Operation

OPERATION

Front Door Windows General

Feed from the positive battery terminal (C0192) is supplied to fusible link 3 and fusible link 4 of the engine compartment fuse box (C0632) on an R wire. Fusible link 4 (C0574) provides a constant battery feed to the window lift relay (C0587) on an NW wire. Fusible link 4 (C0574) also provides a constant battery feed to the Central Control Unit (CCU) (C0592) on an NW wire. The CCU is mounted directly onto the rear of the passenger compartment fuse box.

Fusible link 3 (C0571) is connected to the ignition switch (C0028) by an N wire. When the ignition switch is turned to the 'ignition' position, current flows across the switch (C0028) to fuse 8 of the passenger compartment fuse box (C0588) on a G wire. Fuse 8 provides an ignition feed to the CCU (C0593).

Window Lift Relay

The earth path for the window lift relay coil is controlled by the CCU (C0593). When the CCU (C0593) receives an 'ignition on' feed from fuse 8 of the passenger compartment fuse box, it will energise the window lift relay. The energised window lift relay provides a feed to fuse 33 and fuse 34, which are also located in the passenger compartment fuse box.

Driver Door Window – LHD Vehicles Fuse 33 of the passenger compartment fuse box (C0586) provides a feed to the driver door window switch (C0321) and the window lift ECU (C0341) on RG wires. The window lift ECU (C0341) is earthed on a B wire.

When the driver door window switch is pressed to lower the window, current flows across the switch (C0321) to the window lift ECU (C0341) on an OG wire. The window lift ECU (C0341) now provides a feed to the driver door window lift motor (C0326) on an R then OR wire. Current flows across the motor (C0326) back to the window lift ECU (C0341) on an OU then U wire. The window lift ECU (C0341) is provided an earth path via the driver door window switch (C0321) on an OY wire.

The driver door window switch (C0321) is earthed on a B wire. The window will now move to the fully lowered position.

When the driver door window switch is pressed to raise the window, current flows across the switch (C0321) to the window lift ECU (C0341) on an OY wire. The window lift ECU (C0341) now provides a feed to the driver door window lift motor (C0326) on a U then OU wire. Current flows across the motor (C0326) back to the window lift ECU (C0341) on an OR then R wire. The window lift ECU (C0341) is provided an earth path via the driver window switch (C0321) on an OG wire.

The driver door window switch (C0321) is earthed on a B wire. The window will now move to the fully raised position.