2002 JEEP LIBERTY airbag wiring

BLOWER MOTOR
DESCRIPTION
The blower motor and blower wheel are located in
the passenger side end of the HVAC housing, below
the glove box. The blower motor controls the velocity
of air flowing through the HVAC housing by spinning
a squirrel cage-type blower wheel within the housing
at the selected speed. The blower motor and wheel
can be removed from the housing inside the vehicle
without removing the dash or HVAC housing assem-
bly.
OPERATION
The blower motor will only operate when the igni-
tion switch is in the On position, and the A/C Heater
mode control switch knob is in any position, except
Off. The blower motor receives a fused battery feed
through the blower motor relay whenever the igni-
tion switch is in the On position. The blower motor
battery feed circuit is protected by a fuse in the
Power Distribution Center (PDC). Blower motor
speed is controlled by regulating the ground path
through the A/C Heater control blower motor switch
and the blower motor resistor.
The blower motor and blower motor wheel cannot
be repaired and, if faulty or damaged, they must be
replaced. The blower motor and blower wheel are ser-
viced only as a unit.
DIAGNOSIS AND TESTING - BLOWER MOTOR
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN AN ACCIDENTAL
AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
For circuit descriptions and diagrams, (Refer to
Appropriate Wiring Information). Possible causes of
an inoperative blower motor include:²Faulty fuse
²Faulty blower motor circuit wiring or wire har-
ness connectors
²Faulty blower motor resistor
²Faulty blower motor relay
²Faulty blower motor switch
²Faulty A/C Heater mode control switch
²Faulty blower motor.
Possible causes of the blower motor not operating
in all speeds include:
²Faulty blower motor switch
²Faulty blower motor resistor
²Faulty blower motor circuit wiring or wire har-
ness connectors.
VIBRATION
Possible causes of blower motor vibration include:
²Improper blower motor mounting
²Improper blower wheel mounting
²Blower wheel out of balance or bent
²Blower motor faulty.
NOISE
To verify that the blower is the source of the noise,
unplug the blower motor wire harness connector and
operate the HVAC system. If the noise goes away,
possible causes include:
²Foreign material in the HVAC housing
²Improper blower motor mounting
²Improper blower wheel mounting
²Blower motor faulty.
REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN AN ACCIDENTAL
AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
24 - 30 DISTRIBUTIONKJ

evaporator outlet tube. Connect the accumulator inlet
tube refrigerant line coupler to the evaporator outlet
tube. (Refer to 24 - HEATING & AIR CONDITION-
ING/PLUMBING - STANDARD PROCEDURE - A/C
LINE COUPLERS)
(3) Tighten the accumulator retaining band screw
to 5 N´m (45 in. lbs.).
(4) Remove the tape or plugs from the refrigerant
line fittings on the suction line and the accumulator
outlet tube. Connect the suction line to the accumu-
lator outlet tube refrigerant line coupler. (Refer to 24
- HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - A/C LINE COUPLERS)
(5) Plug the wire harness connector into the low
pressure cycling clutch switch.
(6) Connect the battery negative cable.
(7) Evacuate the refrigerant system. (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-
TEM EVACUATE)
(8) Charge the refrigerant system. (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-
TEM CHARGE)NOTE: If the accumulator is replaced, add 120 mil-
liliters (4 fluid ounces) of refrigerant oil to the
refrigerant system. Use only refrigerant oil of the
type recommended for the compressor in the vehi-
cle. (Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING/REFRIGERANT OIL - DESCRIPTION)
HEATER CORE
DESCRIPTION
The heater core is located in the HVAC housing,
under the instrument panel. It is a heat exchanger
made of rows of tubes and fins and uses warm engine
coolant as its heat source.
OPERATION
Engine coolant is circulated through heater hoses
to the heater core at all times. As the coolant flows
through the heater core, heat removed from the
engine is transferred to the heater core fins and
tubes. Air directed through the heater core picks up
the heat from the heater core fins. The temperature
control door allows control of the heater output air
temperature by controlling how much of the air flow-
ing through the HVAC housing is directed through
the heater core. The blower motor speed controls the
volume of air flowing through the HVAC housing.
The heater core cannot be repaired and, if faulty or
damaged, it must be replaced. Refer to Cooling for
more information on the engine cooling system, the
engine coolant and the heater hoses.
REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN AN ACCIDENTAL
AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
Fig. 13 A/C LOW PRESSURE SWITCH
1 - WIRING HARNESS CONNECTOR
2 - A/C LOW PRESSURE SWITCH
3 - A/C LINE TO EVAPORATOR
4 - ACCUMULATOR MOUNTING BRACKET
5 - ACCUMULATOR
6 - A/C LOW PRESSURE LINE
24 - 52 PLUMBINGKJ
ACCUMULATOR (Continued)

COVER - REMOVAL, COWL TRIM.......23-157
COVER - REMOVAL, INSTRUMENT
PANEL TOP........................23-152
COVER - REMOVAL, STRUCTURAL........9-55
COVER(S) - DESCRIPTION, CYLINDER
HEAD...............................9-25
COVER(S) - INSTALLATION, CYLINDER
HEAD...........................9-26,9-34
COVER(S) - INSTALLATION, TIMING
BELT / CHAIN........................9-76
COVER(S) - REMOVAL, CYLINDER HEAD . . 9-25,
9-34
COVER(S) - REMOVAL, TIMING BELT /
CHAIN..............................9-74
COWL GRILLE - INSTALLATION........23-140
COWL GRILLE - REMOVAL............23-140
COWL TRIM COVER - INSTALLATION....23-157
COWL TRIM COVER - REMOVAL.......23-157
COWL WEATHERSTRIP - INSTALLATION . 23-185
COWL WEATHERSTRIP - REMOVAL.....23-185
COWL/PLENUM SEAL - INSTALLATION . . . 23-187
COWL/PLENUM SEAL - REMOVAL......23-187
COWL/PLENUM WINDOW BAFFLE SEAL -
INSTALLATION......................23-187
COWL/PLENUM WINDOW BAFFLE SEAL -
REMOVAL.........................23-187
CRADLE CROSSMEMBER -
INSTALLATION, ENGINE................13-6
CRADLE CROSSMEMBER - REMOVAL,
ENGINE.............................13-6
CRANKSHAFT - DESCRIPTION...........9-42
CRANKSHAFT - INSPECTION.............9-43
CRANKSHAFT - INSTALLATION...........9-43
CRANKSHAFT - REMOVAL..............9-43
CRANKSHAFT OIL SEAL - FRONT -
INSTALLATION........................9-47
CRANKSHAFT OIL SEAL - FRONT -
REMOVAL...........................9-46
CRANKSHAFT OIL SEAL - REAR -
INSTALLATION........................9-48
CRANKSHAFT OIL SEAL - REAR -
REMOVAL...........................9-48
CRANKSHAFT POSITION SENSOR -
DESCRIPTION.......................14-30
CRANKSHAFT POSITION SENSOR -
INSTALLATION.......................14-32
CRANKSHAFT POSITION SENSOR -
OPERATION.........................14-31
CRANKSHAFT POSITION SENSOR -
REMOVAL..........................14-31
CROSSMEMBER - INSTALLATION,
ENGINE CRADLE......................13-6
CROSSMEMBER - INSTALLATION,
RADIATOR.........................23-146
CROSSMEMBER - INSTALLATION, REAR . . . 13-7
CROSSMEMBER - REMOVAL, ENGINE
CRADLE.............................13-6
CROSSMEMBER - REMOVAL, RADIATOR . 23-146
CROSSMEMBER - REMOVAL, REAR.......13-7
CROSS-OVER PIPE - INSTALLATION.......11-3
CROSS-OVER PIPE - REMOVAL..........11-3
CRUISE INDICATOR - DESCRIPTION......8J-16
CRUISE INDICATOR - OPERATION.......8J-17
CURTAIN AIRBAG - DESCRIPTION, SIDE . . 8O-38
CURTAIN AIRBAG - INSTALLATION, SIDE . . 8O-41
CURTAIN AIRBAG - OPERATION, SIDE....8O-39
CURTAIN AIRBAG - REMOVAL, SIDE.....8O-40
CUSHION - FRONT - INSTALLATION,
SEAT .............................23-167
CUSHION - FRONT - INSTALLATION,
SEAT BACK........................23-167
CUSHION - FRONT - REMOVAL, SEAT . . . 23-167
CUSHION - FRONT - REMOVAL, SEAT
BACK.............................23-167
CUSHION - REAR - INSTALLATION, SEAT . 23-171
CUSHION - REAR - INSTALLATION, SEAT
BACK.............................23-170
CUSHION - REAR - REMOVAL, SEAT....23-171
CUSHION - REAR - REMOVAL, SEAT
BACK
.............................23-170
CUSHION COVER - FRONT -
INSTALLATION, SEAT
.................23-167
CUSHION COVER - FRONT - REMOVAL,
SEAT
.............................23-167
CUSHION SIDE SHIELDS -
INSTALLATION, SEAT
.................23-167
CUSHION SIDE SHIELDS - REMOVAL,
SEAT
.............................23-167CUSTOMER PREFERENCES - STANDARD
PROCEDURE, RKE TRANSMITTER........8N-8
CV JOINT/BOOT-INNER - INSTALLATION . . . 3-17
CV JOINT/BOOT-INNER - REMOVAL.......3-15
CV JOINT/BOOT-OUTER - INSTALLATION . . . 3-13
CV JOINT/BOOT-OUTER - REMOVAL.......3-12
CYLINDER - DESCRIPTION, MASTER......5-24
CYLINDER - INSPECTION, MASTER........6-9
CYLINDER - INSTALLATION, FLIP-UP
GLASS SUPPORT...................23-139
CYLINDER - INSTALLATION, LOCK......23-125,
23-138
CYLINDER - INSTALLATION, LOCK.......19-11
CYLINDER - INSTALLATION, MASTER.....5-25
CYLINDER - INSTALLATION, SUPPORT . . . 23-120
CYLINDER - OPERATION, MASTER........5-24
CYLINDER - REMOVAL, FLIP-UP GLASS
SUPPORT.........................23-139
CYLINDER - REMOVAL, LOCK....23-125,23-137
CYLINDER - REMOVAL, LOCK...........19-10
CYLINDER - REMOVAL, MASTER.........5-25
CYLINDER - REMOVAL, SUPPORT......23-120
CYLINDER BLEEDING - STANDARD
PROCEDURE, MASTER.................5-24
CYLINDER BORE HONING - STANDARD
PROCEDURE.........................9-39
CYLINDER COMBUSTION PRESSURE
LEAKAGE - DIAGNOSIS AND TESTING......9-8
CYLINDER COMPRESSION PRESSURE -
DIAGNOSIS AND TESTING...............9-8
CYLINDER FLUID LEVEL - STANDARD
PROCEDURES, MASTER................5-26
CYLINDER HEAD - DESCRIPTION.........9-30
CYLINDER HEAD COVER(S) -
DESCRIPTION........................9-25
CYLINDER HEAD COVER(S) -
INSTALLATION....................9-26,9-34
CYLINDER HEAD COVER(S) - REMOVAL . . . 9-25,
9-34
CYLINDER HEAD GASKET - DIAGNOSIS
AND TESTING....................9-19,9-30
CYLINDER LOCK SWITCH -
DESCRIPTION, DOOR..................8Q-9
CYLINDER LOCK SWITCH -
DESCRIPTION, TAILGATE...............8N-9
CYLINDER LOCK SWITCH - DIAGNOSIS
AND TESTING, DOOR.................8Q-10
CYLINDER LOCK SWITCH - DIAGNOSIS
AND TESTING, TAILGATE...............8N-9
CYLINDER LOCK SWITCH -
INSTALLATION, DOOR.................8Q-10
CYLINDER LOCK SWITCH -
INSTALLATION, TAILGATE..............8N-10
CYLINDER LOCK SWITCH - OPERATION,
DOOR.............................8Q-10
CYLINDER LOCK SWITCH - OPERATION,
TAILGATE...........................8N-9
CYLINDER LOCK SWITCH - REMOVAL,
DOOR.............................8Q-10
CYLINDER LOCK SWITCH - REMOVAL,
TAILGATE..........................8N-10
CYLINDER/POWER BOOSTER -
DIAGNOSIS AND TESTING, MASTER . . 5-21,5-24
CYLINDERS - ASSEMBLY, WHEEL.........5-29
CYLINDERS - CLEANING, WHEEL.........5-28
CYLINDERS - DISASSEMBLY, WHEEL......5-28
CYLINDERS - INSPECTION, WHEEL.......5-29
CYLINDERS - INSTALLATION, WHEEL
.....5-29
CYLINDERS - REMOVAL, WHEEL
.........5-28
DAMAGED OR WORN THREADS -
STANDARD PROCEDURE, REPAIR
.........9-9
DAMPER - INSTALLATION, VIBRATION
.....9-55
DAMPER - REMOVAL, VIBRATION
........9-54
DATA LINK CONNECTOR - DESCRIPTION
. . 8E-10
DATA LINK CONNECTOR - OPERATION
....8E-10
DAYTIME RUNNING LAMP RELAY -
DESCRIPTION
.......................8L-20
DAYTIME RUNNING LAMP RELAY -
INSTALLATION
.......................8L-21
DAYTIME RUNNING LAMP RELAY -
OPERATION
.........................8L-20
DAYTIME RUNNING LAMP RELAY -
REMOVAL
..........................8L-21
DECOUPLER - DIAGNOSIS AND
TESTING, GENERATOR
................8F-27
DECOUPLER PULLEY - DESCRIPTION,
GENERATOR
........................8F-26DECOUPLER PULLEY - INSTALLATION,
GENERATOR........................8F-30
DECOUPLER PULLEY - OPERATION,
GENERATOR........................8F-27
DECOUPLER PULLEY - REMOVAL,
GENERATOR........................8F-27
DEFINITION - DESCRIPTION, TRIP.......25-19
DEFLECTOR - INSTALLATION, WIND.....23-180
DEFLECTOR - REMOVAL, WIND........23-180
DEFOGGER - DESCRIPTION, REAR
WINDOW............................8G-3
DEFOGGER - OPERATION, REAR
WINDOW............................8G-3
DEFOGGER FUNCTION - DIAGNOSIS AND
TESTING, REAR HVAC CONTROL
ASSEMBLY WINDOW..................8G-9
DEFOGGER GRID - DESCRIPTION, REAR
WINDOW............................8G-5
DEFOGGER GRID - DIAGNOSIS AND
TESTING, REAR WINDOW..............8G-5
DEFOGGER GRID - OPERATION, REAR
WINDOW............................8G-5
DEFOGGER RELAY - DESCRIPTION,
REAR WINDOW.......................8G-6
DEFOGGER RELAY - DIAGNOSIS AND
TESTING, REAR WINDOW..............8G-6
DEFOGGER RELAY - INSTALLATION,
REAR WINDOW.......................8G-7
DEFOGGER RELAY - OPERATION, REAR
WINDOW............................8G-6
DEFOGGER RELAY - REMOVAL, REAR
WINDOW............................8G-7
DEFOGGER SWITCH - DESCRIPTION,
REAR WINDOW.......................8G-8
DEFOGGER SWITCH - DIAGNOSIS AND
TESTING, REAR WINDOW..............8G-8
DEFOGGER SWITCH - OPERATION, REAR
WINDOW............................8G-8
DEFOGGER SYSTEM - DIAGNOSIS AND
TESTING, REAR WINDOW..............8G-4
DEFROST DOO - INSTALLATION, FLOOR . . 24-37
DEFROST DOOR - REMOVAL...........24-35
DEFROST DOOR - REMOVAL, FLOOR.....24-36
DEFROST DOOR ACTUATOR -
INSTALLATION, FLOOR................24-25
DEFROST DOOR ACTUATOR - REMOVAL,
FLOOR.............................24-24
DEFROST DUCT/DEMISTER ADAPTOR -
REMOVAL..........................24-32
DEFROST/DEMISTER DUCT -
INSTALLATION.......................24-32
DELIVERY - DESCRIPTION, FUEL.........14-2
DELIVERY - OPERATION, FUEL...........14-3
DEMAGNETIZING - STANDARD
PROCEDURE, COMPASS...............8M-2
DEMISTER OUTLETS - DESCRIPTION.....24-29
DEPLOYMENT - STANDARD
PROCEDURE, SERVICE AFTER A
SUPPLEMENTAL RESTRAINT............8O-6
DETECTION PUMP - DESCRIPTION, LEAK . 25-27
DETECTION PUMP - INSTALLATION,
LEAK..............................25-28
DETECTION PUMP - OPERATION, LEAK . . . 25-28
DETECTION PUMP - REMOVAL, LEAK....25-28
DEVICES - STANDARD PROCEDURE,
ELECTROSTATIC DISCHARGE (ESD)
SENSITIVE........................8W-01-8
DIAGNOSIS CHART - DIAGNOSIS AND
TESTING, COOLING SYSTEM.............7-6
DIAGNOSIS, DIAGNOSIS AND TESTING -
WATER DRAINAGE AND WIND NOISE . . . 23-176
DIAGNOSTIC PROCEDURES, DIAGNOSIS
AND TESTING......................23-176
DIAGNOSTIC TROUBLE CODES -
DESCRIPTION........................25-2
DIAGNOSTICS (OBD) - DIAGNOSIS AND
TESTING, ON-BOARD...................7-3
DIAGRAMS - DESCRIPTION, HOW TO
USE WIRING......................8W-01-1
DIAGRAMS - HYDRAULIC SCHEMATICS,
SCHEMATICS.......................21-100
DIESEL - TORQUE, EXCEPT.............8F-23
DIFFERENTIAL - ASSEMBLY
........3-105,3-41
DIFFERENTIAL - DISASSEMBLY
.....3-105,3-41
DIFFERENTIAL - INSTALLATION
. 3-105,3-42,3-73
DIFFERENTIAL - REMOVAL
.....3-104,3-40,3-71
DIFFERENTIAL - TRAC-LOK - ASSEMBLY
. . 3-109,
3-77
KJINDEX 7
Description Group-Page Description Group-Page Description Group-Page