Removal - Tailgate Marker Lamp; Installation; Installation - Fender Marker Lamp; Installation - Tailgate Marker Lamp - Dodge RAM 1500 1998 Owner's Manual

8L - 18 LAMPS/LIGHTING - EXTERIOR
MARKER LAMP UNIT (Continued)

REMOVAL - TAILGATE MARKER LAMP

(1) Remove the two screws that secure the lens
assembly to the tailgate (Fig. 15).
(2) Turn the bulb sockets counterclockwise a quar-
ter turn and remove the bulb sockets from the lens
assembly.
Fig. 15 Tailgate Marker Lamp Housing
1 - RETAINING NUT (2)
2 - TAILGATE
3 - WIRING HARNESS AND BULB SOCKET
4 - SCREW (2)
5 - LENS ASSEMBLY

INSTALLATION

INSTALLATION - FENDER MARKER LAMP

(1) Install the bulb socket to the lens assembly.
Turn the bulb socket a quarter turn clockwise.
(2) Position the lens assembly against the fender.
Using firm pressure, push the lens assembly into the
fender.

INSTALLATION - TAILGATE MARKER LAMP

(1) Install the bulb sockets into the lens assembly.
Turn the bulb sockets a quarter turn clockwise.
SWITCH POSITION
Off
Headlamp High Beams On
Hazard
Install and tighten the two screws securely.

MULTI-FUNCTION SWITCH

DESCRIPTION - TURN SIGNAL SYSTEM

switch that is monitored by the Instrument Cluster.
The turn signals are actuated with the lever on
Multi-Function Switch. The signals are automatically
turned off by a canceling cam (two lobes molded to
the back of the clock spring mechanism). The cam
comes in contact with the cancel actuator on the turn
signal (multi-function) switch assembly. Either cam
lobe, pushing on the cancel actuator, returns the
switch to the OFF position.

OPERATION - TURN SIGNAL SYSTEM

multifunction switch. In a turning event the Instru-
ment Cluster senses a change in the turn signal
lever and illuminates the appropriate turn signal
indicator. At the same time, the Instrument Cluster
will send a J1850 message on the PCI bus to the
Front Control Module (FCM). The FCM will respond
by activating the appropriate relay in the Power Dis-
tribution Center.
vehicle has traveled a distance of approximately 1.0
mile and a speed of 15 mph, with the turn signal ON.
DIAGNOSIS AND TESTING - MULTI-FUNCTION
SWITCH
optical horn portion of the multi-function switch:
Electrical, Lamps/Lighting - Exterior, Multi-Function
Switch, Removal, and Installation.
ings between multi-function switch pins. Refer to
Wiring Diagrams for proper pin numbers and the
MULTI-FUNCTION SWITCH TESTS table.
MULTI-FUNCTION SWITCH TESTS
EXTERIOR LIGHTING FUNCTIONS
CONNECTOR PINS
(2) Position the lens assembly to the tailgate.
The multi-function switch is a resistive MUX
The Instrument Cluster monitors the multiplexed
A chime will sound after the turn is completed if
To test the turn signal, headlamp beam select and
(1) Remove the multi-function switch, refer to
(2) Using an ohmmeter check the resistance read-
1 - 2
1 - 2
3 - 2
DR
RESISTANCE (OHMS)
Open
518 - 575
115 - 128