Group 30 Electrical System—VNL, VNM
Design and Function
Intermittent Windshield Wiper/Washer Module
The windshield wiper module uses inputs from the wiper/washer switch to electronically
control the wiper and washer motors when intermittent wipers are in use. It is located
under the relay panel, and is accessed by removing the top and front TEC center covers,
and the fuse and relay panels.
Intermittent wipers are set to make a single sweep every 10 seconds. To shorten the
interval, move the stalk to the normal wipe position, then to the intermittent wipe position
when the next wiper sweep is desired. The interval can be set to between 1 and 10
seconds.
The wipers will also make a single sweep if the wiper stalk is slightly depressed and
held. The wipers return to the park position when the lever is released.
W3000554
Wiper/Washer Module Connector
Pin
Circuit Number
Description
Input
/Output
Characteristics
1
0G
Battery ground
I
Battery (-)
2
3
4
5
Not used
6
388
Switch, intermittent wiper
I
On = Supply voltage (min. 10mA)
Off = 0C
7
Not used
8
387
Windshield washer motor
I
On = Supply voltage (min. 10mA)
Off = 0C
9
384
Power supply
I
Switched battery (+)
10
11
12
Not used
13
389
Windshield wiper motor
O
Supply voltage (max. 12A)
(source)
14
Not used
15
384
Windshield wiper motor
I
Supply voltage (max. 12A)
16
385
Windshield wiper motor, contact
parking position
I
Parking position = Ground
33
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