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 MANUALSBUICK1998LESABRE V6-3.8L VIN KREPAIR AND DIAGNOSISCRUISE CONTROLDESCRIPTION AND OPERATIONSYSTEM DESCRIPTIONCRUISE CONTROL MODULE
1998 Buick LeSabre V6-3.8L VIN K
Cruise Control Module
1998 Buick LeSabre V6-3.8L VIN KSECTION Cruise Control Module
The following components are contained in the cruise control module:
^ An electric controller
^ An electric stepper motor
The controller performs the following functions:
^ Monitors the vehicle speed
^ Operates the electric motor
In response to the controller, the motor moves a connecting strap that attaches to the cruise control cable. The cable moves the throttle linkage in order to vary the throttle position in order to maintain the desired cruise speed. The cruise control module contains a low speed limit which prevents the system engagement below a minimum speed of approximately 40 km/h (25 mph). The module is controlled by switches located on the multifunction lever. The cruise control is in the standby disabled mode until all of the conditions that are inconsistent with the cruise control operation are cleared.
The cruise control module is mounted on the cowl. The module is not serviceable.
^ An electric controller
^ An electric stepper motor
The controller performs the following functions:
^ Monitors the vehicle speed
^ Operates the electric motor
In response to the controller, the motor moves a connecting strap that attaches to the cruise control cable. The cable moves the throttle linkage in order to vary the throttle position in order to maintain the desired cruise speed. The cruise control module contains a low speed limit which prevents the system engagement below a minimum speed of approximately 40 km/h (25 mph). The module is controlled by switches located on the multifunction lever. The cruise control is in the standby disabled mode until all of the conditions that are inconsistent with the cruise control operation are cleared.
The cruise control module is mounted on the cowl. The module is not serviceable.
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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.