8W-51 Rear Lighting - Jeep Wrangler 1997 Manual

TJ
DIAGNOSIS AND TESTING
8W - 51 REAR LIGHTING
TAIL LAMPS AND REAR LICENSE PLATE 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, tail
lamps, rear license plate lamp and side marker
lamps . The tail lamps are case grounded .
HELPFUL INFORMATION
Circuit L7 also provides the illumination lamp sig-
nal to the radio . If the vehicle is equipped with fac-
tory installed fog lamps, circuit L7 also feeds the
contact side of fog lamp relay number two (2) .
STOP LAMPS AND CHMSL LAMPS
Circuit A6 from fuse 4 in the Power Distribution
Center (PDC) feeds circuit F32 through fuse 2 in the
fuse block. Circuit F32 connects to the stop lamp
switch .
When the operator presses the brake pedal, the
stop lamp switch CLOSES and connects circuit F32
to circuit L50. Circuit L50 connects to the stop lamps
and Center High Mounted Stop Lamps (CHMSL) .
Circuit Z1 provides a ground for the CHMSL lamps .
The stop lamps are case grounded
HELPFUL INFORMATION
" Check fuse 4 in the PDC and fuse 2 in the fuse
block .
8W-51 REAR LIGHTING
8W-51-1
" Check for continuity across the stop lamp switch
when it is closed .
BACK-UP LAMPS
In the RUN position, the ignition switch connects
circuit A2 from fuse 2 in the Power Distribution Cen-
ter (PDC) to circuit A22 . Circuit A22 feeds circuit F20
through fuse 7 in the fuse block .
Circuit F20 supplies power to the back-up lamp
switch . On automatic transmission equipped vehicles,
the back-up lamp switch circuitry is part of the
PARK/NEUTRAL position switch. When the operator
puts the transmission in REVERSE, the back-up
lamp switch connects circuit F20 to circuit L1 . Cir-
cuit Ll feeds the back-up lamps. Circuit Z1 provides
ground for the back-up lamps.
HELPFUL INFORMATION
" Check fuse 2 in the PDC and fuse 7 in the fuse
block.
" Check for continuity across the back-up lamp
switch when it is closed.
SCHEMATICS AND DIAGRAMS
WIRING DIAGRAM INDEX
The following index covers all components found in
this section of the wiring diagrams . If the component
you are looking for is not found here, refer to section
8W-02 for a complete list of all components shown in
the wiring diagrams .