Cruise Control Switch: Description and Operation

A stalk extending from the right side of the steering wheel hub. It rotates with the steering wheel.The switch cannot be repaired. If the switch fails, the entire switch module must be replaced.

The speed control system has five separate voltage inputs that are provided from a single multiplexed (MUX) switch that supply's differant voltage inputs to the PCM. The switch names are: ON, OFF, SET, COAST, RESUME, ACCEL, and CANCEL. Based on conditions when the buttons or lever is pushed or pulled (and released), the five voltages ranges provided to the PCM result in the following functions:
ON, OFF, SET, COAST, RESUME, ACCEL, and CANCEL.

All the functions are included, but they operation of the switch is different then most other applications. A push button in the end of the stalk toggles the system voltage between turning the speed control system ON (for the first press) and OFF (for the second press). The Word Cruise will then illuminate on the cluster. Pushing the stalk down sets the cruise to maintain the current vehicle speed and is set into memory. Holding the stalk down allows the vehicle to coast to a lower speed. Pushing the stalk up causes the vehicle to resume the previously set speed that is set in memory. Holding it in the up position causes the vehicle speed to increase until the switch is released or the maximum allowable set speed is reached. Pulling the stalk toward the steering wheel cancels the operation of the speed control, allowing the vehicle to coast, but retaining the set speed in memory. Moving the stalk up momentarily causes the set speed to in crease by 2 mph (3.2 kph). Repeated movement of the stalk in the same direction has a cumulative effect on the set speed. The minimum set speed is reduced to 25 mph (40 kph) and a maximum set speed is 85 mph (137 kph).