light JEEP CHEROKEE 1988 Service Repair Manual

at road speeds, it may indicate that the ABS system has detected a
malfunction or has become inoperative. The system reverts to standard
non-anit-lock brakes. If both Red BRAKE light and Amber CHECK ANTI-
LOCK light are on, have vehicle serviced immediately.
Fig. 1: Instrument Panel Interior Controls
Courtesy of Chrysler Motors.
Fig. 2: Dash Gauges & Warning Lights (Gasoline Engines)
Courtesy of Chrysler Motors.

Fig. 3: Dash Gauges & Warning Lights (Turbo-Diesel Engines)
Courtesy of Chrysler Motors.

reading of .2 volt or less. If reading exceeds .2 volt, clean or
repair cables and connections in circuit. Connect a voltmeter at
following locations:
* Positive lead to battery positive post and negative lead
to cable clamp.
* Positive lead to battery negative post and negative lead
to cable clamp.
3) If reading is other than zero on voltmeter, clean or
repair cables and connections in circuit. Connect a voltmeter at
following location:
* Positive lead to battery positive post and negative lead
to starter solenoid lead to the field coils.
4) If reading exceeds .3 volt, clean or repair cables and
connections in circuit.
SOLENOID TEST
1) Connect a heavy jumper wire on starter relay between
battery and solenoid terminals. If engine cranks, solenoid is okay. Go
to RELAY TEST .
2) If engine does not crank, check wiring and connections
from relay to starter. Repair or replace as necessary. If engine still
fails to crank, starter is defective.
RELAY TEST
1) On automatic transmission/transaxle vehicles, put gear
selector in "NEUTRAL" or "PARK". On manual transmission/transaxle
vehicles, put gear selector in "NEUTRAL". Set parking brake and block
wheels. DO NOT remove relay connector. Using a 12-volt test light,
check for battery voltage between starter relay battery terminal and
ground.
2) Use a jumper wire on starter relay between battery and
ignition terminals. If engine cranks starter relay is good. If starter
does not crank go to next step.
3) Connect another jumper wire to starter relay between
ground terminal and ground. Repeat above test. If engine cranks,
starter relay is good. Inspect transmission linkage for improper
adjustment (automatic transmission), defective neutral safety switch
(automatic transmission) or poor ground connection between relay
housing and mounting surface.
TESTING (ON BENCH)
STARTER SOLENOID
1) With starter removed, disconnect field coil wire from
field coil terminal on starter. Using an ohmmeter, check for
continuity between solenoid and field coil terminals.
2) Check for continuity between solenoid terminal solenoid
housing. Continuity should be present in both tests. If continuity is
present, solenoid is good. If no continuity is present, replace
solenoid. Reconnect field coil wire to field coil terminal.
ARMATURE FOR SHORT CIRCUIT
Place armature in a growler and hold a thin steel blade
parallel 3/16" above core while rotating armature slowly. If armature

is shorted, blade will vibrate and be attracted to core. Replace
shorted armature.
ARMATURE FOR GROUND
Using a self-powered test light and touch one lead to
armature shaft and other lead to each commutator bar. See Fig. 1. If
light glows, armature is grounded and should be replaced.
Fig. 1: Testing Starter Armature for Ground
FIELD COILS FOR GROUND
Using a self-powered test light and touch one probe to series
field coil lead and other probe to field frame. If light glows,
replace field coil housing assembly.
DRIVE CLUTCH UNIT
While holding clutch housing, rotate pinion. Drive pinion
should rotate smoothly in one direction only (should not rotate in
opposite direction). If drive unit does not operate properly, or if
pinion is worn or burred, replace drive unit.

STE ER IN G C O LU M N S W IT C HES

1988 J e ep C hero ke e
1988 STEERING
Jeep Steering Column Switches
All Models
REMOVAL & INSTALLATION
TURN SIGNAL & HAZARD FLASHER SWITCHES
Removal & Installation
1) Place front wheels in straight-ahead position. Disconnect
battery negative cable. Remove the steering wheel. Refer to the
STEERING WHEEL & HORN REMOVAL article.
2) On models with A/T, place selector lever in "PARK"
position. Remove selector lever retaining pin and lever. Using 2
screwdrivers, remove lock plate cover. On models with tilt column,
remove tilt lever.
3) Using Plate Compressor (J-23653-A), compress lock plate.
If shaft has metric threads, use Metric Forcing Screw (J-23653-4)
prior to installing compressor on shaft. Remove and discard lock plate
snap ring. Remove plate compressor
NOTE: The lock plate is under strong spring tension. DO NOT
attempt to remove snap ring without using lock plate
compressor.
4) Remove lock plate, canceling cam, upper bearing preload
spring, spring seat and bearing race (thrust washer on some models).
Depress hazard warning switch while unscrewing from column.
5) On vehicles with A/T, use a paper clip to compress lock
tab retaining shift quadrant light wire in connector block. Disconnect
wire. On all models, remove turn signal lever attaching screw and
lever.
6) On vehicles with cruise control, disconnect 2 of 4 wires
at switch connector. Fold wires back along harness. Tape wires to
harness. Tape a string to harness to aid in removal.
7) Disconnect turn signal switch wire harness at bottom of
steering column. Tape around turn signal switch harness connector to
aid in removal. Remove turn signal switch attaching screws. Remove
switch. To install, reverse removal procedure.
LOCK CYLINDER
Removal
1) Remove horn button and steering wheel. Refer to the
STEERING WHEEL & HORN REMOVAL article. Remove turn signal switch.
Remove key warning buzzer switch and contacts as an assembly, using
needle-nose pliers.
2) On models with standard column, turn ignition lock
cylinder (clockwise) 2 detent positions beyond the "OFF/LOCK"
position. On models with tilt column, turn lock cylinder to "LOCK"
position. On all models, compress lock cylinder retaining tab and
remove lock cylinder from housing. See Fig. 1.

cylinder. Turn cylinder to "OFF-UNLOCK" position. Disconnect switch
from remote rod. Disconnect harness connectors at switch. Remove
switch.
Installation
Move switch slider to "ACC" position. Engage remote rod in
switch slider. Position switch on column, taking care not to move
slider. Hold key in "ACC" position while pushing switch down slightly
to remove slack in actuator rod. Install attaching screws. Connect
harness connectors.
IGNITION SWITCH
Removal (Comanche & Grand Wagoneer)
Remove lower instrument panel trim panel. Insert key in lock
cylinder. Turn cylinder 2 positions beyond the "OFF-UNLOCK" position.
Disconnect switch from remote rod. Disconnect harness connectors at
switch. Remove switch.
Installation
Move switch slider to "ACC" position. Move switch slider back
2 clicks to "OFF-UNLOCK" position. Engage remote rod in switch slider.
Position switch on column. DO NOT move slider while positioning
switch. Install attaching screws. Connect harness connectors.
Fig. 2: Exploded View of Jeep Steering Column Switch Assemblies
Courtesy of Chrysler Motors
TROUBLE SHOOTING
Refer to TROUBLE SHOOTING - BASIC PROCEDURES article in the
GENERAL TROUBLE SHOOTING section.

Fig. 1: Exploded View of RWD Steering Column Major Assemblies
Installation
1) On all models, aligning lower shaft with lower coupling
and insert shaft. Raise column assembly into position onto studs.
Loosely install nuts and washers in breakaway capsules. Pull column
rearward. Tighten nuts to specification. See TORQUE SPECIFICATIONS.
2) Install a new shift lever grommet using pliers and back-up
washer to snap the grommet into place. Use a multipurpose grease to
aid installation.
3) Connect gearshift cable rod to shift lever by snapping rod
into grommet with pliers. Adjust linkage. Place steering wheel on
shaft with master splines aligned. Place damper assembly inside
steering wheel (if equipped). Install steering wheel retaining nut.
Tighten to 45 ft. lbs. (61 N.m).
4) Install horn pad assembly. Refer to procedures in the
STEERING WHEEL & HORN REMOVAL article. Connect wiring connectors at
steering column jacket. Connect battery negative cable. Test operation
of lights and horn.
5) On models with A/T, install gearshift indicator pointer.
Slowly move gearshift lever from "LOW" position to "PARK" position,
pausing briefly at each selector position. Loosen and readjust to
align pointer with each position (if necessary). Install instrument
panel steering column cover.
STEERING COLUMN (FLOOR SHIFT)
The steering column with a floor mounted gearshift is
basically the same as previously described. Standard columns and
service procedures are identical except as described below.
* In place of rotating shift housing, there is a plastic shroud
which is fixed to lock housing. Shroud covers jacket and lock
inhibitor assembly. It is held in place by a tab that fits
under side cover and one screw. Shroud can only be replaced
by removing lock housing from jacket.

* The lock inhibitor assembly consists of a lever that engages
lock levers (preventing locking of steering shaft), a button
to operate lever and a return spring. Assembly is attached to
lock housing in same location as shift gate is on column
shift. Lower steering shaft bearing is mounted in an aluminum
support.
* A spring is attached between shift housing and column jacket.
This spring keeps housing rotated counterclockwise against
rubber bumper.
OVERHAUL
STANDARD COLUMN
NOTE: All columns are similar except for appearance of covers.
Some models use ignition key light, while others do not.
Disassembly and reassembly procedures cover all models. Some
procedures may not apply to every steering column.
Disassembly
1) Pry out wiring trough retainers. Lift off trough. New
retainers may be required for reassembly. Use masking tape to protect
paint and a deep socket to back-up housing. Drive retaining roll pin
out with a punch to remove shift lever.
2) Remove breakaway capsules. Secure column in vise by
clamping at column bracket. DO NOT distort column. Remove turn signal
lever cover-to-lock housing attaching screws. Remove cover. Remove
wiper/washer switch assembly. Pull switch cover up wiper/washer lever.
Remove lever sleeve-to-switch attaching screws.
3) Rotate wiper/washer shaft to full clockwise position.
Remove shaft from switch. Remove turn signal switch and upper bearing
retaining screws. Remove retainer. Lift switch upward out of way.
Unclip horn ground wire. Remove ignition key light retaining screw.
Lift ignition key light out of way.
4) Remove bearing housing-to-lock attaching screws. Remove
snap ring from upper end of steering shaft. Remove bearing housing
from shaft. Remove lock plate spring and lock plate from shaft. Remove
shaft through lower end of column.
5) Remove ignition key. Remove warning switch retaining
screw. Lift out key warning switch. Remove 2 ignition switch-to-column
jacket retaining screws. See Fig. 2. Remove ignition switch by
rotating switch 90 degrees on actuator rod. Remove 2 dimmer switch
retaining screws. Disengage dimmer switch from rod.

1) Remove lower bracket assembly-to-lower bearing support
bolts. On column shift models, remove shift housing cover. On floor
shift models, unsnap and remove shroud extensions. Remove wiring
protector from column jacket.
2) Mount column in vise at capsule bracket. Mount Holding
Fixture (C-4132) onto column. Mount holding fixture and column in
vise.
3) Remove tilt lever. To remove hazard warning knob, push in
knob while unscrewing. Remove ignition key light assembly. Pull knob
off wiper/washer switch assembly. Pull hider up switch lever. Remove 2
sleeve-to-wiper/washer switch retaining screws. Remove sleeve.
4) Rotate shaft in wiper switch fully clockwise. Remove shaft
by pulling straight out of wiper/washer switch. Carefully remove
plastic cover from lock plate. Using Lock Plate Depressor (J-23653-A
for Jeep), depress lock plate. Pry retaining ring from groove.
5) Remove lock plate, canceling cam and upper bearing plate.
Remove switch actuator screw and arm. Remove 3 turn signal switch
attaching screws. Place shift bowl in "LOW" position. Wrap a piece of
tape around wires to prevent snagging when removing switch. Remove
switch and wiring.
6) Remove key light. Place lock cylinder in "LOCK" position.
Insert a small screwdriver into slot next to switch mounting screw
boss. Depress spring latch at bottom of slot. Remove lock.
7) Using a paper clip, remove key warning switch. Bend one
end of clip into a hook. Insert hook into exposed loop of wedge
spring. Pull clip. Remove spring and switch. DO NOT allow spring to
fall into steering column.
8) Remove 3 housing cover screws. Remove housing cover.
Remove wiper/washer switch. Using a punch, press out wiper switch
pivot pin (if necessary). Tilt lever opening shield and dimmer switch
actuator rod may be removed from cap (if necessary).
9) Place column in fully upright position. Using a large
Phillips screwdriver, remove tilt spring retainer. Insert screwdriver
in opening. Push in approximately 3/16". Turn approximately 1/8 turn
clockwise until ears align with grooves in housing. Remove spring and
guide.
10) Remove dimmer switch mounting screws. Remove dimmer
switch. Separate dimmer switch from rod by pulling on rod. Push upper
steering shaft in far enough to remove steering shaft inner race seat
and inner race. With ignition switch in "ACC" position, remove
ignition switch mounting screws and switch. Place Pivot Pin Remover
(J-21854-01 for Jeep) over pivot pin. Thread small portion of screw
firmly into pin.
11) Hold screw from turning with one wrench while turning nut
clockwise with a second wrench to withdraw pivot pin from support.
Remove opposite pivot pin in same manner. Use tilt release lever to
disengage lock shoes. Remove bearing housing assembly by pulling
upward to extend rack fully.
12) Move housing assembly left to disengage rack from
actuator. Rotate housing clockwise to free dimmer switch actuator rod.
Remove activator assembly. Remove coupling from lower end of steering
shaft. Double coupling is retained to shaft with a roll pin. Remove
shaft assembly from upper end.
CAUTION: DO NOT drop or bump steering shaft as plastic pins may shear.
13) Disassemble steering shaft assembly by removing center
spheres and anti-lash springs. See Fig. 9. Remove 4 bolts securing
support to lock plate. Remove support from end of column jacket.
Remove 2 attaching screws and shift gate from support (if necessary).
Dimmer switch is removed with support.

opening. Remove wave washer. Remove bowl from jacket. Remove shift
lever spring from bowl by winding spring up with pliers and pulling
out.
16) By removing spring retaining screw and moving spring
clockwise, remove lock bolt spring. Using a hammer and punch, lightly
tap drive shaft from sector. Remove drive shaft, sector and bolt.
Remove rack, spring and shim (if used). Remove tilt release lever pin.\
17) Relieve load on lever release by holding shoes inward.
Wedge a block between top of shoes and bearing housing. Remove release
lever and release lever spring. Using punch and hammer, remove lock
shoe pin. Remove lock shoes and lock shoe springs.
18) Remove bearings from bearing housing only if they are to
be replaced. Remove separator and ball from bearing. Place housing on
work bench. Using a punch against back surface of race, hammer race
from housing. DO NOT reuse bearings.
Reassembly
1) During reassembly, coat all friction surfaces with
multipurpose grease. Clamp column in vise so that both ends of column
are accessible. Install bearings in bearing housing (if removed).
2) Install lock shoe springs, lock shoes and shoe pin in
bearing housing. Use a .180" rod to line up shoes for pin
installation. With tilt lever opening on left side and with the shoes
facing up, the 4 slot shoe should also face up.
3) Install spring, release lever and pin in bearing housing.
Install drive shaft in housing. Lightly tap sector onto drive shaft
far enough to bottom on shaft. Install lock bolt. Engage lock bolt
with sector cam surface. Install rack and spring. Block tooth on rack
should engage block tooth on sector.
4) Install external tilt release lever. Install bolt spring
and spring retaining screw. Tighten to 35 INCH lbs. (4 N.m). Install
shift lever spring in bowl by winding up with pliers and pushing in.
Slide bowl into jacket. Install wave washer and jacket mounting plate.
5) Work jacket mounting plate into jacket notches by tipping
jacket mounting plate toward bowl hub at 12 o'clock position and under
jacket opening. Slide jacket mounting plate in jacket notches.
Carefully install shift tube in lower end of jacket.
6) Align key in tube with keyway in bowl. Using Puller (J-
23073-01 for Jeep), pull shift tube into bowl. See Fig. 11. DO NOT
push or tap on end of shift tube. By pulling bowl up and compressing
wave washer, install thrust washer and retaining pin.
Fig. 11: Installing Shift Tube on Models With Tilt Wheel
7) Slide dimmer switch actuator rod through hole in support.
Feed rod between bowl and jacket. Install support by aligning notch in
support with notch in jacket. Insert 4 screws through support into