Chrysler Conquest 1988 Service Manual page 525

ETACS
- Washer-interlocked Wbers
8-275
WASHER-INTERLOCKED WIPERS
CIRCUIT DIAGRAM
I
Wiper motor I
To battery
I
16Y3588
COMPONENT PARTS AND FUNCTION
Electronic Control Unit (ECU) Wiper control relay is controlled based upon wiper switch ON (L) signals.
(transistor Trl)
Washer Switch This is an automatic-reset type switch.
It is ON when pressed, and OFF when released..
When switched ON, washer motor is activated and a ground signal is
sent to the ECU.
Washer Motor
Wiper Relay
Washer fluid is sprayed from the washer nozzles when the washer
switch is ON, (There is no direct relationship with ETACS control.)
_
Switched ON by signals from the ECU, thus forming the wiper motor's
low speed circuit and activating the wipers.
(When the wiper switch is at the OFF or AIINT position.)
IgnitionSwitch ON position
ACC position
Sends HIGH signals to the ECU (when ignition key is turned to ON or
ACC), to activate the system.
TROUBLESHOOTING GUIDE
Trouble Symptom
Cause
Check method
Remedy
No wiper op~eration when Damaged or disconnected wiring of
Check by using check
Repair the harness.
washer switch set to ON, washer switch input circuit
chart No.9 (P.8-309).
(Wiper intermittent oper-
ation and washer func-
Damaged wiring between LO and S
Check the wiper
Replace the wiper
tion is normal, however,
terminals of wiper switch OFF position
switch (P.8-204).
switch.
at the A/INT position
of the wiper switch.)
Malfunction of the ECU
-
Replace the ECU.
ECU:~Electronic Control Unit