Speed Control Switches: Notes
WARNING: This page is about a different car, the 2015 Jaguar XF, 2014 Jaguar XF, and 2013 Jaguar XF. However, it is still accessible from the selected car via links, so may be relevant.
| ITEM | DESCRIPTION |
|---|---|
| 1 | Set speed + switch (Engage speed control/increase speed) |
| 2 | Resume (RES) (Resume previous set speed) |
| 3 | Set speed - switch (Decrease speed) |
| 4 | Time gap decrease switch (Vehicles with adaptive speed control only) |
| 5 | Cancel (CAN) (Disengage speed control) |
| 6 | Time gap increase switch (Vehicles with adaptive speed control only) |
The speed control switches are located on the right steering wheel switchpack. The switches are connected via fly leads to the clockspring. The 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 LIN bus, via the clockspring to the CJB.
The CJB routes the control signals to the adaptive speed control module on the high speed CAN bus.
Speed control is engaged by pressing the set speed switch '+'. Once engaged the speed can be varied by the set speed adjustment switches ('+' or '-'). Each press of the speed adjustment switch will increase or decrease the set speed in steps of 1 mph (2 kph).