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 transmission using the Jaguar sequential shift feature.

Each paddle switch has three connections: PWM (Pulse Width Modulation) supply, ground switch signal and illumination. The paddle switches are hardwired to the right steering wheel switchpack. Operation of the paddle switch completes a ground path to the switchpack. The switchpack converts the completed ground signal into a LIN (Local Interconnect Network) bus signal which is passed via the clockspring to the CJB (Central Junction Box). The CJB converts the signal and sends a message to the TCM via the HS CAN Powertrain bus.

Pulling the Downshift paddle switch on the left side of the steering wheel provides down changes and pulling the Upshift paddle switch on the right side of the steering wheel provides up changes. The first operation of either paddle switch, after sport mode is selected, puts the transmission into permanent manual Jaguar sequential shift mode. Rotation of the TCS back to 'D' returns the transmission to conventional automatic operation.

Temporary operation of manual Jaguar sequential shift mode can also be operated with the TCS in 'D'. Operation of either the upshift or downshift paddle switches activates the manual mode operation. If the TCS is in 'D', Jaguar sequential shift will cancel after a time period or can be cancelled by pressing and holding the Upshift paddle switch for approximately 1.2 seconds.

The temporary operation of the paddle switches in the 'D' position is disabled in some markets as a default at delivery. This can be overridden in the IC menu and the driver can configure the paddle switch operation as 'Active in 'S' only' or 'Active in 'D' and 'S".