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 MANUALSMERCURY2009MILAN AWD L4-2.3LREPAIR AND DIAGNOSISCRUISE CONTROLDESCRIPTION AND OPERATION
2009 Mercury Milan AWD L4-2.3L
Cruise Control: Description and Operation
2009 Mercury Milan AWD L4-2.3LSECTION Description and Operation
Speed Control
The speed control system consists of the following components:
- Speed control switches
- Speed control deactivator switch (part of the stoplamp switch)
- Stoplamp switch
- Speed control indicator
- Clutch pedal speed control deactivator switch (manual transaxle)
- PCM
- Electronically-controlled throttle body
- Clockspring
The speed control system is controlled by the PCM. The speed control system is designed to maintain a selected vehicle speed between 40 km/h (25 mph) and the maximum limited vehicle speed. The speed control system is controlled by the steering wheel mounted switches (ON, OFF, SET+, SET-, and RESUME), the clutch pedal (manual transaxle), and the brake pedal. The steering wheel mounted switches are hardwired to the PCM.
It is normal for the engine rpm to increase slightly and then drop off slowly when the clutch pedal is applied during operation.
The speed control functions include:
- turning the speed control system on.
- setting and maintaining the desired vehicle speed.
- accelerating the vehicle speed.
- decelerating the vehicle speed.
- resuming the prior vehicle speed.
- turning the vehicle speed control system off.
RENDER: 1.0x
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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.