Fuel Level Sensor; Gauge Test - Chrysler 1998 Viper RT/10 Owner's Manual

S R
INSTRUMENT PANEL/GAUGES 8E - 3
DIAGNOSIS AND TESTING (Continued)
TURN IGNITION KEY O N
(DO N O T START ENGINE
RELEASE P A R K I N G BRAKE)!
I
WARNING LIGHT GOES
O N
(LIGHT SHOULD BE OFF)
BRAKE SYSTEM
LEAKING FLUID
APPLY PARKING BRAKE
(WARNING LIGHT
SHOULD G O O N )
W A R N I N G LIGHT
FAILS T O G O ON
G R O U N D E D WIRING
BULB BURNED O U T
SHORTED PARKING BRAKE
OR BRAKE WARNING SWITCH
DISCONNECTED O R FAULTY
BULB SOCKET
FAULTY BRAKE SYSTEM
PROPORTIONING
VALVE UNIT*
BROKEN WIRE O R WIRE
DISCONNECTED AT PARKING
BRAKE SWITCH
FAULTY PARKING
BRAKE SWITCH
APPLY BRAKES
(WARNING LIGHT
SHOULD NOT G O ON)
TEST BRAKE
WARNING
SYSTEM FUNCTION*
W A R N I N G LIGHT GOES
ON
W A R N I N G LIGHT
DOES NOT G O ON
BRAKE SYSTEM
LEAKING FLUID
O P E N CIRCUIT IN WIRING
TO BRAKE SWITCH
G R O U N D E D WIRING OR
SHORTED BRAKE WARNING
SWITCH
L O O S E BULKHEAD
CONNECTOR
FAULTY BRAKE SYSTEM
PROPORTIONING
VALVE UNIT*
FAULTY BRAKE
SWITCH
*TESTS ARE DESCRIBED
IN APPROPRIATE
SECTION O F SERVICE
MANUAL
FAULTY BRAKE
SYSTEM PROPORTIONING
VALVE UNIT*
938E-99
BRAKE
WARNING LIGHT
SWITCH
CONNECTOR
938E-20
Fig. 3 Brake Warning Lamp Switch
ENGINE OIL PRESSURE SENDING UNIT TEST
The sending u n i t provides a resistance t h a t varies
w i t h oil pressure to the oil pressure gauge (Fig. 9).
(1) To test the sending unit, measure the resis-
tance between the sending u n i t t e r m i n a l and t h e
metal housing. The ohmmeter should read between
zero and t e n ohms.
Fig. 2 Brake System Warning Lamp Diagnosis
(2) Start the engine. The ohmmeter should read
between 30 and 55 ohms, depending on engine speed,
oil temperature, and oil viscosity.
(3) I f the above results are not obtained, replace
the switch.
ENGINE OIL PRESSURE SWITCH TEST
(1) To test the normally closed oil lamp circuit, dis-
connect the locking connector and measure the resis-
tance between the switch t e r m i n a l and the metal
housing. The ohmmeter should read zero ohms.
(2) Start the engine. I f there is oil pressure, the
ohmmeter should read an open circuit. I f not, replace
switch.
FUEL LEVEL SENSOR
Refer to Group 14, Fuel.
GAUGE TEST
• © Engine Coolant Temperature
• Engine O i l Pressure
• Fuel
• Voltmeter