Chrysler Conquest 1988 Service Manual page 285

ETACS
- lntermitterit Wipers (Vehicle-speed-correlative Tvpe)
8-273
Wiper Relay
\
-~
--+A\ /,I->
16'y36b2
&kzz-speed Reed switch type
TROUBLESHOOTING GUIDE
Located in the relay box at left front part of engine compartment.
This relay controls the wiper intermittent drive based upon
signals from the wiper switch and ECU.
Sends four pulse signals to the ECU
for each revolution of the transaxle
output gear (speedometer cable).
for other electronic control systems.)
Sends HIGH signals to ECU (when ignition key is turned to ON or ACC).
Trouble Symptom Cause Check method
No wiper operation when wiper
switch is set to A/INT position.
Damaged or disconnected
If input checks (P.8-296)
[Wipers operate, however,
wiring of A/INT switch in-
indicate a malfunction,
put circuit
when wiper switch is at position
check by using check
_
chart No.3 (P.8-303).
1 (low speed).] Damaged or disconnected
wiring of A/INT switch
Damaged or disconnected
Check by using check
wiring of ignition switch
chart No.2 (P.8-302).
ACC or ON input circuits
Damaged or disconnected Check by using check
wiring of wiper relay chart No.5 (P.8-305).
drive circuit
Malfunction of the wiper
relay
Wipers don't stop when wiper
switch set to OFF.
:When wipers are operating at
ow speed)
\IOTE
f the wipers continue non-stop
operation at high speed, there is
3 short-circuit at the high speed
side of the wiper motor.
Damaged or disconnected
Check by using check
wiring of wiper motor low- chart No.4 (P.8-304).
speed drive circuit
-z
Malfunction of the ECU
-
Short-circuit of A/INT After checking AIINT
switch input circuit
switch input (P.8-297).
Short-circuit of A/INT
check by using check
chart No.3 (P.8-303).
switch
Short-circuit of wiper
Check by using check
relay drive circuit chart No.5 (P.8-305).
Short-circuit of wiper Check by using check
motor low-speed drive cir- chart No.4 (P.8-304).
cuit
Malfunction of the ECU
-
Remedy
Repair the harness or
replace the wiper
switch
Replace the fuse or
repair the harness.
Repair the harness or
replace the wiper relay.
Repair the harness or
replace the wiper
switch.
Replace the ECU.
Repair the harness or
replace the wiper
switch.
Repair the harness.
Repair the harness.
Replace
the ECU.
ECU: Electronic Control Unit