Wiper/Washer System Circuit Description P42
Voltage is supplied from the WIPER fuse to connector C 207,
cavity D, and the wiper/washer switch through CKT 143 (YEL) when the ignition
switch is in the ACC or RUN positions. Ground is supplied through the wiper/washer
motor and is installed by the body builder.
Low Speed
Moving the wiper/washer switch to the LOW position applies voltage through
CKT 91 (GRY) to C 207, cavity E, and CKT 98 (ORN) to
C 207, cavity F.
High Speed
Moving the wiper/washer switch to the HIGH position applies voltage
through CKT 92 (PPL) to C 207, cavity C.
Mist
Moving the wiper/washer switch to the MIST position applies voltage
through CKT 91 (GRY) to C 207, cavity E, and CKT 98
(ORN) to C 207, cavity F.
Wash
Depressing the WASH switch closes the contacts and applies voltage through
CKT 94 (PNK) to C 207, cavity B.
Wiper/Washer System Circuit Description P32
Voltage is supplied to the wiper motor by the WIPER fuse
through CKT 143 (YEL) to connector C 207, cavity E when the
ignition switch is in the ACC or RUN position. Different speeds and functions
of the wiper motor are achieved by completing different ground paths through
the windshield wiper pulse control module. CKT 91 (GRY) (windshield
wiper relay feed coil) is used to keep the wiper motor running. When this
circuit is not grounded the motor will not turn. Closing the various contacts
in the wiper/washer switch will provide ground for this circuit and allow
the motor to turn.
LOW or MIST Position
With the wiper/washer switch in the LOW or MIST position, ground is
provided to the wiper motor through the following path:
| • | CKT 97 (GRY) from the wiper washer motor (C 207)
to the windshield wiper pulse control module. |
| • | CKT 150 (BLK) from the windshield wiper pulse control module
to the wiper/washer switch. |
| • | CKT 91 (GRY) or CKT 97 (LT BLU/BLK) from the wiper/washer
switch to the windshield wiper pulse control module. |
| • | CKT 250 (BLK) from the windshield wiper pulse control module
to ground G 200. |
HIGH Position
With the wiper/washer switch in the HIGH position, ground is provided
to the wiper motor through the following path:
| • | CKT 92 (PPL) from the wiper washer motor (C 207)
to the windshield wiper pulse control module. |
| • | CKT 150 (BLK) from the windshield wiper pulse control module
to the wiper/washer switch. |
| • | CKT 92 (PPL) from the wiper/washer switch to the windshield
wiper pulse control module. |
| • | CKT 250 (BLK) from the windshield wiper pulse control module
to ground G 200. |
DELAY Operation
The voltage and the ground operation to the wiper motor is the same
as the LOW or MIST operation. The delay rheostat in the wiper/washer switch
controls the delay. Turning the rheostat will change the amount of resistance
as well as the timing of the delay. When the wiper/washer switch is in the
DELAY position ground is provided through the following path:
| • | CKT 97 (GRY) from the wiper washer motor (C 207)
to the windshield wiper pulse control module. |
| • | CKT 96 (BLK/WHT) from the windshield wiper pulse control
module to the wiper/washer switch. |
| • | CKT 96 (BRN) from the wiper/washer switch to the windshield
wiper pulse control module. |
| • | CKT 250 (BLK) from the windshield wiper pulse control module
to ground G 200. |
Washer Pump
When the contacts of the wash switch in the wiper washer switch close,
the ground is provided through the following path:
| • | CKT 92 (PNK) from the wiper washer motor (C 207)
to the windshield wiper pulse control module. |
| • | CKT 150 (BLK) from the windshield wiper pulse control module
to the wiper/washer switch. |
| • | CKT 94 (PNK) from the wiper/washer switch to the windshield
wiper pulse control module. |
| • | CKT 250 (BLK) from the windshield wiper pulse control module
to ground G 200. |
