Windshield And Rear Window Washers

NOTE: Rear window washer uses the same washer reservoir and washer pump as the windshield washer.

The windshield and rear window washers are controlled by the CJB. A driver request for washer operation, via the wiper control switch, is passed to the IC on the LIN bus. The IC passes the message to the CJB on the medium speed CAN bus.

The CJB energizes the windshield washer pump during the up stroke of the first 2 wash/wipe cycles. This ensures that wiper fluid is pushed to the sides of the windshield and eliminates the trail of fluid which can occur if the fluid is pushed to the bottom of the windshield. The wipers will continue for 3 more cycles, followed after a delay of 4 seconds, by a single dry wipe.

NOTE: The dry wipe feature is configurable using an approved Jaguar diagnostic system.
The operation of the washer pump on the wiper up stroke only is configurable using an approved Jaguar diagnostic system.

The washer button can be pressed and held and the wipers will operate continuously for up to 10 seconds. After this period when the button is released, the wipers will continue for 3 more cycles, followed after a delay, by a single dry wipe. After this period washing will be inhibited, the wipers will continue for 3 more cycles, followed after a delay, by a single dry wipe. Reactivating the switch will recommence the wash/wipe cycle.