fuse JEEP CHEROKEE 1988 Service Owner's Guide

required because the part in question is no longer providing the
function for which it is intended, does not meet a vehicle
manufacturer's design specification or is missing.
Example:
An exhaust pipe has corroded severely and has a hole
in it through which exhaust gases are leaking. Replacement
of the exhaust pipe in this case is required due to
functional failure.
Example:
A brake rotor has been worn to the point where it
measures less than the vehicle manufacturer's discard
specifications. Replacement of the rotor is required
because it does not meet design specifications.
Some conditions indicate that a service or part replacement
is suggested because the part is close to the end of its useful life
or addresses a customer's need, convenience or request. If a
customer's vehicle has one of these conditions, the procedure may be
only to suggest service.
Example:
An exhaust pipe is rusted, corroded or weak, but no leaks are
present. In this case, the exhaust pipe has not failed.
However, there is evidence that the pipe may need replacement
in the near future. Replacement of the pipe may be suggested
for the customer's convenience in avoiding a future problem.
Example:
The customer desires improved ride and/or handling,
but the vehicle's shocks or struts have not failed. In this
case, replacement may be suggested to satisfy the customer's
wishes. In this case, replacement of the shocks or struts may
not be sold as a requirement.
A customer, of course, has the choice of whether or not a
shop will service his or her vehicle. He or she may decide not to
follow some of your suggestions. When a repair is required, a MAP shop
must refuse partial service on that system if, in the judgment of the
service provider, proceeding with the work could create or continue an
unsafe condition. When a procedure states that required or suggested
repair or replacement is recommended, the customer must be informed of
the generally acceptable repair/replacement options whether or not
performed by the shop.
When presenting suggested repairs to the customer, you must
present the facts, allowing the customer to draw their own conclusions
and make an informed decision about how to proceed.
The following reasons may be used for required and suggested
services. These codes are shown in the "Code" column of the MAP
Uniform Inspection & Communications Standards that follow:
Reasons to Require Repair or Replacement
A - Part no longer performs intended purpose
B - Part does not meet a design specification (regardless of
performance)
C - Part is missing
NOTE: When a repair is required, the shop must refuse partial
service to the system in question, if the repair creates
or continues an unsafe condition.

required because the part in question is no longer providing the
function for which it is intended, does not meet a vehicle
manufacturer's design specification or is missing.
Example:
An exhaust pipe has corroded severely and has a hole in it
through which exhaust gases are leaking. Replacement of the
exhaust pipe in this case is required due to functional
failure.
Example:
A brake rotor has been worn to the point where it measures
less than the vehicle manufacturer's discard specifications.
Replacement of the rotor is required because it does not meet
design specifications.
Some conditions indicate that a service or part replacement
is suggested because the part is close to the end of its useful life
or addresses a customer's need, convenience or request. If a
customer's vehicle has one of these conditions, the procedure may be
only to suggest service.
Example:
An exhaust pipe is rusted, corroded or weak, but no leaks are
present. In this case, the exhaust pipe has not failed.
However, there is evidence that the pipe may need replacement
in the near future. Replacement of the pipe may be suggested
for the customer's convenience in avoiding a future problem.
Example:
The customer desires improved ride and/or handling,
but the vehicle's shocks or struts have not failed. In this
case, replacement may be suggested to satisfy the customer's
wishes. In this case, replacement of the shocks or struts may
not be sold as a requirement.
A customer, of course, has the choice of whether or not a
shop will service his or her vehicle. He or she may decide not to
follow some of your suggestions. When a repair is required, a MAP shop
must refuse partial service on that system if, in the judgment of the
service provider, proceeding with the work could create or continue an
unsafe condition. When a procedure states that required or suggested
repair or replacement is recommended, the customer must be informed of
the generally acceptable repair/replacement options whether or not
performed by the shop.
When presenting suggested repairs to the customer, you must
present the facts, allowing the customer to draw their own conclusions
and make an informed decision about how to proceed.
The following reasons may be used for required and suggested
services. These codes are shown in the "Code" column of the MAP
Uniform Inspection & Communications Standards that follow:
Reasons to Require Repair or Replacement
A - Part no longer performs intended purpose
B - Part does not meet a design specification (regardless of
performance)
C - Part is missing
NOTE: When a repair is required, the shop must refuse partial
service to the system in question, if the repair creates
or continues an unsafe condition.
Reasons to Suggest Repair or Replacement

FU SES & C IR CUIT B REA K ER S

1988 J e ep C hero ke e
Fuses & Circuit Breakers
1984-88 AMC/Jeep
Jeep; Cherokee, Wagoneer
IDENTIFICATION
FUSES & CIRCUIT BREAKERS
Fuse panel is located at the lower left side of dash on most
models.
Fig. 1: Fuse Panel Identification
Courtesy of American Motors Corp.
FUSE & CIRCUIT BREAKER IDENTIFICATION

1 - 25 Amp
Rear Washer/Wiper.
2 - 15 Amp
Radio, Cigarette Lighter.
3 - 25 Amp
Blower Motor.
4 - 20 Amp
Turn Signal, Back-Up Lights, Rear Window Defogger Relay.
5 - 10 Amp
Dome Light, Courtesy Lights, Glove Box Light, Cargo Light,
Radio Memory, Power Mirrors, Teltak Connector.
6 - 15 Amp
Hazard Warning System, Stoplights.
7 - 10 Amp
Parking Lights, Headlight Warning Chime/Buzzer, Instrument
Panel Light Dimmer.
8 - 7.5 Amp
Gauges, Instrument Cluster, Seat Belt Warning, Headlight
Delay, Chime Module, Overhead Console.
9 - 5 Amp
Instrument Panel Illumination.
10 - 25 Amp
Rear Window Defogger.
11 - 30 Amp (Circuit Breaker)
Power Door Locks, Power Seats, Trailer Towing Wiring Harness.
12 - 10 Amp
ETR Radio, Power Antenna.
13 - Not Used (1984-87); 7.5 Amp (1988)
Transmission Control Unit.
14 - 25 Amp
Headlight Delay, Horns, Security Alarm.
15 - 5.5 Amp (Circuit Breaker)
Front Wiper.
16 - 30 Amp (Circuit Breaker)
Power Windows.
17 - 10 Amp
Clock, Security Alarm (Ign).
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

HEA TE R S YSTE M T R O UBLE S H O OTIN G

1988 J e ep C hero ke e
1989 HEATER SYSTEMS
Eagle Trouble Shooting
CONDITION & POSSIBLE CAUSE
Little or No Air From Heater Floor Outlets.
* Misadjusted heater air door cable.
* Obstructed heater housing or ducts.
* Clogged heater core fins.
* Leaking air duct seals.
Little or No Air From Defroster Outlets.
* Defroster duct misaligned.
* Defroster cable incorrectly adjusted
* Leaking air duct seals.
* Defroster duct damaged.
Heat Output When Controls Are Off.
* Outside air cable misadjusted
* Outside Air door binding in housing.
Not Enough Heat With Controls Fully On.
* Low coolant or plugged heater core.
* Incorrect thermostat.
* Incorrect adjustment of cables.
* Heater System Air Leaks.
* Blend air door not in proper position.
Blower Will Not Run.
* Blown fuse.
* Loose connections or poor ground.
* Faulty switch, motor or resistor.
Blower Runs But Does Not Circulate Air.
* Intake blocked..
* Fan not attached to motor shaft.

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.

whichever occurs first.
EMISSION DEFECT WARRANTY (EXCEPT CALIFORNIA)
It warrants that vehicle meets Federal emissions standards in
force at time of vehicle's manufacture. Warranty covers the cost of
repair or adjustment of any parts of vehicle's emission control
systems that are defective in material, workmanship or factory
preparation, but ONLY IF the defect causes the vehicle to fail to meet
Federal standards. Begins at warranty start date and lasts for 5 years
or 50,000 miles, whichever occurs first.
EMISSION PERFORMANCE WARRANTY (EXCEPT CALIFORNIA)
It begins at warranty start date and lasts for 5 years or 50,
000 miles, whichever comes first. This warranty applies only under the
following conditions:
* Vehicle failed a Federally-approved state or local emissions
test.
* Vehicle has been maintained and operated properly up until
the time of testing.
* Owner faces a penalty or other sanctions because of the
vehicle's failure to pass the local emissions test.
The following components and systems are covered: Carburetor
Feedback Control System, Electronic Fuel Injection System, Air Cleaner
Vapor Containment Door System, Electronic Spark Control, Electronic
Control Module, Vapor Storage Canister and Controls, Deceleration
Throttle Control, EGR Valve & Control System, Air Pump, Belt & Pulley,
Air Injection Controls, PCV Valve, Catalytic Converter, Vacuum Hoses,
Clamps, Fittings & Tubing used in these components and systems,
Vacuum, Temperature, Altitude, Speed and Time-Sensitive Valves and
Switches used in these components and systems.
EMISSION PERFORMANCE WARRANTY (CALIFORNIA)
If vehicle fails a Smog Check inspection, all necessary
repairs and adjustments will be made by manufacturer to ensure that
your vehicle passes the inspection. Warranty begins at warranty start
date and lasts for a period of 3 years or 50,000 miles, whichever
occurs first.
EMISSION DEFECTS WARRANTY (CALIFORNIA)
If any emission-related part on your vehicle is defective,
the part will be repaired or replaced by manufacturer for a period of
3 years or 50,000 miles, whichever occurs first. Warranty begins at
warranty start date and lasts for a period of 3 years or 50,000 miles,
whichever occurs first.
The following emission-related parts are warranted for 7
years or 70,000 miles, whichever occurs first, and will be repaired or
replaced by manufacturer if found to be defective in material or
workmanship: Catalytic Converter, Intake Manifold, Carburetor,
Throttle Body, Injectors, Fuel Tank, Exhaust Manifolds (4.0L).
FUSES & CIRCUIT BREAKERS
Fuse panel is located at the lower left side of dash on most
models.

Fig. 12: Fuse Panel Identification
Courtesy of American Motors Corp.
Fuse & Circuit Breaker Identification

meter long with force of one Newton applied). Some conversions are:
* A meter kilogram is about 7.2 foot pounds.
* A foot pound is about 1.4 Newton-meters.
* A centimeter kilogram (cmkg) is equal to .9 inch pounds.
PRESSURE
Pressure is another complicated measurement. Pressure is
described as a force or weight applied to a given area. Our common
unit is pounds per square inch. Metric units can be expressed in
several ways. One is the kilogram per square centimeter (kg/cm
).
Another unit of pressure is the Pascal (force of one Newton on an area
of one square meter), which equals about 4 ounces on a square yard.
Since this is a very small amount of pressure, we usually see the
kiloPascal, or kPa (1000 Pascals). Another common automotive term for
pressure is the bar (used by German manufacturers), which equals 10
Pascals. Thoroughly confused? Try the examples below:
* Atmospheric pressure at sea level is about 14.7 psi.
* Atmospheric pressure at sea level is about 1 bar.
* Atmospheric pressure at sea level is about 1 kg/cm
.
* One pound per square inch is about 7 kPa.
CONVERSION FACTORS
CONVERSION FACTORS
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LENGTH
  

Millimeters (mm) Inches  .03937 

Inches Millimeters  25.4 

Meters (M) Feet  3.28084 

Feet Meters  .3048 

Kilometers(Km) Miles  .62137 
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AREA
  

Square Centimeters (cm) Square Inches  .155 

Square Inches Square Centimeters  6.45159 
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VOLUME
  

Cubic Centimeters Cubic Inches  .06103 

Cubic Inches Cubic Centimeters  16.38703 

Liters Cubic Inches  61.025 

Cubic Inches Liters  .01639 

Liters Quarts  1.05672 

Quarts Liters  .94633 

Liters Pints  2.11344 

Pints Liters  .47317 

Liters Ounces  33.81497 

Ounces Liters  .02957 
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WEIGHT
  

Grams Ounces  .03527 

Ounces Grams  28.34953 

Kilograms Pounds  2.20462 

Pounds Kilograms  .45359 
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WORK
  

Centimeter Kilograms Inch Pounds  .8676 

Pounds/Sq. Inch Kilograms/Sq.Centimeter .07031 

Bar Pounds/Sq. Inch  14.504 

\003
MIR RO RS - P O W ER

1988 J e ep C hero ke e
1988 Power Mirrors
JEEP
DESCRIPTION
Outside power rear view mirrors consist of door-mounted
mirrors with internal motor drive and backing plate. The Ford
electronic day/night mirror will change from normal to non-glare
position when glare reaches mirror. The non-glare functions only at
night.
TESTING
Mirror Motors & Switches
1) Ensure fuse is okay by operating interior lights. If
neither mirror operates, check for battery voltage at power mirror
switch assembly. Connect a voltmeter between terminal "G" (Red with
White stripe) and ground. If battery voltage is present, connect
voltmeter between terminals "G" and "F" (Black). If battery voltage is\
not present, check circuit at Red with White stripe wire and Black
wire.
2) If one mirror does not operate, connect a voltmeter across
power mirror switch assembly terminals. See Fig. 1. Voltage will be
present when control switch and mirror select switch are operated for
that motor.
Fig. 1: Jeep Switch Assembly Check Chart
Courtesy of American Motors/Jeep Corp.
3) If voltage is present but mirror does not operate, check
motor and wiring. If voltage is not present when 2 switches are on,