Low Oil Pressure Warning Lamp Test; Headlamp Switch - Chrysler 1998 Viper RT/10 Owner's Manual

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INSTRUMENT PANEL/GAUGES 8E - 5
DIAGNOSIS AND T E S T I N G (Continued)
(4) Using reading, estimate if gauge and reading
are near each other. I f fuel is added the ohms will
decease. I f the reading shows that a improper signal
is being sent from the fuel sensor it will need to be
tested. Refer to Group 14, Fuel.
W0LT1ETER:
(1) Using voltmeter, connect one lead to ground
and other lead to Pin 3 of the gauge wire harness
connector. Check generator output, refer to Group
8C, Generator.
(2) Ignition switch in the O N position, and the
engine not running, battery voltage should be
present.
(3) Ignition switch in the O N position and with the
engine running, the generator output voltage should
be more than battery voltage. I f OK, test voltmeter.
If not O K , check generator, if O K , repair circuit as
necessary.
HEADLAMP SWITCH
(1) Remove headlamp switch, refer to Switch/Lamp
Replacement for removal (Fig. 8).
(2) Using a ohmmeter check headlamp switch.
Check for continuity between Pins:
(a) Turn switch to the park position and check
Pin 3 to Pin 11.
(b) Turn switch to the headlamp O N position
and check Pin 11 to Pin 12.
(c) Pull switch knob to the fog lamp position
with the park or headlamps in the O N position.
Check Pin 8 to Pin 10.
(d) Park or headlamps in the ON position, check
Pin 7 to Pin 9.
(3) I f no continuity, replace headlamp switch. I f
OK, check headlamp relay, circuit and repair as nec-
essary, refer to Group 8W, Wiring Diagrams.
HEADLAMP
SWITCH KNOB
SWITCH
LOW OIL PRESSURE WARNING LAMP TEST
The engine warning lamp will illuminate when the
ignition key is turned to the O N position. The lamp
also illuminates when the engine oil pressure drops
below a safe oil pressure level.
To test the system, turn the ignition key to the O N
position. I f the lamp fails to light, inspect for broken
or disconnected wires at the oil pressure sensor unit
located at the front of the engine (Fig. 9).
E N G I N E WARNING']
L A W P S W I T C H
O I L G A U G E
S E N D I N G UNIT
I N S T A L L O I L
P R E S S U R E G A U G E
INTO T H I S F I T T I N G
O I L F I L T E R
A D A P T E R
OIL FILTER
Fig. 9 Oil Sending Unit/Sensor
MESSAGE CENTER TEST
(1) Warning lamps come on when the ignition
switch is first turned to the O N position and will
remain O N for a few seconds to confirm lamps are
working.
(2) I f any lamps do not light, remove message cen-
ter. Check lamps and replace as necessary. Refer to
Message Center Replacement for removal.
(3) I f none of the lamps light, Remove the message
center and inspect printed circuit board. Pay special
attention to area in (Fig. 10) where the arrow is
pointing. I f O K go to next step. I f not, replace mes-
sage center.
(4) I f lamp(s) are always O N or lighting when they
should not, test the sending units and wiring. Refer
to 8W, Wiring Diagrams.
I N S E R T
WIRE T O
R E L E A S E K N O B
Fig. 8 Headlamp Switch