Chrysler Conquest 1988 Service Manual page 319

ETACS
- Checking Circuit
8-307
7. Vehicle-speed Sensor Circuit
Reed
switch
Vehicle.speed detection circuit
(ECU connector terminals)
16Y3635
Check method
Step ICondition
Check object
Disconnect
the speedo-
meter cable
where con-
nected to the
transmission.
IG SW: OFF
ECU connec-
tor:
separation
T
Continuity between
ground and ECU ter-
minal when inner
cable of speedo-
meter cable is
turned slowly
(17-Ground)
Reed switch or
Replace the speedo-
harness dam-
meter (refer to
aged or discon- P.8-168) or repair
netted the harness.
Reed switch or
harness short-
circuit
IG SW: Ignition Switch,
ECU: Electronic Control Unit