressure.

Cruise Control Systems Are Being Discussed