Tail Door Switch

Tail Door Switch

The CCU (C0428) monitors the condition of the tail door switch (C0616) by providing a feed on a BO wire. The tail door switch is open circuit when the tail door is closed. When the tail door is opened, the switch contacts close and an earth path is created on a B wire. Sensing this earth path, the CCU suspends operation of the rear wiper.

Roof On Switch (3 Door Vehicles Only) Fuse 14 of the passenger compartment fuse box (C0583) provides a constant battery feed to the roof on switch (C0497) on a P wire. The roof on switch is closed when the hard back is fitted, or the soft back is in the fitted position. In this instance, current flows across the switch (C0497) to the CCU (C0428) on a PY wire.

If the hard back is removed (or the soft back is folded down) the roof on switch becomes open circuit, and the feed to the CCU is removed. When the CCU registers this, it suspends operation of the rear wiper.