Paddle Switches
Two gear change 'paddle' switches are fitted at the rear of the steering wheel and allow the driver to operate the transmission as a semi-automatic manual gearbox using the Jaguar sequential shift feature.
Each paddle switch has 3 connections; ground, illumination pulse width modulation (PWM) supply and ground switch signal. The paddle switches are hardwired to the steering wheel audio switches. Operation of the paddle switch completes a ground path to the audio switch assembly. The audio switch assembly converts the completed ground signal into a local interconnect network (LIN) bus signal which is passed via the clockspring to the instrument cluster. The instrument cluster converts the signal into a high speed controller area network (CAN) bus signal to the transmission control module (TCM).
Pulling the left-hand (LH) downshift - paddle provides down changes and pulling the right-hand (RH) upshift (+) paddle provides up changes. The first operation of either paddle, after sport mode is selected, puts the transmission into permanent manual Jaguar sequential shift mode. Rotation of the JaguarDrive selector back to the D position, returns the transmission to conventional automatic operation.
Temporary operation of manual Jaguar sequential shift mode can also be operated with the JaguarDrive selector in the D position. Operation of either the upshift or downshift paddles activates the manual mode operation. If the JaguarDrive selector is in D, Jaguar sequential shift will cancel after a time period or can be cancelled by pressing and holding the + paddle for approximately 2 seconds.