Chrysler Conquest 1988 Service Manual page 413

METERS AND GAUGES
- Service Adjustment Procedures
8-163
ENGINE COOLANT TEMPERATURE GAUGE SIM-
PLE TEST
NOBHIDA
1.
2.
3.
4.
5.
Disconnect the wiring connector from the engine coolant
temperature gauge unit insicle the engine compartment.
Ground the connector at the harness through a test light.
Turn the ignition key to the ON position.
Check to be sure that the test light flashes or lights steadily
and the engine coolant temperature gauge operates.
If both the test light and gauge operate, the circuit to the
gauge unit is normal and the gauge unit itself is faulty.
If the test light flashes or lights steadily but the gauge does
not operate, the gauge is faulty.
If neither the test light nor the gauge operates, the engine
coolant temperature gauge circuit is faulty.
PRESSURE METER SIMPLE TEST
NOSHIEB
1. Disconnect connectors from ECI control unit located on the
R.H. cowl side.
2. Ground the terminal number 59 of the ECI control unit
through the test light.
3. Turn the ignition key to the ON position.
4.
Check to be sure that the test light flashes or lights steadily
and the pressure meter operates.
5. If both the test light and meter operate, the circuit to the
control unit is normal and the control unit itself is faulty.
If the test light flashes or lights steadily but the meter does
~~
not operate, the meter is faulty.
If neither the test light nor the meter operates, the pressure
meter circuit is faulty.
EC1725
EC1669