1988 JEEP CHEROKEE sensor
[x] Cancel search: sensorPage 506 of 1378
speedometer cable.
Throttle Position Sensor
(TPS) (Graphic 1) On throttle body.
Throttle Position Sensor
(TPS) (Graphic 2) On throttle body.
Page 516 of 1378
\003* E LE C TR IC AL S YSTE M U NIF O RM IN SPEC TIO N G UID ELIN ES *
1 988 J e ep C hero ke e
GENERAL INFORMATION
Electrical System Motorist Assurance Program
Standards For Automotive Repair
All Makes and Models
INTRODUCTION TO MOTORIST ASSURANCE PROGRAM (MAP)
CONTENTS
OVERVIEW OF MOTORIST ASSURANCE PROGRAM
OVERVIEW OF SERVICE REQUIREMENTS & SUGGESTIONS
ACTUATOR MOTORS (SOLENOIDS) (ELECTRIC)
ACTUATOR MOTORS (VACUUM)
AIR BAGS
ALTERNATORS AND GENERATORS
AMPLIFIERS
ANTENNAS
BATTERIES
BATTERY CABLES
BATTERY CABLES
BATTERY HOLD DOWN HARDWARE
BATTERY TRAYS AND HOLD DOWN HARDWARE
BATTERY WIRES
BELTS
BULB SOCKETS
BULBS, SEALED BEAMS AND LEDS
CD PLAYERS
CIGARETTE LIGHTER ASSEMBLIES
CIRCUIT BREAKERS
CLUTCH SWITCHES
CONNECTORS
CONTROL MODULES
CRUISE CONTROL BRAKE SWITCHES
CRUISE CONTROL CABLES
CRUISE CONTROL CLUTCH SWITCHES
CRUISE CONTROL LINKAGES AND CABLES
CRUISE CONTROL RESERVOIRS
CRUISE CONTROL TUBES
CRUISE CONTROL VACUUM DUMP RELEASE VALVES
CRUISE CONTROL VACUUM HOSES, TUBES AND RESERVOIRS
CRUISE CONTROL VEHICLE SPEED SENSORS
DEFOGGERS
DEFROSTERS
DELAYS
DIMMERS
ELECTRIC HEATERS
EQUALIZERS
FUSE BLOCKS
FUSE BOXES AND BLOCKS
FUSES, FUSIBLE LINKS AND CIRCUIT BREAKERS
FUSIBLE LINKS
GAUGES
GENERATORS
GROUND CABLES AND STRAPS
GROUND STRAPS
HEADLIGHT ADJUSTERS
HEATING ELEMENTS (DEFROSTERS, DEFOGGERS, ELECTRIC HEATERS AND SEATS)
HORNS AND SIRENS
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IGNITION SWITCHES
INDICATOR LIGHTS
KEYLESS ENTRY KEYPADS AND TRANSMITTERS
KEYLESS ENTRY TRANSMITTERS
LEDS
LENSES
MICROPHONES
MIRRORS (ELECTROCHROMATIC AND HEATED)
MOTORS
NEUTRAL SAFETY SWITCHES
ODOMETERS
ODOMETERS, SPEEDOMETERS AND TACHOMETERS (CABLE-DRIVEN)
PULLEYS
RECEIVERS, AMPLIFIERS, EQUALIZERS AND SUB-WOOFER VOLUME CONTROLS
RELAY BOXES
RELAYS
SEALED BEAMS
SEAT HEATERS
SECURITY ALARM SENSORS
SIRENS
SOLENOIDS
SPEAKERS AND MICROPHONES
SPEEDOMETER AND TACHOMETER LINKAGES AND CABLES
SPEEDOMETER CABLES
SPEEDOMETERS
STARTERS
SUB-WOOFER VOLUME CONTROLS
SWITCHES
TACHOMETER CABLES
TACHOMETERS
TAPE PLAYERS AND CD PLAYERS
TENSIONERS
TIMERS
TIRE PRESSURE SENSORS
TRANSCEIVERS
TRANSDUCERS
VACUUM ACCUMULATORS (RESERVOIRS)
VACUUM RESERVOIRS
VOLTAGE REGULATORS
WASHER FLUID LEVEL SENDERS
WASHER PUMPS
WIPER ARMS AND BLADES
WIPER BLADES
WIPER HOSES AND NOZZLES
WIPER LINKAGES
WIPER NOZZLES
WIPER PUMP RESERVOIRS
WIRING HARNESSES AND CONNECTORS
INTRODUCTION TO MOTORIST ASSURANCE PROGRAM (MAP)
OVERVIEW OF MOTORIST ASSURANCE PROGRAM
The Motorist Assurance Program is the consumer outreach
effort of the Automotive Maintenance and Repair Association, Inc.
(AMRA). Participation in the Motorist Assurance Program is drawn from
retailers, suppliers, independent repair facilities, vehicle
manufacturers and industry associations.
Our organization's mission is to strengthen the relationship
between the consumer and the auto repair industry. We produce
materials that give motorists the information and encouragement to
take greater responsibility for their vehicles-through proper,
Page 535 of 1378
![JEEP CHEROKEE 1988 Service Repair Manual CRUISE CONTROL VACUUM HOSES, TUBES AND RESERVOIRS
CRUISE CONTROL VACUUM HOSE, TUBE AND RESERVOIR INSPECTION \
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CRUISE CONTROL VACUUM HOSE, TUBE AND RESERVOIR INSPECTION \
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CRUISE CONTROL VACUUM HOSES, TUBES AND RESERVOIRS
CRUISE CONTROL VACUUM HOSE, TUBE AND RESERVOIR INSPECTION \
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Condition Code Procedure
Leaking ................. A .. Require repair or replacement.
Melted .................. A ............ Require replacement.
Missing ................. C ............ Require replacement.
Oil-soaked (spongy) ..... 1 ............ Suggest replacement.
Restricted .............. A .. Require repair or replacement.
Surface cracks (dry-
rotted) ................ 1 ............ Suggest replacement.
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CRUISE CONTROL VEHICLE SPEED SENSORS
CRUISE CONTROL VEHICLE SPEED SENSOR INSPECTION \
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Condition Code Procedure
Air gap incorrect ....... B ....... ( 1) Require adjustment to
vehicle manufacturer's
specifications.
Attaching hardware
broken ................. A ... Require repair or replacement
of hardware.
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware not
functioning ............ A ... Require repair or replacement
of hardware.
Broken .................. A ............ Require replacement.
Housing cracked ......... A ............ Require replacement.
Internal resistance
does not meet
specifications ......... B ........ ( 2) Require replacement.
Lead routing incorrect .. B .. Require rerouting according to
vehicle manufacturer's
specifications.
Loose ................... B ....... ( 3) Require adjustment to
vehicle manufacturer's
specifications.
Missing ................. C ............ Require replacement.
Output signal incorrect . B ........... ( 2) Require repair or
replacement.
Surface contaminated .... 2 .. Suggest cleaning; identify and
correct source.
Tip bent ................ B ............ Require replacement.
Tip broken .............. B ............ Require replacement.
Tip missing ............. B ............ Require replacement.
Wire lead burned ........ A ............ Require replacement.
Wire lead conductors
exposed ................ B ............ Require replacement.
Wire lead corroded ...... A ............ Require replacement.
Wire lead open .......... A ............ Require replacement.
Wire lead shorted ....... A ............ Require replacement.
( 1) - If a sensor is not adjustable, further inspection is
required to identify and correct cause.
( 2) - Component failure may be caused by water intrusion into
the wiring harness. Always check insulation for damage
Page 536 of 1378
![JEEP CHEROKEE 1988 Service Repair Manual and wiring for excessive resistance.
(3) - Some integral bearing assemblies with sensors may require
replacement.
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(3) - Some integral bearing assemblies with sensors may require
replacement.
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and wiring for excessive resistance.
(3) - Some integral bearing assemblies with sensors may require
replacement.
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DEFOGGERS
See
HEATING ELEMENTS (DEFROSTERS, DEFOGGERS, ELECTRIC HEATERS AND SEATS) .
DEFROSTERS
See
HEATING ELEMENTS (DEFROSTERS, DEFOGGERS, ELECTRIC HEATERS AND SEATS) .
DELAYS
DELAY INSPECTION \
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Condition Code Procedure
Attaching hardware
broken ................. A ... Require repair or replacement
of hardware.
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware not
functioning ............ A ... Require repair or replacement
of hardware.
Binding, affecting
performance ............ A .. Require repair or replacement.
Binding, not affecting
performance ............ 2 .. Suggest repair or replacement.
Broken .................. A .. Require repair or replacement.
Burned, affecting
performance ............ A ........... ( 1) Require repair or
replacement.
Burned, not affecting
performance ............ 2 ........... ( 1) Suggest repair or
replacement.
Cracked, affecting
performance ............ A .. Require repair or replacement.
Cracked, not affecting
performance ............ 1 .. Suggest repair or replacement.
Inoperative ............. A ........... ( 2) Require repair or
replacement.
Melted, affecting
performance ............ A ........... ( 1) Require repair or
replacement.
Melted, not affecting
performance ............ 2 ........... ( 1) Suggest repair or
replacement.
Missing ................. C ............ Require replacement.
Terminal broken ......... A .. Require repair or replacement.
Terminal burned, affecting
performance ............ A ........... ( 1) Require repair or
replacement.
Terminal burned, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal corroded,
affecting performance .. A .. Require repair or replacement.
Terminal corroded, not
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![JEEP CHEROKEE 1988 Service Repair Manual SEAT HEATERS
See
HEATING ELEMENTS (DEFROSTERS, DEFOGGERS, ELECTRIC HEATERS AND SEATS) .
SECURITY ALARM SENSORS
SECURITY ALARM SENSOR INSPECTION \](/manual-img/16/57037/w960_57037-551.png "JEEP CHEROKEE 1988 Service Repair Manual SEAT HEATERS
See
HEATING ELEMENTS (DEFROSTERS, DEFOGGERS, ELECTRIC HEATERS AND SEATS) .
SECURITY ALARM SENSORS
SECURITY ALARM SENSOR INSPECTION \")
SEAT HEATERS
See
HEATING ELEMENTS (DEFROSTERS, DEFOGGERS, ELECTRIC HEATERS AND SEATS) .
SECURITY ALARM SENSORS
SECURITY ALARM SENSOR INSPECTION \
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Condition Code Procedure
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware threads
damaged ................ A ... Require repair or replacement
of hardware.
Attaching hardware threads
stripped (threads
missing) ............... A ... Require repair or replacement
of hardware.
Connector broken ........ A .. Require repair or replacement.
Connector melted ........ A ........... ( 1) Require repair or
replacement.
Connector missing ....... C ............ Require replacement.
Inoperative ............. B ........... ( 2) Require repair or
replacement. Further
inspection required.
Missing ................. C ............ Require replacement.
Resistance out of
specification .......... B .. Require repair or replacement.
Terminal broken ......... A .. Require repair or replacement.
Terminal burned, affecting
performance ............ A ........... ( 1) Require repair or
replacement.
Terminal burned, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal corroded,
affecting performance .. A .. Require repair or replacement.
Terminal corroded, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal loose, affecting
performance ............ B .. Require repair or replacement.
Terminal loose, not
affecting performance .. 1 .. Suggest repair or replacement.
Threads damaged ......... A .. Require repair or replacement.
Threads stripped (threads
missing) ............... A ............ Require replacement.
Wire lead conductors
exposed ................ B .. Require repair or replacement.
Wire lead corroded ...... A .. Require repair or replacement.
Wire lead open .......... A .. Require repair or replacement.
Wire lead shorted ....... A .. Require repair or replacement.
( 1) - Determine cause and correct prior to repair or
replacement of part.
( 2) - Inoperative includes intermittent operation or out of OEM
specification.
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SIRENS
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![JEEP CHEROKEE 1988 Service Repair Manual (2) - Inoperative includes intermittent operation or out of OEM
specification.
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specification.
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(2) - Inoperative includes intermittent operation or out of OEM
specification.
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TIRE PRESSURE SENSORS
TIRE PRESSURE SENSOR INSPECTION \
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Condition Code Procedure
Attaching hardware
broken ................. A ... Require repair or replacement
of hardware.
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware not
functioning ............ A ... Require repair or replacement
of hardware.
Inoperative ............. A ........... ( 1) Require repair or
replacement.
Loose ................... A .. Require repair or replacement.
Missing ................. C ............ Require replacement.
( 1) - Inoperative includes intermittent operation or out of OEM
specification.
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TRANSCEIVERS
TRANSCEIVER INSPECTION \
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Condition Code Procedure
Attaching hardware
broken ................. A ... Require repair or replacement
of hardware.
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware not
functioning ............ A ... Require repair or replacement
of hardware.
Connector broken ........ A .. Require repair or replacement.
Connector melted ........ A ........... ( 1) Require repair or
replacement.
Connector missing ....... C ............ Require replacement.
Malfunctioning .......... A ........... ( 2) Require repair or
replacement.
Missing ................. C ............ Require replacement.
Sound quality poor ...... A ........... ( 3) Require repair or
replacement.
Terminal broken ......... A .. Require repair or replacement.
Terminal burned, affecting
performance ............ A ........... ( 1) Require repair or
replacement.
Terminal burned, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal corroded,
affecting performance .. A .. Require repair or replacement.
Terminal corroded, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal loose, affecting
Page 570 of 1378
EM IS SIO N A PPLIC ATIO N
1988 J e ep C hero ke e
1988 ENGINE EMISSIONS
Jeep Emission Control Applications
Cherokee, Comanche, Grand Wagoneer, Pickup,
Wagoneer, Wrangler
EMISSION CONTROL DEVICE APPLICATIONS
EMISSION CONTROL DEVICE APPLICATIONS TABLE \
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2.5L (150") 4-Cyl. TBI
PCV, EVAP, OC (3), EGR, SPK, CEC, O2
4.0L (242") 6-Cyl. MPFI
PCV, EVAP, AIS (2), DBC, EGR, SPK, CEC, O2, ACV, ASV
4.2L (258") 6-Cyl. 2-Bbl.
PCV, TAC, AIS, EVAP, DBC, EGR, SPK, CEC, O2, ACV, ASV,
EFE, EGR-CTO, EGR-TVS, MCU, SLV, VSA (1)
5.9L (360") V8 2-Bbl.
PCV, TAC, AIS, EVAP, DBC, EGR, SPK, ACV, DLV, EGR-CTO,
EGR-TVS, MCU (2), NLV, RDV, VA-CTO (2) (3), VSA (2)
(1) - Some Fed., all Calif.
(2) - Calif. only.
(3) - TWC on Calif.
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ABBREVIATION DEFINITIONS
ABBREVIATIONS DEFINITIONS TABLE \
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Abbreviation Description
ACV ......................................... Air Control Valve
AIS ...................................... Air Injection System
ASV ....................................... Air Switching Valve
CEC ............................... Computerized Engine Control
DC-VLV ..................................... Deceleration Valve
DLV ............................................... Delay Valve
DVTRV .......................................... Diverter Valve
EGR ................................. Exhaust Gas Recirculation
EGR-CTO ...................... EGR Coolant Temperature Override
EGR-FDLV ............................... EGR Foward Delay Valve
EGR-TVS ............................. EGR Thermal Vacuum Switch
EST .................................. Electronic Spark Control
EVAP ................................... Evap. Emission Control
HDSP-CT ............... Heavy Duty Spark Coolant Temp. Override
HDVA-CTO ....... Heavy Duty Vac. Advance Coolant Temp. Override
MCU ....................................... Micro Computer Unit
MPS .................................. Manifold Pressure Sensor
NLRV .............................. Non-Linear Vacuum Regulator
OC ......................................... Oxidation Catalyst
O2 .............................................. Oxygen Sensor
PCV ............................ Positive Crankcase Ventilation
RDV ....................................... Reverse Delay Valve
S-CTO ............................ Spark Coolant Temp. Override
SLV ................................................... Solevac