1953 JEEP DJ light

H

ELECTRICAL
SYSTEM
sibility
of the cable shorting at the
engine
or frame.
Remove nut and lock washer securing the ignition

wire
to the solenoid
post
and remove the two screws and lock washers securing the solenoid to
the starter frame. Remove the switch,
b.
To install the solenoid switch reverse the re­

moval
procedure given above.

H-10S.
STARTING MOTOR
—
DELCO
DAUNTLESS
V-6
ENGINE

Refer
to Fig. H-45.

The
starting motor used on the Dauntless V-6 en­

gine
has an integral solenoid switch and enclosed
shift lever which first shifts the overrunning clutch
pinion into
engagement
with the ring gear on the
flywheel of the
engine
and then
closes
the electrical
circuit
to cause
engine
cranking. When the
engine

starts,
the overrunning clutch
disengages
to pre­ vent transfer of
engine
speed to the starting motor.

Note:
Should a service replacement starter motor
be required the factory recommends replacement

with
original equipment parts; however, should the need arise an existing starter motor (Delco or
Prestolite) could be replaced with the current
Delco-Remy
starter, model 1108375, with the
following modifications to the wiring harness. If
the existing starter motor wiring harness
does
not
provide a 12 ga. purple conduit wire, (connects the ignition switch to the starter motor) then a 12 ga.

purple
conduit wire 70 inches long, must be in­

stalled.
Should the existing starter motor wiring
harness
contain a 16 ga. light blue conduit wire, (connects the ignition switch and starter motor)
bend this wire back and tape out of the way.

H-109.
Starting Motor Disassembly
a.
Before removing the starting motor from the
engine, disconnect leads and cover battery lead

terminal
with piece of
hose
or tape to prevent
short circuiting.
Note
locations of wiring connec­
tions to assure proper reconnection. Remove the cap screw that secures the starting motor to the
angle bracket on the side of the engine. Remove
the two cap screws that secure the drive end of
the starting motor to the cylinder block; remove
the starting motor.

b.
Remove terminal nut and disconnect field lead,

which
passes through grommet at top of motor,
from
motor terminal of solenoid. Remove two
thru

bolts
from motor. Remove commutator end frame

and
field frame assembly from solenoid and drive assembly.
e.
Pull
out pivot pins of brush holders and remove each of two brush holder and spring assemblies

from
field housing. Remove screws which attach
brushes and leads to holders.

d.
Remove armature and drive assembly from
drive
housing. Remove thrust collar from pinion
end of armature shaft. Remove leather thrust

washer
from
opposite
end of shaft.
e. To separate drive assembly from
armature,
place

a
metal cylinder of proper size (J^" [12,7 mm.]
pipe coupling is satisfactory) over end of armature
shaft to bear against the pinion
stop
retainer. Tap
retainer
toward armature to
expose
snap ring as
shown in
Fig.
H-47. Remove snap ring from
groove
in
shaft; slide retainer and pinion drive assembly

from
shaft. Remove assist spring from shaft,

f.
Remove two screws holding solenoid switch to
drive
housing remove switch. Remove small nut

and
insulating washer from the solenoid S terminal.
Remove nut and insulating washer from the
sole­

noid battery (large) terminal. Remove two screws that attach switch cover to solenoid and remove cover for inspection of switch parts. Remove shift
lever fulcrum bolt and remove shift lever, plunger,

and
return spring.
12765
FIG.
H-47—REMOVING PINION
DRIVE
ASSEMBLY

FROM
ARMATURE SHAFT

1— XA ' Pipe Coupling

2—
Snap
Ring
and Retainer

3—
Armature
Shaft
4—
Drive
Assembly
H-110.
Starting
Motor
Cleaning and
Inspection

a.
Wipe all parts clean with clean cloths. The
arma­
ture,
field coils, and drive assembly must not be
cleaned by any degreasing or high temperature
method.
This
might damage insulation so that a
short
circuit
or ground would subsequently develop.
It
would also remove lubricant originally packed

in
the overrunning clutch so that clutch would

soon
be ruined.

b.
Carefully
inspect all parts visually for wear or
damage. Make necessary repairs or replace unserv­
iceable parts. Any soldering must be
done
with

rosin
flux.

Note:
Never use acid flux when solding any elec­

trical
connections and never use emery cloth to
clean
armature
commutator or other
electrical
units. 208

'Jeep'
UNIVERSAL
SERIES SERVICE
MANUAL

H
H-111.
Brushes

Check
brush length. If brushes are worn to one-

half
their original length, replace them. Also check
for
cracks,
chips, damaged mounting holes, oil

saturation,
or other damage; replace brushes.

H-112.
Commutator

Check
the commutator for wear and discoloration.
If
the commutator is rough or worn the armature
should be removed and the commutator turned
down in a lathe. A discolored commutator should
be cleaned with carbon tetrachloride and inspected.

Scratches
on the commutator may be removed

with
sand paper. Use compressed air to remove

sand
particles after cleaning.

H-113.
Armature

Visually
inspect the armature for mechanical

defects
before checking for shorted or grounded
coils. Use a set of
test
probes for testing armature

circuits.
To
test
the armature for grounds, touch
one point of the
test
probes to a commutator
seg­
ment and touch the other point to the core or shaft.
Do not touch the points to the bearing surface or
to the brush surface as the arc formed
will
burn
the smooth finish. If the lamp lights, the coil con­
nected to the commutator
segment
is grounded.

H-114.
Field
Coils

Using
test
probes, check the field coils for both ground and open circuits. To
test
for ground, place
one probe on the motor frame or
pole
piece and
touch the other probe to the field coil terminals.
If
a ground is present, the lamp
will
light.

To
test
for open circuits, place the probes on the
field coil terminal and on an insulated
brush.
If
the light
does
not light, the coil is open circuited.

H-115.
Brush
Holder Inspection

Inspect
brush
holders for distortion, wear, and other
damage.
Check
that brush holders pivot freely on

their
pivot pins.
Check
brush spring tension with

a
spring scale. Hook the spring scale under the
brush
holder at the brush and
pull
on a line
paral­

lel
to the side of the
brush.
Note
scale reading just
as brush leaves commutator. Tension must be 35 oz. [9,925 kg.] minimum. Replace brush springs
if
tension is insufficient.

H-116.
Solenoid
Coils

Check
solenoid coil as follows:

a.
Remove screw from motor terminal of solenoid

and
bend field coil leads away from terminal.
Con­
nect terminal to ground with a heavy jumper wire.
See
Fig.
H-48.

b.
Connect a 12-volt battery, a high-current
vari­

able resistance, and an ammeter of 100 amperes

capacity
in series
between
S terminal of solenoid

and
ground; battery negative is to be connected
to ground. Connect a heavy jumper wire from
solenoid base to ground terminal of battery.
Con­

nect a voltmeter
between
base of solenoid and

small
S terminal of solenoid. Refer to Fig. H-48.
12455

FIG.
H-48—TEST CONNECTIONS,
STARTER
SOLENOID
COIL
1— S
Terminal

2—
Solenoid

3—
Ground
Connection 4—Voltmeter 5—Ammeter
6—
12-Volt
Battery
7—
Ground
Connection*
c.
Slowly decrease resistance until voltmeter
read­

ing increases to 10 volts.
Note
ammeter reading.

This
is current drawn by both windings in
parallel
;

it
should be 42 to 49 amperes at 10 volts, with solenoid at room temperature.

d.
Disconnect jumper wire from motor terminal
of solenoid. Increase resistance until voltmeter

reads
10 volts;
note
ammeter reading.
This
is
cur­

rent
drawn by hold-in winding only; it should be 10.5 to 12.5 amperes at 10 volts, with solenoid at
room temperature.
e. If solenoid windings do not rest within specifi­ cations given, replace solenoid switch assembly.

H-117.
Starting Motor Reassembly

a.
Lubricate
shift lever linkage and fasten in drive housing with lever stud.

Caution:
Do not lubricate solenoid plunger or solenoid cylinder.

b.
Install
return spring on solenoid plunger and

insert
plunger into solenoid cylinder. Apply sealing
compound on both sides of solenoid flange where it

extends
between
drive housing and field frame.

Attach
plunger to shift lever with fulcrum pin.

Fasten
solenoid to drive housing with two mount­
ing screws.

c.
Lubricate
armature shaft with silicone grease.
Install
assist spring and drive assembly on shaft

with
pinion outward.

d.
Install
pinion
stop
retainer on armature shaft

with
recessed side outward. Place a new snap ring on drive end of shaft and hold it in place with a
hard
wood block. Strike block with hammer to
force snap ring over end of shaft; slide the ring
down into
groove
in shaft. See Fig. H-49, left hand view. 209

'Jeep'
UNIVERSAL
SERIES SERVICE
MANUAL

H
Note:
Pinion clearance cannot be adjusted. If
clearance is not correct, motor must be disassem­
bled and checked for the above mentioned defects.

Any
defective parts must be replaced.
H-118. Starting Motor Test —
Genera!

To
obtain
full
performance data on a starting motor, or to determine the cause of abnormal
operation, the motor should be submitted to no-
load and locked armature
tests,
with equipment designed for such
tests.
A high-current variable resistance is required to obtain the specified volt­
age at the starting motor.
This
is necessary since
a
small variation in the
voltage
will
produce a
marked
difference in the current
drawn.

H-119.
Starting Motor No-Load Test

This
test
requires a DC voltmeter capable of
read­

ing
voltages
in a 12-volt
circuit,
a DC ammeter

with
maximum range of several hundred amperes,
a
high-current variable resistance, an rpm. in­

dicator,
and a fully-charged, 12-volt battery.

a.
Connect a jumper lead
between
S terminal
and
large battery terminal of starter solenoid.
Con­
nect voltmeter
between
either of
these
terminals (positive) and motor frame (negative, ground).

Connect
ammeter and variable resistance in series

between
positive terminal of battery and battery

terminal
of solenoid. Set up rpm. indicator to show starting motor speed.
b.
Initially,
adjust variable resistance to a value of
approximately .25 ohm. To complete the
circuit,

connect negative terminal of battery to motor

frame.
Adjust variable resistance to obtain a volt­ meter reading of 10.6 volts;
note
speed of starting motor and ammeter reading. Motor speed should
be
6750
to
10,500
rpm.; ammeter reading should
be 50 to 80 amperes.
c. Rated speed and current indicate normal condi­
tion of the starting motor. Low speed and high
cur­
rent
may show friction; this could be caused by
tight, dirty, or worn bearings, bent armature shaft,

or
a
loose
field
pole
shoe
dragging against the

armature.
It could also be caused by a short-cir­ cuited armature, or by grounded armature or field
coils.

d.
Failure
to operate and high current indicates

a
direct short circuit to ground at either the battery

terminal
or field coils.
e.
Failure
to operate and no current are usually
caused by broken brush springs, worn brushes, high insulation
between
commutator
bars,
or
some
other
condition preventing
good
contact
between
the brushes and commutator. It can also be caused by
open circuit in either the field coils or armature coils.
f. Low speed and low current show high resistance due to poor connections, defective leads, dirty com­
mutator, or one of the conditions mentioned in e,
above.
g. High speed and high current indicates a short
circuit
in the field coils. H-120-
Locked
Armature Test

This
test
requires a DC voltmeter with range ap­

propriate
to read
voltages
in a 12-volt
circuit,
a DC
ammeter with maximum range of several hundred
amperes, a high-current variable resistance, a
clamping fixture to lock
together
the motor shaft

and
case, and a fully-charged 12-volt battery.

a.
Connect a jumper lead
between
S terminal and
large battery terminal of starter solenoid. Connect
voltmeter
between
either of
these
terminals (posi­
tive) and motor frame (negative, ground). Connect
ammeter and variable resistance in series
between
positive terminal of battery and battery terminal
of solenoid.
Install
clamping fixture to lock motor
shaft and case
together
securely.
b.
Initially,
adjust variable resistance to approxi­
mately .05 ohm. To complete the
circuit,
connect
negative terminal of battery to motor frame. Ad­

just
variable resistance to obtain a voltmeter
read­
ing of 4.0 volts. Ammeter reading should be 280
to 320 amperes.

H-121.
Solenoid Starter Switch — Delco

The
solenoid-type switch is mounted directly on
the starting motor.
This
type of switch is energized
by turning the ignition key to the extreme right position. Should the solenoid switch
fail
in service

it
is necessary to install a new assembly.

Should
a starting motor
fail
to deliver maximum power the fault may be due to
voltage
drop at the

starter
switch contacts due to corrosion or burning.

Check
the switch by comparing the
voltage
at the
battery across the terminals. The
voltage
drop
should not exceed .05 volts per 100 amperes.
In
order to remove the starter solenoid, it is neces­

sary
to remove the starter assembly.

H-122.
ELECTRICAL
INSTRUMENTS

H-123.
Fuel
Gauge —
CJ-3B

The
fuel
gauge
circuit is composed of the indicating

unit,
mounted on the instrument panel, and the
fuel tank unit, connected by a single wire through the ignition switch.

Should
the
gauge
fail
to register, check all wire con­ nections to be sure they are tight and clean; also
be sure both units are well grounded. If, after this
check, the
gauge
does
not indicate properly, remove
the wire from the tank unit and connect it to a
new tank unit which must be grounded to the tank

or
frame for
test.
Turn
the ignition switch "ON"
and
move
the float arm through its range of travel,
watching the dash unit to determine if it indicates
correctly.
If it fails to do so the trouble is probably

in
the dash unit and it should be replaced.

Should
a new tank unit be unavailable for this
test,
disconnect tank unit wire at the instrument panel

gauge.
Connect one lead of a 12 V, 1 CP
test
light
to the instrument panel unit terminal and with the
ignition switch
"ON"
ground the other lead. If the
unit is operating correctly the pointer
will
move

approximately three-quarter across the
dial.
Do not attempt to repair either unit; replacement
is the only precedure. 211

H

ELECTRICAL
SYSTEM
H-124. Testing Indicators and Gauges

Two
gauges
(fuel and temperature) and two in­ dicators (oil pressure and battery charge) that are
located in the instrument cluster are electrically operated.

The
fuel
gauge
is connected by a single wire to a
float-and-slide-rheostat sending unit in the fuel
tank.

The
temperature
gauge
is connected by a single

wire
to a resistance-type sending unit mounted on the engine.

The
battery charge indicator operates when there
is a difference in potential
between
the generator
and
the battery
.The
battery charge indicator lights
when the generator is not charging the battery. The
indicator
light
goes
out when the generator
begins

to charge the battery.

The
oil pressure indicator is connected by a single

wire
to a diaphragm switch located on the engine.
When
engine
oil pressure is low or zero and the
ignition switch is on, the oil pressure indicator
will

light. When
engine
speed is increased slightly above idle speed, raising the oil pressure to approximately 6 psi. [0,2 kg-cm2], the diaphragm switch
will
open the circuit and the indicator light
will
go out.

A
voltage
regulator maintains a constant
voltage
to the
gauges
in normal operation. On early vehicles,
this
voltage
regulator was mounted on the
rear
of
the instrument cluster. On current vehicles, the
voltage
regulator is integral with the fuel
gauge.

Should
trouble
develop
in the
gauges,
first check the regulator (fuel
gauge
on current production vehicle). If the
voltage
to the regulator is below 10 volts system low
gauge
readings
will
result.
Voltage in
excess
of 16 volts
will
not affect
gauge

readings but may result in premature wear of the
regulator contacts. If the
voltage
to the regulator is

within
the above limits, check the electrical con­ nections to the regulator (or fuel gauge), especially
the ground connection. If the readings of all the
gauges
is too high, or they all read too low, replace
the regulator (or fuel gauge).

If
the temperature
gauge
or heat indicator in the
instrument cluster have failed, the cause may
originate from the jumper bar shorting out against the instrument case.
Check
the jumper bar
between

the temperature
gauge
and heat indicator at the

rear
of the instrument case. On later production vehicles, the jumper bar is covered with an in­
sulating
sleeve
to protect it from shorting out
against the instrument case. If the jumper bar

does
not have this
sleeve,
either install one or

wrap
the bar with plastic electrical tape to
half

an
inch [12,7 mm.] from each end. When installing the jumper bar, be sure the curved
segment
is
closest to the fuel
gauge.

Should
only one of the two
gauges
register incor­
rectly,
check the lead wire from the
gauge
to the
sending unit for shorts or open connections. Next disconnect the
gauge
from the sending unit, and
connect the
gauge
to a new fuel tank sending unit

which
has been grounded to the vehicle.
If
the
gauge
registers incorrectly when operating the new unit,
replace the
gauge;
if correctly, replace the sending

unit.

Should
a new fuel tank unit not be available for testing, use a 12-volt
test
light in its place. When
the
gauge
is operating correctly, the pointer
will

move
approximately three-quarters across the
dial.

On
some
vehicles, the temperature
gauge
may
register on or
close
to the H (hot)
mark
when
coolant temperature is
190°F.
to
200°F.
[88°C.
a

93°C.].
In such cases, a 25-ohm,
1-watt
resistor
may be installed on the temperature
gauge
which

will
place the pointer just beyond the center
mark
at a coolant temperature of
190°F.
to
200°F.
Install

the resistor
between
the two terminals on the back
of the
gauge.
Insulate the
exposed
leads of the resistor with electrical tape.

If
the oil pressure indicator
does
not indicate cor­

rectly,
first check the light bulb. Next check all
connections and lead wires. If, after all possible

defects
are corrected, the indicator light
does
not go on and off properly, then the diaphragm type
switch in the cylinder block should be replaced.

H-12S.
LIGHTING SYSTEM The
wiring of the lighting systems is shown in
the wiring diagrams, which indicate the various units in relation to their positions in the vehicle.
The
wires in the various circuits are of different
colors or are marked by tracers to aid when check­
ing individual circuits.

The
lighting circuits of all models are protected by

an
overload circuit breaker mounted on the back of the main light switch and no replaceable fuse is
required.

The
upper and lower headlight beams are con­
trolled by a
foot
switch located on the toe board
to the left of the clutch pedal.
H-126.
Main
Light
Switch

This
switch is a dual functioning unit having two

push-pull
positions and a rotary action. When
pulled out to the first position, the front parking
and
tail
lights are turned on. When pulled all the
way out to the second position, the headlights and
tail
lights are turned on. Rotating the switch to
the right dims the instrument cluster lighting.

The
switch may be removed from the instrument
panel by first loosening the set screw in the control
knob and removing the knob. The retaining nut may then be removed and the switch removed
through the
rear
of the instrument panel.
FIG.
H-51—MAIN
LIGHT
SWITCH
(EARLY)

1—
Battery
4—Parking Lights
2—
Rear
Lights 5—Auxiliary

3—
Head
Lights
212

'Jeep'
UNIVERSAL
SERIES SERVICE
MANUAL
H

FIG.
H-52—MAIN
LIGHT SWITCH (LATE)
1—
Circuit
Breaker

2—
Light
Switch

3—
Rear
Lights

4—
Head
Lights
5—
Parking
Lights
The
light switch shown in
Fig.
H-51 was superseded
by the one shown in
Fig.
H-52.

H-127.
Headlight Dimmer Switch To
remove the headlight dimmer switch, first raise
the hood and disconnect the wires attached to the

switch.
Then
remove the two screws that hold the

dimmer
switch to the floor board. Remove the

switch.
Check
the operation of the dimmer switch

with
a
test
light. A
circuit
across two different pairs of contacts (one to headlights, the other to the
high-beam indicator light) should alternately light
the
test
lamp when the switch is operated.
H-128.
Stop Light Switch
The
stop
light switch is of the diaphragm type.

Should
the switch
become
inoperative, it is neces­

sary
to install a new one.
Current
production vehicles are equipped with two
stop
light switches
that operate independently of each other. Both
switches are located along the
left
side of frame, in the front and
rear
brake lines.

Caution:
Do not apply the brakes while making
this exchange as air may enter the hydraulic line.
Bleed
the brakes after replacing the switch.

Fig.
H-54 shows the wiring of the
stop
light
circuit.
11500

FIG.
H-53—STOP
LIGHT SWITCH
FIG.
H-54—STOP
LIGHT CIRCUIT

1— Stop
Light
Switch
2—
Light
Switch

3—
Tail
Light
H-129. Head Lamp Service

H-130.
Head Lamp Replacement

Refer
to Fig. H-59.

Each
sealed beam head lamp can only be replaced as a
complete
unit.

A
sealed beam unit may be replaced by the fol­ lowing procedure:

a.
Remove door screw.

b.
Remove door.

c.
Remove retaining screws and retaining
ring.

d.
Remove sealed beam unit.
Installation
of sealed beam unit is the reverse of
above procedure. When replacing head lamps,

check
lamp aim following procedures described in

Par.
H-132.

FIG.
H-55—PARKING
LIGHT (EARLY)

1—
Bezel

2—
Lens

3—
Bulb

4—
Gasket
5—
Housing
and Cable

6—
Screw
213

H

ELECTRICAL
SYSTEM

14379

FIG.
H-56—PARKING
AND SIGNAL LIGHT (LATE) 1—
Screw

2—
Lens
3—
Gasket

4—
Bulb
5—
Cable

6— Housing H-131. Head
Lamp
Aiming Preparation

All
Jeep Universal-series lamps must be aimed on
the low beam. Lamps may be aimed either with mechanical aimers or by using a screen. If me­

chanical
aimers C-3674 are used,
follow
instruction
supplied with the aiming equipment. If a screen is to be used, preparation for aiming is as follows:

a.
Locate the vehicle in a darkened area with a level floor area and with a screen (may be a wall) having a nonreflecting white surface. A reference
line should be marked on the floor 25
feet
[7,62 m.]
away from and parallel to the screen. Position the vehicle perpendicular to the screen and with the
front head lamps directly over the reference line.
b. Locate the middle
tape
on the screen so that
it is aligned with the center line of the vehicle.
c. Equalize all tire pressures.

d.
Rock the vehicle from side to side to equalize springs and shock absorbers.
e. Measure the distance
between
vehicle head lamp centers.
Then,
position marker
tapes
vertically on
the screen to the right and
left
of the middle
tape
at half this distance.

f.
Measure the distance from the center of each
lamp to the surface on which the vehicle rests.
Position a marker
tape
horizontally on the screen

FIG.
H-57—TAIL, STOP AND

DIRECTIONAL
LIGHT
1—
Screw

2—
Lens

3—
Gasket

4—
Bulb
5— Housing and Cable Assembly
6— Nut and Lockwasher 10441
FIG.
H-58—TAIL AND
STOP LIGHT (EARLY)

1
—Ring

2—
Lens
3—
Gasket

4—
Retainer
5—
Bulb
6—
Gasket

7— Housing and Socket 214

'Jeep*
UNIVERSAL
SERIES
SERVICE
MANUAL
H
FIG.
H-59—HEAD LAMP

1—
Door

2—
Retaining
Screw

3—
Retaining
Ring

4—
Sealed
Beam
Unit
5—
Mounting
Ring

6—
Adjusting
Screw 7—
Housing

8—
Wires

9—
Door
Screw 310669
to cross the vertical
tapes
at the measured height
of each lamp center respectively.

g.
Remove the head lamp doors.
h.
Clean
the head lamps.

H-132.
Aiming Head Lamps

a.
Turn
the headlights on low beam. Cover the lamp not being aimed. Be sure to use the horizontal reference line on the screen that is the same dimen­
sion as the vehicle lamp height.
b.
Turn
the vertical aiming screw counterclock­
wise until the lamp beam is considerably lower

than
the horizontal reference line on the screen.
Then,
turn
the screw clockwise until the top
edge

of the high intensity
area
is even with the horizontal

line.
See Fig. H-60.
I
(T)

JT)

1'.'' | '':'
11460

FIG.
H-60—HEADLIGHT AIMING
CHART
1—
Vertical
Tape,
Left
Lamp
Center

2—
Vehicle
Centerline

3—
—Vertical
Tape,
Right
Lamp
Center
4—
Zone
of Greatest Intensity
5—
2
*
(Two Inches)
6— 25'0
'
7—
2
*
(Two Inches)
8—
Height
of
Lamp
Centers
9—
Horizontal
Tape

Note:
Always bring the beam into final position
by turning both aiming screws clockwise so that
the unit is held under proper tension when the operation is complete.

c. Turn
the horizontal aiming screw counterclock­
wise until the beam is off.
Then,
turn
the same
screw
clockwise until the
left
edge
of the high
intensity area is 2" [5,08 cm.] to the right of the
lamp center line. See Fig. H-60.

d.
Cover the lamp that has been aimed and aim
the other lamp using the same procedure.
e.
Carefully
reinstall the head lamp doors.

H-133.
Parking
and
Turn Signal Light
The
parking lights are mounted in the radiator

guard
panel just below the headlights. These lights

are
on only when the main switch control knob is
pulled
out to the first notch.

To
replace a parking lamp, remove two screws allowing the lens and colored reflector to be re­
moved. Replace the lamp, which is recessed back

in
the housing.

If
the
complete
parking light assembly is to be
removed for service or replacement, disconnect the

wire
plug at the back of the housing.
Then
remove
the nuts and lock washers securing the parking light assembly and remove out the front of the

panel.

H-134. Tail, Stop
and
Turn Signal Light

Refer
to Fig. H-57 and H-58.

The
tail
lights are mounted in the
rear
corner
posts

of the body. They are on whenever the main switch
control
knob is pulled out to any position.

a.
To replace a lamp, remove the snap ring on

early
models
and remove the lens; on late
models
remove lens screws, lens and gasket.
Clean
lens
and
reflector before replacing.
b. To remove the parking and
tail
light housing,
disconnect wiring, remove the two nuts and lock
washers securing
tail
light assembly to body and remove from
rear
of body.

H-135-
Backup Lights •
Refer to Fig. H-61.

The
backup lights on late production vehicles are located on the
rear
of the vehicle directly below
the
tail
light. The backup lights are actuated
through a switch when the ignition is on and the

transmission
is in reverse. 215

ELECTRICAL
SYSTEM

14385

FIG.
H-61—BACK-UP
LIGHT
1—
Snap
Ring
2—
Lens

3—
Gasket

4—
Bulb
5—
Housing
and
Cable
On
late production
T14A
transmissions the backup
light switch is threaded into the right
rear
corner
of the cover housing and is activated by the move­
ment of the reverse shift
rail.

The
backup light switch is not serviceable and
must be replaced if defective.

Bulbs
can be replaced by removing the snap
ring,

lens and gasket from the assembly.

H-136.
License Plate
Light

On
CJ-5A,
CJ-6A
and current production vehicles
the license plate light is attached to the tailgate
and
is of the swing-type design to enable the
license plate to be visible when the tailgate is in
the down psoition. The bulb can be changed by
removing
the clear plastic lens. On early production
vehicles the license plate light is integral with the

tail
light assembly.

H-137.
Horn
The
horn is mounted under the hood on the
left

front
fender. The horn is sounded by pressing the
button located at the top center of the steering
wheel.

To
remove the horn wire, disconnect the wire at
the snap connection at the base of the steering
column.
Pull
off the rubber horn button cap and
the brass contact cap from the steering wheel nut.

This
will
expose
the contact tip of the horn wire.

Pull
the wire out of the steering column from the top. Refer to Fig. H-62.

H-13S.
Directional
Signals

Fig.
H-63 shows the
wiring
of a
composite
direction­

al
signal
circuit.
The most frequent causes of
failure
in
the directional signal system are
loose
connec­
tions and burned-out bulbs. A flashing rate

approximately
twice the normal rate usually in­
dicates a burned-out bulb in the
circuit.
11087

FIG.
H-62—HORN
BUTTON 1—
Cap
2— Nut
3—
Horn
Button
Spring
Cup 4—
Ferrule

5—
Horn
Cable

6—
Contact
Disc

7—
Steering
Wheel
8—
Cup
9—
Bearing
Spring
Seat
10—
Steering
Column

11—
Tube

12—
Bearing

13—
Bearing
Spring

14—
Horn
Button
Spring

15—
Retainer
Spring
When
trouble in the signal switch is suspected it
is advisable to make the following
test
to definitely
locate the trouble before
going
to the effort of

removing
the signal switch. If, for example, the
right
rear
stop
light and right front parking light

are
inoperative and switch failure is indicated, first put the control lever in neutral position.
Then

disconnect the wire to the right side
circuit
and
touch it to or bridge it to the
"L"
terminal, thus
by-passing the signal switch. If the right side cir- 10609

FIG.
H-63—DIRECTIONAL SIGNAL
CIRCUIT

1—
Flasher

2—
Ignition
Switch

3—
Control
4—
Light
Switch
5— Stop
Light
Switch
216