GM Cavalier/Sunbird/Skyhawk/Firenza 1982-1994

General Description

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See Figures 1, 2, 3, 4 and 5

These models are equipped with an electronic/vacuum cruise control system which maintains a desired vehicle speed under normal driving conditions. The main components of the system are the mode control switches, controller (module), sevo unit, speed sensor, vacuum supply, electrical and vacuum release switches along with an electrical harness.



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Fig. Fig. 1: View of the brake pedal switches - 1992 vehicle shown



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Fig. Fig. 2: Cruise control switch mounting on the clutch pedal - 1992 vehicle shown

The cruise control release switch and stop lamp switch assemblies are used to disengage the system. Both switches are mounted on the brake pedal bracket. The system disengages electronically when the pedal is depressed.



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Fig. Fig. 3: View of the VSS mounting - manual transaxle shown

The vehicle speed sensor (VSS) buffer assembly receives a signal form the VSS permanent magnet generator indicating the speed of the vehicle. The signal is then processed by the speed sensor and supplied to the ECM, cruise control module and speedometer. The VSS is usually mounted to the transaxle assembly.



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Fig. Fig. 4: Cruise control mounting - 1994 vehicle shown



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Fig. Fig. 5: Cruise control servo mounting - 1992 vehicle shown

The cruise control module location may be located in different areas on some models and engines. The module is usually mounted in the lower left front area near the kickpanel left of the steering wheel, under the steering wheel on the filler panel or above the glove box area to the right side of the vehicle. The module is not serviceable.

The cruise control engagement switch is part of the turn signal lever assembly and is not serviceable by itself. The switch is used to start or disengage the cruise control system. The turn signal lever and cruise control switch must be replaced as an assembly. Refer to the necessary service procedures in Suspension & Steering .

 
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