Speed Control Switches

WARNING: This page is about a different car, the 2011 Jaguar XKR, 2011 Jaguar XK, 2010 Jaguar XKR, and 2010 Jaguar XK. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of JAGUAR CARS, INC.

Item Number	Description
1	Set speed adjustment switch
2	CANCEL switch
3	RESUME switch

There are three standard speed control switches:

Set speed adjustment switch
Cancel
Resume.

The standard speed control switches are located on the right-hand (RH) side of the steering wheel. The switches are connected via fly leads to the audio control switches. The standard speed control switches are resistive ladder type switches which vary the resistance of a 5 volt signal sent to them. The signal is returned along a local interconnect network (LIN) bus from the audio control switches to the instrument cluster. The instrument cluster routes the control signals to the engine control module (ECM) on the medium speed controller area network (CAN) bus.

Speed control is engaged by rotating the speed adjustment switch to the + or - positions. Once engaged the speed can be varied by the speed adjustment switch. Each press of the speed adjustment switch will increase or decrease the set speed in steps of 1 mph (2 km/h).