2003 JEEP Liberty

Jeep Liberty Limited 2003 - BUZZERS, RELAYS & TIMERS

Jeep Liberty Limited 2003 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
A/C Compressor Clutch Relay	In power distribution center.
Auto Shut Down Relay	In power distribution center.
Blower Motor Relay	In power distribution center.
Clutch Switch Override Relay (M/T)	In power distribution center.
Combination Flasher	Under left side of dash.
Daytime Running Lamp Relay	On junction block.
Defogger Relay	On junction block.
Door Lock Relay	On junction block.
Driver Door Unlock Relay	On junction block.
Front Foglamp Relay	On junction block.
Fuel Pump Relay	In power distribution center.
High Beam Relay	On junction block.
Horn Relay	On junction block.
Low Beam Relay	On junction block.
Oxygen Sensor Downstream Relay	In power distribution center.
Park Lamp Relay	On junction block.
Passenger Door Unlock Relay	On junction block.
Radiator Fan Relay	Behind left headlight, in engine compartment. See Fig. 8 .
Rear Foglamp Relay	On junction block.
Trailer Tow Brake Lamp Relay	Behind right rear quarterpanel.
Trailer Tow Left Turn Relay	Behind right rear quarterpanel.
Trailer Tow Relay	Behind right rear quarterpanel.
Trailer Tow Right Turn Relay	Behind right rear quarterpanel.
Transmission Control Relay (A/T)	In power distribution center.
Wiper High/Low Relay	In power distribution center.
Wiper On/Off Relay	In power distribution center.

Jeep Liberty Limited 2003 - CIRCUIT PROTECTION DEVICES

Jeep Liberty Limited 2003 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Circuit Breaker No. 1	On junction block.
Circuit Breaker No. 3	On junction block.
Junction Block	Below left end of dash.
Power Distribution Center	On left side of engine compartment.
Trailer Tow Circuit Breaker	Behind right rear quarterpanel.

Jeep Liberty Limited 2003 - CONTROL UNITS

Jeep Liberty Limited 2003 CONTROL UNITS LOCATION

Component	Location
Air Bag Control Module	Beneath center of dash, on transmission tunnel.
Body Control Module	Integral with junction block.
Controller Anti-Lock Brake	On left rear of engine compartment. See Fig. 5 .
Engine Control Module	At left rear side of engine compartment.
Fuel Pump Module	In fuel tank.
Heated Seat Module (Highline)	Beneath left front seat.
Powertrain Control Module	On left side of engine compartment, above fenderwell. See Fig. 5 .
Sentry Key Immobilizer Module	On right side of steering column.
Side Impact Air Bag Control Module (Left)	At base of left "B" pillar, behind trim. See Fig. 6 .
Side Impact Air Bag Control Module (Right)	At base of right "B" pillar, behind trim.
Transmission Control Module (3.7L)	On right side of engine compartment, above fenderwell.

Jeep Liberty Limited 2003 - MOTORS

Jeep Liberty Limited 2003 MOTORS LOCATION

Component	Location
Blend Door Actuator	Behind right side of dash, on HVAC assembly.
Blower Motor	Behind right side of dash, on HVAC assembly.
Flip-Up Glass Release Motor	Inside upper center of tailgate.
Front Washer Pump	On washer fluid reservoir.
Front Wiper Motor	On left rear of engine compartment.
Idle Air Control Motor (3.7L)	On left side of throttle body. See Fig. 3 .
Leak Detection Pump	Beneath vehicle, near front of fuel tank.
Rear Wiper Motor	Inside upper center of tailgate.
Speed Control Servo	On right side of engine compartment.
Sun Roof Motor	In overhead console.

Jeep Liberty Limited 2003 - SENDING UNITS & SENSORS

Jeep Liberty Limited 2003 SENDING UNITS & SENSORS LOCATION

Component	Location
Ambient Temperature Sensor	In front of radiator, behind center of grille.
Battery Temperature Sensor	Beneath battery tray, on left side of engine compartment.
Camshaft Position Sensor (2.4L)	At top of engine.
Camshaft Position Sensor (3.7L)	On front of right cylinder head. See Fig. 2 .
Crankshaft Position Sensor (2.4L)	At top of engine.
Crankshaft Position Sensor (3.7L)	On lower right rear of engine block. See Fig. 2 .
Engine Coolant Temperature Sensor	On front of engine.
Engine Oil Pressure Sensor (2.4L)	On top of engine.
Engine Oil Pressure Sensor (3.7L)	On lower left front of engine, above oil filter.
Input Speed Sensor (3.7L)	On left front of transmission. See Fig. 4 .
Intake Air Temperature Sensor (3.7L)	On left front of intake manifold. See Fig. 3 .
Knock Sensor (3.7L)	Near fuel injector No. 5.
Left Front Impact Sensor	At left front side of engine compartment.
Left Front Wheel Speed Sensor	At left side of engine compartment.
Line Pressure Sensor (3.7L)	On right rear of transmission.
Manifold Absolute Pressure Sensor (3.7L)	On front of intake manifold.
Output Speed Sensor (3.7L)	On left rear of transmission. See Fig. 4 .
Oxygen Sensor 1/1 Upstream (2.4L)	On exhaust manifold.
Oxygen Sensor 1/1 Upstream (3.7L)	On left exhaust downpipe, upstream of catalytic converter.
Oxygen Sensor 1/2 Downstream (2.4L)	On exhaust pipe, downstream of catalytic converter.
Oxygen Sensor 1/2 Downstream (3.7L)	On left exhaust pipe, downstream of catalytic converter. See Fig. 4 .
Oxygen Sensor 2/1 Upstream (3.7L)	On right exhaust downpipe, upstream of catalytic converter. See Fig. 2 .
Oxygen Sensor 2/2 Downstream (3.7L)	On right exhaust pipe, downstream of catalytic converter.
Rear Wheel Speed sensor	On rear axle.
Right Front Impact Sensor	At right front side of engine compartment.
Right Front Wheel Speed Sensor	At right side of engine compartment.
Throttle Position Sensor (3.7L)	On left side of throttle body. See Fig. 3 .
Transfer Case Position Sensor (2.4L)	On left side of transfer case. See Fig. 1 .
Transfer Case Position Sensor (3.7L)	On left side of transfer case. See Fig. 4 .

Jeep Liberty Limited 2003 - SOLENOIDS & SOLENOID VALVES

Jeep Liberty Limited 2003 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
EGR Solenoid	On right rear of engine compartment. See Fig. 7 .
Evap/Purge Solenoid	At solenoid.
Transmission Solenoid/TRS Assembly (3.7L)	At left side of transmission. See Fig. 4 .

Jeep Liberty Limited 2003 - SWITCHES

Jeep Liberty Limited 2003 SWITCHES LOCATION

Component	Location
A/C Low Pressure Switch	Left rear of engine compartment.
A/C Pressure Transducer (2.4L)	On right front of engine, on A/C line.
A/C Pressure Transducer (3.7L)	On front of engine, on A/C line.
Back-Up Lamp Switch (2.4L)	On right side of transmission.
Back-Up Lamp Switch (3.7L)	On left side of transmission.
Brake Lamp Switch	Above brake pedal, on bracket.
Brake Pressure Switch (ABS)	On master cylinder.
Clutch Interlock Switch	At left rear side of engine compartment.
Driver Seat Belt Switch	Integral with driver's seat belt buckle.
Flip-Up Glass Release Switch	Inside upper center of tailgate.
Hood Ajar Switch	On right side of engine compartment. See Fig. 7 .
Park Brake Switch	At base of parking brake lever.
Passenger Seat Belt Switch	Integral with passenger's seat belt buckle.
Power Steering Pressure Switch (2.4L)	On lower left front of engine.
Power Steering Pressure Switch (3.7L)	On lower left front of engine, below power steering pump.
Red Warning Brake Indicator Switch	At left rear side of engine compartment.
Tailgate Cylinder Lock Switch	Inside lower center of tailgate.
Tailgate Flip-Up Ajar Switch	Inside upper center of tailgate.
Tailgate Lock Motor/Ajar Switch	Inside right side of tailgate.
Washer Fluid Level Switch	On washer fluid reservoir.

Jeep Liberty Limited 2003 - MISCELLANEOUS

Jeep Liberty Limited 2003 MISCELLANEOUS LOCATION

Component	Location
Blower Motor Resistor Block	Behind lower right side of dash, on HVAC assembly.
Capacitor (2.4L)	On rear of cylinder head. See Fig. 1 .
Capacitor (3.7L)	On left rear of engine compartment, on firewall.
Data Link Connector	Behind left center of dash.
Driver Seat Belt Tensioner	At base of left "B" pillar, behind trim.
Horn (High Note)	Behind left headlight, in engine compartment. See Fig. 8 .
Horn (Low Note)	Behind left headlight, in engine compartment. See Fig. 8 .
Passenger Seat Belt Tensioner	At base of right "B" pillar, behind trim.
Radio Choke	Behind lower left center of dash.
Trailer Tow Connector	Below center of rear bumper.

Jeep Liberty Limited 2003 - CONNECTORS

Jeep Liberty Limited 2003 CONNECTORS LOCATION

Component	Location
C100 (Gray, 72 Pin)	At left kick panel.
C101 (2.4L) (Black, 14 Pin)	At left side of engine. See Fig. 1 .
C103 (Black, 10 Pin)	At right rear of engine compartment.
C104 (Black, 14 Pin)	At right rear of engine compartment.
C105 (Gray, 14 Pin)	At right rear of engine compartment.
C106 (Black, 14 Pin)	At left front of engine compartment. See Fig. 8 .
C107 (Black, 10 Pin)	At left front side of engine compartment.
C108 (Gray, 6 Pin)	On left front of engine.
C110 (2.4L) (Black, 10 Pin)	On left side of engine. See Fig. 1 .
C112 (Black, 10 Pin)	At right side of engine compartment.
C201 (Black, 40 Pin)	Behind center of dash.
C202 (Yellow, 4 Pin)	Behind center of dash.
C300 (Orange, 14 Pin)	At left "A" pillar.
C301 (Orange, 20 Pin)	At left "A" pillar.
C302 (Orange, 14 Pin)	At right "A" pillar.
C303 (Orange, 20 Pin)	At right "A" pillar.
C304 (Dark Blue, 14 Pin)	At middle of right "B" pillar.
C305 (Dark Blue, 14 Pin)	At middle of left "B" pillar.
C306 (White, 43 Pin)	At base of left "B" pillar.
C307 (Light Gray, 10 Pin)	At base of left "B" pillar.
C308 (Light Gray, 14 Pin)	At left rear quarterpanel.
C309 (Dark Blue, 14 Pin)	At left rear quarterpanel.
C310 (Light Gray, 14 Pin)	At right rear quarterpanel.
C311 (Light Gray, 4 Pin)	At left front seat.
C312 (Light Gray, 10 Pin)	At left front seat.
C313 (Light Gray, 4 Pin)	At right front seat.
C314 (Light Gray, 10 Pin)	At right front seat.
C315 (Light Gray, 4 Pin)	At right front seat.
C317 (Light Gray, 2 Pin)	On rear bumper.
C318 (2 Pin)	At front of roof, in light bar harness.

Jeep Liberty Limited 2003 - GROUNDS

Jeep Liberty Limited 2003 GROUNDS LOCATION

Component	Location
G100	On left side of engine compartment.
G101 (2.4L)	On left side of engine. See Fig. 1 .
G102	On right rear of engine compartment.
G103 (3.7L)	On right front of engine. See Fig. 2 .
G104	Near engine control module.
G105	On left side of engine compartment.
G106	On left side of engine compartment.
G110	On left side of engine compartment.
G111	On left front of engine compartment. See Fig. 8 .
G112	On left front of engine compartment. See Fig. 8 .
G200	Near body control module.
G201	Under center console.
G202	At left kick panel.
G203	Under center of dash.
G300	At left front seat.
G301	Under center console.
G302	At right front seat.
G303	At left & right quarterpanel.
G320	At fuel tank.

Jeep Liberty Limited 2003 - SPLICES

Jeep Liberty Limited 2003 SPLICES LOCATION

Component	Location
S101	Near breakout to power distribution center.
S104	Near breakout to power distribution center.
S106	Near breakout to G112.
S108	Near breakout to C106, behind left headlight. See Fig. 8 .
S109	Near breakout to radiator fan relay, in wiring trough.
S110	Near breakout to C106, behind left headlight. See Fig. 8 .
S111	Near breakout to radiator fan relay, in wiring trough.
S112	Near breakout to power distribution center.
S113	In breakout to C100, below left side of dash.
S114	In breakout to C100, below left side of dash.
S115	Near breakout to powertrain control module.
S118	In breakout to C100.
S121	Near breakout to power distribution center.
S122	In breakout to controller anti-lock brake.
S123	At front of engine compartment, in wiring trough.
S124	In breakout to junction block.
S125	In breakout to junction block.
S130	Near breakout to left headlight.
S131	In breakout to right headlight.
S140	Near breakout to left front park/turn signal light.
S141	Near breakout to left foglight.
S142	Near breakout to left front park/turn signal light.
S143	Near breakout to right front park/turn signal light.
S144	Near breakout to left foglight.
S145	Near breakout to right front park/turn signal light.
S146	Near breakout to right front park/turn signal light.
S147	In front lighting harness.
S148	In front lighting harness.
S149	In front lighting harness.
S151 (2.4L)	Near breakout to C110, on rear of engine. See Fig. 1 .
S151 (3.7L)	Near breakout to fuel injector No. 3, in wiring trough. See Fig. 3 .
S152	Near breakout to fuel injector No. 4, in wiring trough.
S153 (2.4L)	Near breakout to coil rail. See Fig. 1 .
S153 (3.7L)	Near breakout to idle air control motor. See Fig. 3 .
S154 (3.7L)	Near breakout to starter motor. See Fig. 2 .
S155 (3.7L)	Near breakout to knock sensor. See Fig. 3 .
S156 (2.4L)	Near breakout to C112, in wiring trough.
S156 (3.7L)	Near breakout to powertrain control module.
S157	Near breakout for oxygen sensor 2/2 downstream.
S158	Near breakout to C112, in wiring trough.
S159 (3.7L)	Near breakout to knock sensor. See Fig. 3 .
S160	In breakout to C104.
S161 (A/T) (3.7L)	Near breakout to oxygen sensor 1/2 downstream. See Fig. 4 .
S163	In breakout to transmission control module.
S164	At right rear of engine compartment, in wiring trough.
S165	At right rear of engine compartment, in wiring trough.
S167	In breakout to transmission control module.
S168	Near breakout to fuel injector No. 6.
S169 (2.4L)	Near breakout to C101, on left rear of engine. See Fig. 1 .
S169 (3.7L)	Near breakout to oxygen sensor 1/1 upstream. See Fig. 3 .
S170	Near breakout to C103.
S175	On top of engine, in wiring trough.
S177	Near breakout to G100, in wiring trough.
S178	Near breakout to oxygen sensor 2/2 downstream.
S180	Near breakout to C103.
S181	Near breakout to G100, in wiring trough.
S184	Near breakout to powertrain control module.
S186	At breakout for engine control module.
S194	At breakout for junction block.
S199	Near breakout for accelerator pedal position sensor.
S200	Near breakout to C201.
S201	Near breakout to left dash light.
S204	Near breakout to data link connector.
S205	At breakout to C100.
S206	Near breakout to multifunction switch.
S207	In breakout to C100.
S208	Near breakout to G202.
S210	Near breakout to left dash light.
S212	Near breakout to diagnostic junction port.
S213	Near breakout to diagnostic junction port.
S214	Near breakout to air bag control module.
S215	Near breakout to multifunction switch.
S216	In breakout to instrument cluster.
S217	Near breakout to multifunction switch.
S218	Near breakout to multifunction switch.
S219	In breakout to junction block.
S220	In breakout to junction block.
S221	Near breakout to left speed control switch.
S222	Near breakout to right speed control switch.
S223	Near breakout to left remote radio switch.
S224	Near breakout to right remote radio switch.
S225	Near breakout for G203.
S230	At breakout for A/C-heater control.
S300	Near breakout to C309, at left "C" pillar.
S301	In breakout to radio.
S302	Near breakout to rear power outlet.
S303	Near breakout to shifter assembly.
S304	Near breakout to license plate light.
S306	Near breakout to G315.
S308	Near breakout to C309, at left "C" pillar.
S310	Near breakout to C310.
S312	Near breakout to G315.
S313	At left side of cargo area, in breakout to trailer tow relays.
S314	At left side of cargo area, in breakout to trailer tow relays.
S318	At left kick panel, near breakout to G309.
S319	Behind center of dash, near breakout to C201.
S322	Behind left side of dash.
S323	Behind left side of dash.
S324	Near breakout to right dash speaker.
S325	Near breakout to C201, behind center of dash.
S326	Near breakout to heated seat module.
S327	Near breakout to left heated seat assembly.
S328	In breakout to heated seat module.
S329	Near breakout to right heated seat switch.
S331	Near breakout to shifter assembly.
S333	Near breakout to G300, under left front seat.
S334	Near breakout to G302, at right kick panel.
S336	Behind left side of dash.
S338	Near breakout to C201, behind left center of dash.
S340	Near breakout to C201, behind left center of dash.
S341	Near breakout to C201, behind left center of dash.
S342	Near breakout to right dash speaker.
S344	Near breakout to right dash speaker.
S346	At left side of cargo area, in breakout to trailer tow relays.
S347	Near breakout to right tail/stoplight.
S348	Near breakout to right tail/stoplight.
S349	Near breakout to license plate light.
S350	Near breakout to license plate light.
S351	In breakout to rear window defogger.
S352	In breakout to rear window defogger.
S353	Between breakout for light bar light No. 2 & No. 3.
S354	Near breakout for light bar light No. 3.
S356	Near breakout to center high mounted stoplight.
S358	Near breakout for light bar light No. 3.
S359	Near breakout for light bar light No. 2.
S360	Near breakout to left power mirror.
S361	Near breakout to left power mirror.
S362	Near breakout to power mirror switch.
S363	Near breakout to left front door speaker.
S364	Near breakout to left front door speaker.
S370	Near breakout to right power mirror.
S371	Near breakout to right door lock switch.
S372	Near breakout to right front door speaker.
S373	Near breakout to right front door speaker.
S380	Near breakout to rear wiper motor.
S381	Near breakout to tailgate cylinder lock switch.
S382	Near breakout to license plate light.
S390	Near breakout to intrusion sensor.
S391	Near breakout to left visor/vanity light.
S392	Near breakout for left visor/vanity light.
S393	Near breakout to intrusion sensor.
S394	Near breakout for rear map/reading light.
S395	Near breakout for rear map/reading light.