2004 JEEP Wrangler

Jeep Wrangler SE 2004 - BUZZERS, RELAYS & TIMERS

Jeep Wrangler SE 2004 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
A/C Compressor Clutch Relay	In power distribution center. See Fig. 33 .
Antilock Brake Relay	In power distribution center. See Fig. 33 .
Automatic Shut Down Relay	In power distribution center. See Fig. 33 .
Blower Motor Relay	Near right end of heater-A/C housing.
Engine Starter Motor Relay	In power distribution center. See Fig. 33 .
Fog Lamp Relay	In power distribution center. See Fig. 33 .
Front Locker Relay	In power distribution center. See Fig. 33 .
Fuel Pump Relay	In power distribution center. See Fig. 33 .
Horn Relay	In power distribution center. See Fig. 33 .
Oxygen Sensor Downstream Heater Relay	In power distribution center. See Fig. 33 .
Radiator Fan Relay	On engine side of power distribution center.
Rear Locker Relay	In power distribution center. See Fig. 33 .
Rear Window Defogger Relay	In power distribution center. See Fig. 33 .
Transmission Control Relay	In power distribution center. See Fig. 33 .

Jeep Wrangler SE 2004 - CIRCUIT PROTECTION DEVICES

Jeep Wrangler SE 2004 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Circuit Breaker	Near fuse block. See Fig. 16 .
Fuse Block	Under right center of dash.
Power Distribution Center	On right side of engine compartment. See Fig. 7 .
Radiator Fan Motor Circuit Breaker (2.4L)	On right radiator fan shroud. See Fig. 5 .

Jeep Wrangler SE 2004 - CONTROL UNITS

Jeep Wrangler SE 2004 CONTROL UNITS LOCATION

Component	Location
Airbag Control Module	Front of floorpan tunnel. See Fig. 17 .
Controller Anti-Lock Brake	At left rear corner of engine compartment. See Fig. 7 .
Daytime Running Lamp (DRL) Module	In rear of engine compartment, on firewall.
Powertrain Control Module	In right rear of engine compartment, on firewall. See Fig. 7 .
Sentry Key Immobilizer Module	On steering column, near ignition lock cylinder. See Fig. 22 .
Transmission Control Module	On left fender shield. See Fig. 8 .

Jeep Wrangler SE 2004 - MOTORS

Jeep Wrangler SE 2004 MOTORS LOCATION

Component	Location
Blend Door Actuator	On heater-A/C housing.
Blower Motor	On right rear of engine compartment.
Front Locker Pump	Top of locker pump bracket. See Fig. 23 .
Front Washer Pump	Under washer fluid reservoir. See Fig. 1 .
Front Wiper Motor	Left center of firewall. See Fig. 10 .
Fuel Pump Module	On fuel tank. See Fig. 30 .
Idle Air Control Motor (2.4L)	At top of engine. See Fig. 3 .
Idle Air Control Motor (4.0L)	On side of throttle body assembly. See Fig. 4 .
Leak Detection Pump	Right rear quarterpanel, forward of taillamp assembly. See Fig. 31 .
Radiator Fan Motor (2.4L)	On right side of radiator fan shroud. See Fig. 5 .
Rear Locker Pump	Top of locker pump bracket. See Fig. 23 .
Rear Washer Pump	Under washer fluid reservoir. See Fig. 1 .
Rear Wiper Motor	Inside of liftglass. See Fig. 29 .
Speed Control Servo	On left side of engine compartment. See Fig. 8 .

Jeep Wrangler SE 2004 - SENDING UNITS & SENSORS

Jeep Wrangler SE 2004 SENDING UNITS & SENSORS LOCATION

Component	Location
Ambient Temperature Sensor	Behind left front fender side shield. See Fig. 1 .
Battery Temperature Sensor	On bottom of battery tray. See Fig. 7 .
Camshaft Position Sensor (2.4L)	Right front of engine, behind air cleaner.
Camshaft Position Sensor (4.0L)	On right side of engine, near oil filter. See Fig. 6 .
Crankshaft Position Sensor (2.4L)	On left transmission bellhousing, at left rear side of engine block.
Crankshaft Position Sensor (4.0L)	At rear of intake manifold. See Fig. 6 .
Engine Coolant Temperature Sensor (2.4L)	On thermostat housing. See Fig. 14 .
Engine Coolant Temperature Sensor (4.0L)	On thermostat housing. See Fig. 4 .
Input Speed Sensor (4.0L)	Near breakout to idle air control motor. See Fig. 12 .
Intake Air Temperature Sensor (4.0L)	Rear of intake manifold. See Fig. 4 .
Left Front Wheel Speed Sensor	Left side of engine compartment. See Fig. 7 .
Left Rear Wheel Speed Sensor	Near vehicle speed sensor breakout. See Fig. 30 .
Manifold Absolute Pressure Sensor (2.4L)	At top of engine. See Fig. 3 .
Manifold Absolute Pressure Sensor (4.0L)	Side of throttle body. See Fig. 4 .
Output Speed Sensor (4.0L)	At left rear side of transmission. See Fig. 12 .
Oxygen Sensor 1/1 Upstream (2.4L)	On front exhaust pipe. See Fig. 13 .
Oxygen Sensor 1/1 Upstream (4.0L)	On front exhaust pipe. See Fig. 4 .
Oxygen Sensor 1/2 Downstream (2.4L)	Rear of catalytic converter. See Fig. 28 .
Oxygen Sensor 1/2 Downstream (4.0L)	Rear of catalytic converter. See Fig. 4 .
Oxygen Sensor 2/1 Upstream (4.0L)	Near idle control motor breakout. See Fig. 4 .
Oxygen Sensor 2/2 Downstream (4.0L)	Near breakout to ignition coil pack. See Fig. 6 .
Right Rear Wheel Speed Sensor	Near vehicle speed sensor breakout. See Fig. 30 .
Throttle Position Sensor (2.4L)	Side of throttle body. See Fig. 14 .
Throttle Position Sensor (4.0L)	On throttle body assembly. See Fig. 4 .
Transfer Case Position Sensor	Left side of transfer case. See Fig. 23 .
Transmission Range Sensor (4.0L)	At left center of transmission. See Fig. 12 .
Vehicle Speed Sensor (VSS)	On extension housing of transfer case. See Fig. 23 .

Jeep Wrangler SE 2004 - SOLENOIDS & SOLENOID VALVES

Jeep Wrangler SE 2004 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
A/C Compressor Clutch (2.4L)	Right front of engine. See Fig. 5 .
A/C Compressor Clutch (4.0L)	Lower left front of engine. See Fig. 4 .
Brake Transmission Shift Interlock Solenoid	Left side of steering column.
Engine Starter Solenoid	Left side of engine. See Fig. 3 .
EVAP/Purge Solenoid	On left fender side shield. See Fig. 8 .
Fuel Injector No. 1 (4.0L)	At injector. See Fig. 4 .
Fuel Injector No. 2 (4.0L)	At injector. See Fig. 4 .
Fuel Injector No. 3 (4.0L)	At injector. See Fig. 4 .
Fuel Injector No. 4 (4.0L)	At injector. See Fig. 6 .
Fuel Injector No. 5 (4.0L)	At injector. See Fig. 4 .
Fuel Injector No. 6 (4.0L)	At injector. See Fig. 4 .
Ignition Coil Pack (2.4L)	Right side of engine. See Fig. 3 .
Ignition Coil Pack (4.0L)	Right rear of engine. See Fig. 6 .
Speed Control Servo	On left side of engine compartment. See Fig. 8 .

Jeep Wrangler SE 2004 - SWITCHES

Jeep Wrangler SE 2004 SWITCHES LOCATION

Component	Location
A/C High Pressure Switch (4.0L)	On A/C compressor discharge line. See Fig. 4 .
A/C Low Pressure Switch (2.4L)	On A/C accumulator. See Fig. 5 .
A/C Low Pressure Switch (4.0L)	Near powertrain control module. See Fig. 15 .
Back-Up Lamp Switch (M/T)	On left side of transmission. See Fig. 27 .
Back-Up Lamp Switch (M/T BUX)	Right side of transmission. See Fig. 26 .
Back-Up Lamp Switch (2.4L) (M/T)	Right side of transmission. See Fig. 28 .
Brake Lamp Switch	On bracket, above brake pedal. See Fig. 18 .
Brake Warning Indicator Switch	In combination valve. See Fig. 7 .
Clutch Pedal Position Switch	Top of clutch pedal bracket. See Fig. 18 .
Driver Door Ajar Switch	Left "A" pillar. See Fig. 18 .
Engine Oil Pressure Switch (2.4L)	Below A/C compressor.
Engine Oil Pressure Switch (4.0L)	At right side of engine block. See Fig. 11 .
Front Locker Indicator Switch	Top of front differential. See Fig. 24 .
G-Switch	In front of console/shifter, mounted to bracket on floorpan. See Fig. 17 .
Park Brake Switch	On park brake mechanism. See Fig. 17 .
Passenger Door Ajar Switch	Near top hinge of passenger door. See Fig. 16 .
Power Steering Pressure Switch (2.4L)	Behind power steering pump. See Fig. 3 .
Rear Locker Indicator Switch	Top of rear differential. See Fig. 25 .
Seat Belt Switch	In driver's seat belt buckle. See Fig. 17 .
Transmission Solenoid/Pressure Switch Assembly	At right center of transmission. See Fig. 11 .

Jeep Wrangler SE 2004 - MISCELLANEOUS

Jeep Wrangler SE 2004 MISCELLANEOUS LOCATION

Component	Location
A/C Pressure Transducer (2.4L)	Near compressor. See Fig. 5 .
Blower Motor Resistor Block	Under right side of dash, on HVAC module.
Capacitor (2.4L)	Right rear of engine. See Fig. 13 .
Data Link Connector	Bottom left end of dash. See Fig. 19 .
Generator (2.4L)	Left front of engine. See Fig. 3 .
Generator (4.0L)	Right front of engine. See Fig. 6 .
Ground Strap	Center rear of hood. See Fig. 7 .
Horn	Near left headlamp. See Fig. 1 .
Passenger Airbag	Right side of dash. See Fig. 16 .

Jeep Wrangler SE 2004 - CONNECTORS

Jeep Wrangler SE 2004 CONNECTORS LOCATION

Component	Location
C103 (Black, 14 Pin)	At rear of engine compartment. See Fig. 7 .
C104 (Gray, 14 Pin)	At rear of engine compartment. See Fig. 7 .
C107 (Yellow, 14 Pin)	At left kick panel. See Fig. 29 .
C109 (Light Gray, 10 Pin)	At rear of engine compartment. See Fig. 7 .
C110 (Black, 14 Pin)	At left front fender. See Fig. 7 .
C115 (Black)	On transfer case. See Fig. 23 .
C116 (Light Gray)	On transfer case. See Fig. 23 .
C120 (2.4L) (Black)	At right side of radiator fan shroud. See Fig. 5 .
C154 (Black, 4 Pin)	On top right rear of transmission. See Fig. 26 .
C170 (Light Gray/Black, 10 Pin)	At left kick panel. See Fig. 18 .
C180 (Black, 2 Pin)	Below EVAP/purge solenoid.
C181 (Black, 10 Pin)	Left rear of engine. See Fig. 3 .
C182 (Black, 14 Pin)	Left rear of engine. See Fig. 3 .
C202 (Gray, 12 Pin)	At left kick panel. See Fig. 29 .
C203 (Green, 14 Pin)	At left kick panel. See Fig. 21 .
C205 (Light Green, 10 Pin)	At left kick panel. See Fig. 20 .
C324 (White/Black, 6 Pin)	At left side of sound bar.
C325 (White/Black, 6 Pin)	At left side of sound bar. See Fig. 29 .
C326 (Black, 10 Pin)	At left rear quarterpanel. See Fig. 29 .
C380 (Black, 3 Pin)	Rear of left quarterpanel. See Fig. 32 .

Jeep Wrangler SE 2004 - GROUNDS

Jeep Wrangler SE 2004 GROUNDS LOCATION

Component	Location
G100	On left center of firewall. See Fig. 7 .
G101	On center of firewall. See Fig. 7 .
G102	On left side of radiator closure panel. See Fig. 1 .
G103	On right side of radiator closure panel. See Fig. 2 .
G104	Near rear of generator.
G105 (2.4L)	Near left engine mount. See Fig. 3 .
G105 (4.0L)	Right rear of engine block. See Fig. 6 .
G106	On right rear of engine block.
G107	On right rear of engine block.
G110	Near left engine mount. See Fig. 3 .
G111 (4.0L)	Near right rear of engine. See Fig. 6 .
G190 (2.4L)	Near right headlamp. See Fig. 9 .
G191 (2.4L)	Near right headlamp. See Fig. 9 .
G200	Behind left end of dash. See Fig. 19 .
G201	Behind left end of dash. See Fig. 19 .
G202	Behind right end of dash. See Fig. 20 .
G203	Behind right end of dash. See Fig. 20 .
G300	At left kick panel. See Fig. 18 .
G301	Between front seats. See Fig. 17 .
G302	At left kick panel. See Fig. 18 .
G303	Near steering column mounting bracket.

Jeep Wrangler SE 2004 - SPLICES

Jeep Wrangler SE 2004 SPLICES LOCATION

Component	Location
S101	Near breakout to power distribution center. See Fig. 7 .
S102	At left side of firewall, near breakout to G100. See Fig. 7 .
S103	At right center of firewall, near breakout to G101. See Fig. 7 .
S105	Near breakout to daytime running lamp module.
S106	On left side of firewall. See Fig. 7 .
S108	Near breakout to power distribution center. See Fig. 7 .
S111	Near breakout to battery temperature sensor. See Fig. 7 .
S113	Near breakout to G100, on left center of firewall. See Fig. 7 .
S115	At left fender shield harness tie down. See Fig. 1 .
S116	Near breakout for front washer pump. See Fig. 1 .
S117	Near breakout to horn. See Fig. 1 .
S118	Near breakout to left headlamp. See Fig. 1 .
S121 (4.0L)	Near breakout to powertrain control module. See Fig. 15 .
S122	Near grommet for left park/turn signal lamp.
S123 (2.4L)	Near breakout for ignition coil pack.
S123 (4.0L)	At rear of engine, near breakout to G105.
S124 (2.4L)	Near breakout for ignition coil pack. See Fig. 4 .
S124 (4.0L)	At rear of engine, near breakout to G105.
S126 (4.0L)	On rear of cylinder head, near breakout to C103. See Fig. 15 .
S127 (4.0L)	Near breakout to idle air control motor. See Fig. 4 .
S128 (2.4L)	On engine harness, near breakout for C103.
S128 (4.0L)	On engine harness, between fuel injectors No. 2 & No. 3. See Fig. 4 .
S129 (4.0L)	On rear of engine, near breakout to C104. See Fig. 15 .
S130 (2.4L)	On engine harness, near breakout for C103.
S130 (4.0L)	On rear of engine, near breakout to C104. See Fig. 15 .
S132 (2.4L)	Near breakout for engine starter solenoid.
S132 (4.0L)	At right side transmission. See Fig. 6 .
S133 (2.4L)	Near breakout for input speed sensor.
S133 (4.0L)	At right side transmission. See Fig. 6 .
S134 (2.4L)	Between engine starter solenoid & C182.
S134 (4.0L)	Near breakout for C154. See Fig. 15 .
S135 (2.4L)	Between engine starter solenoid & C182.
S135 (4.0L)	Near breakout for oxygen sensor 1/2 (downstream).
S136 (4.0L)	In battery harness, near power distribution center. See Fig. 15 .
S137 (4.0L)	Near breakout to throttle position sensor.
S138	At center of radiator closure panel. See Fig. 2 .
S140	Near breakout to C104.
S141	Near breakout to left front park/turn signal lamp.
S142	Near breakout to right park/turn signal lamp. See Fig. 2 .
S143	Near breakout to left park/turn signal lamp.
S144	Near breakout to right park/turn signal lamp. See Fig. 2 .
S147	On center of firewall, near breakout to underhood lamp. See Fig. 7 .
S150	Near breakout to right headlamp. See Fig. 2 .
S151	Near breakout to left headlamp. See Fig. 2 .
S152	Near breakout to left headlamp.
S153 (4.0L)	Near breakout to camshaft position sensor. See Fig. 6 .
S155 (W/Daytime Running Lamps)	Near breakout to daytime running lamp control module. See Fig. 7 .
S156	Near breakout to ABS pump motor. See Fig. 7 .
S157 (2.4L)	Between engine starter solenoid & C181.
S157 (4.0L) (A/T)	Near breakout for powertrain control module. See Fig. 15 .
S158	Near breakout for power steering pressure switch.
S159	Near breakout for power steering pressure switch.
S160	In breakout for transmission control module.
S161	Near breakout for ignition coil pack.
S162 (2.4L)	Near breakout for oxygen sensor 1/1 upstream.
S162 (4.0L) (A/T)	Near breakout for A/C low pressure sensor. See Fig. 15 .
S163 (4.0L)	Between G101 & right front wheel speed sensor. See Fig. 15 .
S164	Near breakout for rear locker indicator switch in-line C116. See Fig. 23 .
S170	Near brake booster, 150 mm from G100.
S171	200 mm from battery temperature sensor breakout, toward G101.
S172	In harness, between G100 & C103.
S173	Near G100.
S176	In fuel injector harness.
S177	In fuel injector harness.
S178	In engine harness, near breakout for C103.
S202	Center of dash. See Fig. 19 .
S204	Behind lower center of dash. See Fig. 21 .
S206	Behind lower center of dash. See Fig. 21 .
S207	Behind center of dash, near breakout to cigar lighter. See Fig. 21 .
S208	Near breakout to blower motor.
S209	Behind left side of dash, near breakout to C202, C203 & C204. See Fig. 19 .
S210	Near breakout to A/C heater control C3. See Fig. 21 .
S211	Near breakout for C202. See Fig. 19 .
S212	Near breakout to right courtesy lamp. See Fig. 19 .
S213	Behind center rear of dash. See Fig. 20 .
S214	Behind center rear of dash. See Fig. 20 .
S215	Behind center rear of dash. See Fig. 20 .
S216	Behind left side of dash. See Fig. 19 .
S217	Behind left side of dash. See Fig. 19 .
S302	In breakout to steering column. See Fig. 16 .
S304	Behind left side of dash. See Fig. 16 .
S309	Near left taillamp connector. See Fig. 29 .
S310	At left rear quarterpanel, near body grommet. See Fig. 29 .
S311	Near left taillamp connector. See Fig. 29 .
S315	Left side of dash. See Fig. 16 .
S320	Behind left side of dash, near 100-way connector. See Fig. 29 .
S331	Behind left side of dash, near 100-way connector. See Fig. 16 .
S335	Near left taillamp connector. See Fig. 29 .
S351	Near breakout to sport bar. See Fig. 29 .
S352	Forward of S351. See Fig. 29 .
S353	Behind left side of dash). See Fig. 16 .
S355	Near breakout to steering column. See Fig. 16 .
S356	In harness, 254 mm from breakout to rear washer. See Fig. 29 .
S357	In harness, 508 mm from breakout to rear washer. See Fig. 29 .
S358	In harness, 762 mm from breakout to rear washer. See Fig. 29 .
S359	Near fuse block. See Fig. 29 .
S360	Near breakout for rear window defogger feed. See Fig. 29 .
S361	Near breakout for rear window defogger feed. See Fig. 29 .