Rear Wiper

When the windscreen wiper delay ECU (C0303-6) receives a feed from the wash/wipe switch (C0278-2), it supplies a feed (C0303-2) back to the wash/wipe switch (C0278-4) on a yellow/light green wire. Power flows across the wash/wipe switch (C0278-1) and onto the wiper motor (C0030-3), which operates at slow speed. When the washer switch is released, the ECU will operate the wipers for a further 3 cycles. Once this has been completed, the feed to the wash/wipe switch is cut by the ECU and the park circuit is initiated.

Rear Wiper

The rear wiper switch (C1197-1) is supplied a feed by fuse 3 of the passenger compartment fuse box (C0580-6) on a white/green wire. When the switch is in the ’On’ position (C1194-1), power is fed to the rear screen wiper motor (C0388-2) on a red/light green wire. The wiper motor (C0388-1) is earthed on a black wire.

Rear Park Circuit

Positioning the rear wiper switch to the ’Off’ position cuts power to the rear wiper motor on the red/light green wire. The park circuit operates to return the wiper to its park position. The park switch (C1105-2) is integral with the wiper motor. It receives a feed from fuse 3 (C0580-6) of the passenger compartment fuse box on a white/green then green wire. The park switch is closed with the wiper in any position except its park position.

With the park switch closed, power flows across the switch (C1105-1) to the rear wiper switch (C1195-1) on a brown/light green wire. Power flows across the wiper switch (C1194-1) back to the wiper motor (C0388-2) on a red/light green wire. The wiper motor (C0388-1) is earthed on a black wire. The wiper operates until the park position is reached, when the park switch opens, cutting the power supply to the motor.

Rear Wash

The rear washer switch (C1197-1) is supplied a feed by fuse 3 of the passenger compartment fuse box (C0580-6) on a white/green wire. When the switch is depressed, power is supplied (C1196-1) to the rear screen washer pump (C0021-2) on a black/light green wire. The washer pump (C0021-1) is earthed on a black wire.