1988 JEEP CHEROKEE key battery

BATTERY SPECIFICATIONS
CAUTION: When battery is disconnected, vehicles equipped with
computers may lose memory data. When battery power is
restored, driveability problems may exist on some vehicles.
These vehicles may require a relearn procedure. See COMPUTER
RELEARN PROCEDURES article in the GENERAL INFORMATION
section.
All gasoline engine equipped models use group 58 batteries
with 390 or 475 amp cold crank rating. Models with 2.1L Turbo Diesel
engine use group 24 batteries with a 815 amp cold crank rating.
CAUTIONS & WARNINGS
REPLACING BLOWN FUSES
Before replacing a blown fuse, remove ignition key, turn off
all lights and accessories to avoid damaging the electrical system. Be
sure to use fuse with the correct indicated amperage rating. The use
of an incorrect amperage rating fuse may result in a dangerous
electrical system overload.
BATTERY WARNING
WARNING: When battery is disconnected, vehicles equipped with
computers may lose memory data. When battery power is
restored, driveability problems may exist on some vehicles.
These vehicles may require a relearn procedure. See COMPUTER
RELEARN PROCEDURES article in GENERAL INFORMATION section.
BRAKE PAD WEAR INDICATOR
Indicator will cause a squealing or scraping noise, warning
that brake pads need replacement.
DIESEL FUEL ANTI-FUNGAL ADDITIVES
CAUTION: If fuel contamination due to fungi or other microorganisms is
suspected a fuel additive with a biocide may be used. Follow
the manufacturers dosage as recommended on product label. Use
biocides ONLY when necessary, excessive use can may cause
other fuel system problems.
DIESEL FUEL CONTAMINATION
WARNING: Diesel fuel system may be contaminated with fungi or other
microorganisms. Keep contaminated fuel away from open skin
cuts or sores to prevent skin irritation or infection.
DIESEL FUEL REQUIREMENTS
CAUTION: All diesel engines are to use Diesel Fuel #2 when the outside
temperature is above 20\bF (-7\bC). In temperatures that are
below 20\bF (-7\bC) use Diesel Fuel #1, this will reduce the
chance of the fuel thickening and forming wax.
Note: A Diesel Fuel #1 & #2 combination (Blended Fuel) may be\
used, and is recommended for mild winter driving.

TAILGATE WINDOW REGULATOR & MOTOR
Removal (Grand Wagoneer)
1) Remove carpet (if equipped) and tailgate access cover.
Remove retainers attaching regulator arms to channel. Disengage
regulator arm pins from channel, and raise glass.
2) Carefully support glass in raised position. Disconnect
wiring harness from safety switch. If regulator attaching screws are
covered by sector gears, place a jumper wire between terminals of
safety switch connector.
NOTE: If regulator attaching screws are accessible, remove
regulator attaching screws and regulator.
3) Place key in tailgate switch and operate motor until
regulator attaching screws are accessible. Hold regulator in this
position, and wedge a screw between meshing teeth.
4) Remove regulator attaching screws and regulator. Using a
large screwdriver, release spring tension from tension bracket. Remove
motor attaching screws and motor.
Installation
To install, reverse removal procedure.
SIDE WINDOW MASTER SWITCH
Removal
1) Disconnect battery negative cable. Remove retaining screws
and escutcheon. Remove switch housing screws.
2) Pull switch out to expose wires. Disconnect terminal plate
from switch. Depress retainer clips through holes in switch housing,
and remove switch.
Installation
To install, reverse removal procedure.
FRONT & REAR DOOR REGULATORS & MOTORS
Removal
1) Raise window half way up. Disconnect battery negative
cable. Remove door trim panel and water shield.
2) Insert a drift punch into hole in door inner panel, or use
masking tape to hold window half way up. Remove regulator arm retainer
clip, and remove arm from bottom window channel.
3) Disconnect wires from motor. Remove inner door panel-to-
regulator nuts and bolts. Remove regulator and motor assembly.
Installation
To install, reverse removal procedure.

computers may lose memory data. When battery power is
restored, driveability problems may exist on some vehicles.
These vehicles may require a relearn procedure. See COMPUTER
RELEARN PROCEDURES article in GENERAL INFORMATION section.
REPLACING BLOWN FUSES
Before replacing a blown fuse, remove ignition key, turn off
all lights and accessories to avoid damaging the electrical system. Be
sure to use fuse with the correct indicated amperage rating. The use
of an incorrect amperage rating fuse may result in a dangerous
electrical system overload.
BRAKE PAD WEAR INDICATOR
Indicator will cause a squealing or scraping noise, warning
that brake pads need replacement.
BRAKE WARNING LIGHT
CAUTION: If BRAKE warning light is on with parking brake disengaged
and engine running, there may be a problem in the hydraulic
brake system. Braking effort, brake pedal travel and
stopping distances may increase.
CATALYTIC CONVERTER
To prevent catalytic converter overheating, DO NOT allow
engine to idle for more than 20 minutes.
COMMAND-TRAC (4WD)
CAUTION: NEVER operate a Command-Trac vehicle in 4WD on dry,
hard-surfaced roads for a sustained period. Use 4L only
when needed for added pulling power. Operating vehicle in
4WD mode on such roads will cause stress and possible
damage to components, as well as make shifting difficult.
To reduce shifting effort, drive vehicle in Reverse for a
few feet, or drive off hard-surfaced road momentarily to
allow tire slippage.
FRONT AND REAR DIFFERENTIALS (4WD)
CAUTION: DO NOT use water, steam, kerosene or gasoline for flushing
a differential. ONLY use a flushing oil.
TRAC-LOK DIFFERENTIALS (4WD)
CAUTION: DO NOT flush a rear axle Trac-Lok differential. Trac-Lok
differentials may be cleaned only by disassembling the
unit and wiping the components with clean, lint-free cloth.
CAUTION: NEVER attempt to engage Low range when vehicle is moving
faster than 2-3 MPH, as transfer case damage may result.
GASOLINE CONTAINING ALCOHOL
CAUTION: Exclusive use of gasohol is not recommended. Vehicle test
results have shown that significant fuel system corrosion
can result when gasohol is used exclusively.

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.

WIR IN G D IA G RAM S

1988 J e ep C hero ke e
1988 Wiring Diagrams
Jeep
Cherokee & Wagoneer
IDENTIFICATION
COMPONENT LOCATION MENU
COMPONENT LOCATIONS TABLE








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Component Figure No. (Location)
A/C & Htr Systems ............................... 5 (A-D 16-19)
Alternator ............................................ 1 (C 3)
Audio Alarm Module ................................... 7 (D 27)
Back-Up Lt Sw (M/T) .................................. 4 (D 12)
Battery ............................................... 1 (A 2)
Beam Sel Sw .......................................... 6 (E 23)
Brake Warning Sw ..................................... 6 (C 20)
Clock ................................................ 7 (E 27)
Clutch Switch ........................................ 4 (E 15)
Courtesy Lights ................................... 7 (C 24-26)
Cruise Ctrl Sys ................................... 4 (E 12-15)
Diag Conn D1 (2.5L) ................................... 3 (B 9)
Diag Conn D1 (4.0L) ................................... 2 (B 4)
Diag Conn D2 (2.5L) .................................. 3 (B 11)
Diag Conn D2 (4.0L) ................................... 2 (B 7)
DIR Hazard Sw ................................... 6 (D-E 20-21)
Door Switches ........................................ 7 (C 27)
Elect Ctrl Unit (2.5L) ............................. 3 (A 9-10)
Elect Ctrl Unit (4.0L) .............................. 2 (A 4-7)
Engine Compartment Lt ................................. 1 (C 1)
Fog Light Relay ....................................... 1 (D 2)
Fog Light Sw ...................................... 6 (E 21-22)
Fuel Pump Rly (2.5L) .................................. 3 (C 9)
Fuel Pump Rly (4.0L) ................................ 2 (E 5-6)
Fuel Tank Unit ....................................... 6 (B 20)
Fus Links ........................................... 1 (B 2-3)
Fuse Block ...................................... 4 (B-D 12-15)
4WD Switch ..................................... 6 (C 20, D 21)
Gear Sel Sw .......................................... 5 (C 16)
Glove Box Light ...................................... 7 (C 25)
Headlight Delay Module ............................... 6 (E 23)
Headlight Switch .................................. 6 (D 22-23)
Horn Relay ............................................ 1 (C 2)
Ignition Ctrl Mod (2.5L) ............................ 3 (B-C 8)
Ignition Ctrl Module (4.0L) ........................... 2 (E 4)
Ignition Key Warn Sw ................................. 7 (D 26)
Ignition Switch ................................... 4 (A 12-15)
Illum Lights .................................... 7 (C-D 24-25)
Instrument Cluster .............................. 6 (A-C 22-23)
Keyless Entry Module .............................. 7 (B 24-25)
Latch Rly (B+) (4.0L) ............................... 2 (B-C 4)
Power Antenna Rly .................................. 7 (D-E 27)
Power/Comfort Sw ..................................... 5 (D 19)
Power Door Lock Sys ............................. 7 (A-C 24-27)
Power Mirror Sw ................................. 7 (D-E 24-25)
Power Seat Sw ................................... 8 (A-B 28-29)