Tail Door Window Switch

Roof On Switch (3 Door Vehicles Only) The roof on switch (C0497) is located on the RH 'D' post, and is provided a constant battery feed by fuse 14 of the passenger compartment fuse box (C0583) 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. The CCU will now inhibit operation of the tail door window.

Tail Door Window Switch

The tail door window switch is located on the centre console. The CCU (C0428) provides feeds to the switch (C0354) on a BR wire and a BK wire. When the switch is moved to the down position, current supplied to the switch on the BR wire flows across the closed switch contacts to earth on a B wire. When the CCU registers this earth, it powers the tail door window down.

When the switch is moved to the up position, current supplied by the CCU on the BK wire flows across the closed switch contacts to earth on a B wire. When the CCU registers this earth, it powers the tail door window up.

Up

When up operation of the tail door window is requested, the CCU (C0429) provides a feed to the window lift relay module (C0043) on an RU wire. The relay module (C0043) is now able to provide a feed to the window motor (C0612) on a UB wire. Current flows across the motor windings (C0612) and back to the relay module (C0043) on a UG wire. The relay module (C0043) is earthed on a B wire.

Down

When down operation of the tail door window is requested, the CCU (C0429) provides a feed to the window lift relay module (C0043) on an RG wire. The relay module (C0043) is now able to provide a feed to the window motor (C0612) on a UG wire. Current flows across the motor windings (C0612) and back to the relay module (C0043) on a UB wire. The relay module (C0043) is earthed on a B wire.

Tail Door Window Motor

The CCU needs to know the position of the tail door window at all times (see Description). To do this, the CCU (C0429) provides a feed to a hall effect sensor located within the tail door window motor (C0612) on an SP wire. The sensor (C0612) is provided an earth by the CCU (C0430) on a KB wire. The hall effect sensor (C0612) provides a signal feed to the CCU (C0429) on an SR wire, informing it of the position of the tail door window.