8W-50 Front Lighting - Jeep Wrangler 1997 Manual

TJ 8W - 50 FRONT LIGHTING
DESCRIPTION AND OPERATION
DAYTIME RUNNING LAMP (DRL) MODULE . . . . . 1
FOG LAMPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
HEADLAMPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
DESCRIPTION AND OPERATION
PARKING LAMPS
Circuit
A6
from fuse
4
in the Power Distribution
Center (PDC) powers circuit
F34
through fuse 1 in
the fuse block . When the headlamp switch is in the
PARK lamp or ON position, it connects circuit
F34
to
circuit
L7 .
Circuit
L7
powers the parking lamps and
side marker lamps .
HELPFUL INFORMATION
Circuit
L7
also provides the illumination lamp sig-
nal to radio . If the vehicle is equipped with factory
installed fog lamps, circuit
L7
also feeds the contact
side of fog lamp relay number two (2).
HEADLAMPS
HEADLAMP SWITCH IN ON POSITION
The headlamp switch has three positions : ON,
PARK (parking lamps) and
OFF.
In the ON position,
the headlamp switch connects circuit
A3
from fuse 10
in the Power Distribution Center (PDC) to circuit
L2 .
Circuit
L2
connects to circuit
L4
through the dimmer
switch circuitry in the multi-function switch . Circuit
L4
powers the low beam of the headlamps .
When the operator selects high beam operation,
the multi-function switch connects circuit
L2
to cir-
cuit
L3 .
Circuit
L3
powers high beam operation . Cir-
cuit Z1 provides ground for the headlamps .
HEADLAMP SWITCH IN OFF OR PARKING
LAMP POSITION
The headlamps switch contains an internal circuit
breaker that connects circuit
A3
to circuit
L20.
Cir-
cuit
L20
connects to the multi-function switch . When
the operator momentarily flashes the high beams of
the headlamps with the turn signal lever, circuit
L20
connects to circuit
L3 .
Circuit
L3
feeds the high
beams of the headlamps .
FOG LAMPS
The fog lamps are controlled by the fog lamp
switch and two fog lamp relays . The fog lamps oper-
8W-50 FRONT LIGHTING
INDEX
page
8W-50- 1
page
PARKING LAMPS . . . . . . . . . . . . . . . . . . . . . . . . . 1
SCHEMATICS AND DIAGRAMS
WIRING DIAGRAM INDEX . . . . . . . . . . . . . . . . . . 2
ate only when the headlamp switch is in the PARK
or ON position, and the operator has selected low-
beam operation . When the headlamps are in high-
beam operation, the fog lamps will not operate .
Circuit
A6
from fuse
4
in the Power Distribution
Center (PDC) feeds circuit
F61
through fuse
3
in the
fuse block. Circuit
F61
powers the contact side of fog
lamp relay number one (1).
When the headlamp switch is in the PARK or ON
position, circuit
L7
from the switch connects to cir-
cuit
L95
through the contacts in fog lamp relay num-
ber two (2). When the fog lamp switch closes, it
connects circuit
L95
to circuit
L35 .
Circuit
L35 pow-
ers the coil side of fog lamp relay number one (1) .
Circuit Z1 provides ground for the coil side of fog
lamp relay number one (1).
When the fog lamp switch
CLOSES
and the head-
lamps are on but not on high beam, the contacts in
fog lamp relay number one (1)
CLOSE
and connect
circuit
F61
to circuit
L39.
Circuit
L39
powers the fog
lamps. Circuit Z1 provides ground for the fog lamps.
If the high beam lamps are ON, circuit
G34
ener-
gizes fog lamp relay number two (2). When fog lamp
relay number two (2) energizes, its contacts open and
disconnect circuits
L7
and
L95.
Disconnecting cir-
cuits
L7
and
L95
de-energizes fog lamp relay number
one (1) . When fog lamp relay number one (1) de-en-
ergizes, power is not supplied to the fog lamps .
Circuit
E2
provides voltage for the illumination
lamp in the fog lamp switch.
HELPFUL INFORMATION
Circuit
L3
splices to power circuit
G34.
Circuit
L3
powers the high beam circuit of the headlamps .
DAYTIME RUNNING LAMP (DRL) MODULE
On vehicles built for sale in Canada, the head-
lamps operate when the ignition switch is in the
RUN position .
When the ignition switch is in the START or RUN
position, circuit
Al
from fuse
3
in the Power Distri-
bution Center (PDC) connects to circuit
A21.
Circuit
A21
powers circuit
F12
through fuse 11 in the fuse