Rear Window Wiper

Tؾ\Rear Window Wiper:

WIRING DIAGRAM

Rear Window Wipers: Component Location:

COMPONENT LOCATION VIEW

Rear Window Wipers: Component ID:

COMPONENT ID
22A Main fuse board in the dashboard.
61A Rear window wiper switch on the windshield wiper stalk switch.
62A Rear window wiper motor immediately below the rear window.
63 Washer motor on washer fluid reservoir in the left-hand wheel housing.
83A Intermittent operation relay for the rear window wiper, in the main fuse box in the dashboard.
500 ICE control module
LHD: above main relay board in dashboard
RHD: behind main relay board in dashboard

2-Pin Connector
H2-3 In the luggage compartment behind the left-hand wheel housing.

4-Pin Connector
H4-4 In the luggage compartment behind the left-hand wheel housing.

33-Pin Connectors
H33-2 Black connector on bracket below the left-hand A pillar.
H33-3 Blue connector on the bracket below the left-hand A pillar.

Grounding Points
G3 Grounding point, luggage compartment, below left-hand rear light cluster.
G5 Grounding point under rear seat on the left.
G33P Grounding point, connector bracket (Power) below the left-hand A pillar.
G34P Grounding point, control module bracket (Power) below the right-hand A pillar.


DESCRIPTION OF OPERATION
Certain cars are equipped with a rear window wiper. When the ignition switch is in the Drive position, current is supplied via fuse 8 to switch 61A for the rear window wiper and to intermittent operation relay 83A for the rear window wiper, and also to the rear window wiper motor.

When switch 61A is in position 1, current is supplied from pin 4 of this switch to the ICE, which grounds the intermittent operation relay for 0.5 seconds every 8th second.

The wiper motor incorporates a mechanically actuated switch which controls the supply of current so that the motor always returns the wiper to the parked position after the circuit has been broken by the switch.

This is achieved by supplying the wiper motor with current from pin 3 via the built-in limit switch, through the intermittent operation relay, and from there back to the rear window wiper motor.

This limit switch opens when the wiper is in the parked position and if pin 2 is not supplied with current the motor will stop.

Washing starts when the spring-loaded washer button is depressed. The washer motor and the ICE are supplied with current from pin 2 of the switch.

The ICE grounds the intermittent operation relay and the rear window wiper completes 3 sweep cycles. After 15 seconds the ICE grounds the relay again for 0.5 seconds.

FAULT DIAGNOSIS HINTS
The rear window wiper will be operative when the ignition switch is in the Drive position.
1. Check that fuse 8 is intact and supplied with current.
2. Check connectors, wiring and ground connections.