ENGINE PERFORMANCE – Jeep Wrangler X 2003 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.4L

2.4L, Engine Performance Wiring Diagram (1 of 3) for Jeep Wrangler X 2003

List of elements for 2.4L, Engine Performance Wiring Diagram (1 of 3) for Jeep Wrangler X 2003:

• (near breakout at right rear of engine block)
• (near breakout on top right side of transmission)
• (not used)
• (on engine harness, rear of engine) s178
• (on left center of transmission)
• (rear of engine compt)
• (right side of eng) ignition coil
• A/c press sig
• A/c system
• A/t
• A11
• A13
• A14
• A15
• Automatic shutdown relay
• C10
• C18
• Cam pos sns
• Camshaft position sensor (right front of engine, behind air cleaner)
• Charging system
• Coil 1 driver
• Coil 2 driver
• Coil capacitor (right rear of engine)
• Cooling fan system
• Crnk pos sns
• Dnstrm ho2s
• Ect sens sig
• Engine oil pressure switch (below a/c compressor)
• Engine starter motor relay
• F15
• Fuel injector 1
• Fuel injector 2
• Fuel injector 3
• Fuel injector 4
• Fuel pump relay
• Fuse 15a
• Fuse 20a
• Fuse 30a
• Fused b(+)
• G105 (right rear of engine block)
• G60
• Gen field
• Ground
• Headlights system
• Hi spd rly
• Hot at all times
• Iat sens sig
• Idle air 1
• Idle air 2
• Idle air 3
• Idle air 4
• Ign power
• Ign sw st
• Inj 1 driver
• Inj 2 driver
• Inj 3 driver
• Inj 4 driver
• K10
• K11
• K12
• K13
• K14
• K141
• K17
• K173
• K19
• K20
• K21
• K22
• K24
• K39
• K40
• K41
• K44
• K59
• K60
• M/t
• Map sens sig
• Nca
• Oil press sns
• P/s switch
• Pnp sw sens
• Power distribution center (on right side of eng compt, on inner fender panel)
• Powertrain control module (in right rear of engine compt, on firewall)
• S101 (near breakout for pdc)
• S123
• S128
• S130
• S132
• S134
• S135 (near breakout for ho2s)
• Sensor gnd
• T141
• T23
• T41
• Tan
• Torque converter clutch solenoid (on transmission valve body)
• Tps sens sig
• Trans l/o sol
• Transmission range sensor
• Upstrm ho2s
• Vehicle speed sensor (vss) (on extension housing of transfer case)
• Vss sig
• Z12

2.4L, Engine Performance Wiring Diagram (2 of 3) for Jeep Wrangler X 2003

List of elements for 2.4L, Engine Performance Wiring Diagram (2 of 3) for Jeep Wrangler X 2003:

• (in fuel injector harness) s176
• (in fuel injector harness) s177
• (near breakout at right rear of engine block) s124
• (near breakout for iac motor)
• (near breakout for iss) s133
• (near breakout for underhood lamp, rear of engine compt) s147
• Crankshaft position sensor (on transmission bellhousing, at left rear side of engine block)
• Cruise control system
• Driver iac 2
• Engine coolant temperature sensor (on thermostat housing)
• Fuel pump module (on fuel tank)
• Fuse 10a
• Fuse 20a
• Fuse block (under right side of dash)
• G105 (right rear of engine block)
• Hot in run or start
• Hot in start
• Iac 1 driver
• Iac 3 driver
• Iac 4 driver
• Idle air control motor (on side of throttle body assembly)
• Intake air temperature sensor (on intake manifold plenum, near throttle body)
• Manifold absolute pressure (map) sensor (on side of throttle body assembly)
• Nca
• Oxygen sensor 1/1 (upstream) (on exhaust downpipe)
• Oxygen sensor 1/2 (downstream) (on rear of catalytic converter)
• S102
• S127
• S132
• S162
• Sensor gnd
• Sensor signal

2.4L, Engine Performance Wiring Diagram (3 of 3) for Jeep Wrangler X 2003

List of elements for 2.4L, Engine Performance Wiring Diagram (3 of 3) for Jeep Wrangler X 2003:

• (left side of steering column) brake transmission shift interlock solenoid
• (not used)
• A/c comp rly
• A/c compressor clutch relay
• A/c select in
• A/c sw sense
• A/c system
• A10
• A142
• Anti-lock brake system
• Asd relay sens
• Auto sht rly
• Batt temp sens
• Battery temperature sensor (on bottom of battery tray)
• Brake sw sense
• C13
• C202
• C21
• C90
• Ckp signal
• Cruise control system
• Cruise sw in
• Cruise sw sens
• Cruise vac sol
• Cruise vnt sol
• D21
• D25
• D32
• Data link connector (dlc) (partial) (bottom left side of dash)
• Evap sol drvr
• Evap/purge solenoid (on left fender side shield)
• F15
• Fuel level sens
• Fuel pmp rly
• Fuse 10a
• Fuse block (under right side of dash)
• G105 (right rear of engine block)
• G300 (left kick panel)
• Generator
• H02s down cntl
• H02s up cntl
• Hot in run or start
• Ign
• Instrument cluster
• K106
• K107
• K118
• K125
• K22
• K226
• K24
• K29
• K299
• K31
• K51
• K52
• K99
• Leak detct pmp
• Leak detect pmp
• Leak detect sw
• Leak detection pump (in left side of engine compt, near evap canister)
• Mil ind
• Pci bus
• Pnk
• Power steering pressure switch (behind power steering pump)
• Powertrain control module (in right rear of engine compt, on firewall)
• S113 (near breakout for ground at rear center of engine compt)
• S132
• S209 (near breakout on left kick panel)
• Sci receive
• Sci transmit
• Sensor gnd
• Starting/ charging system
• Stoplight switch (top of brake pedal bracket)
• T10
• Tan/red
• Throttle position sensor (on throttle body assembly)
• Tor man req
• Torque man req
• Tps signal
• Transmission control module (on left fender shield)
• V32
• V35
• V36
• V37

4.0L

4.0L, Engine Performance Wiring Diagram (1 of 3) for Jeep Wrangler X 2003

List of elements for 4.0L, Engine Performance Wiring Diagram (1 of 3) for Jeep Wrangler X 2003:

• (between fuel injectors 2 & 3) s128
• (between g101 and rf wheel sensor) s163
• (lev only)
• (near break- out for pdc) s101
• (near breakout for camshaft position sensor)
• (near breakout for coil pack) s161
• (near breakout on top right side of transmission)
• (w/ drl)
• 5 v
• A/t
• A11
• A13
• A14
• A15
• Automatic shutdown relay
• C10
• Cam pos sns
• Capacitor
• Crnk pos sns
• Dnstrm ho2s
• Ect sens sig
• Engine starter motor relay
• F15
• Fuel injectors
• Fuel pump relay
• Fuse 20a
• Fuse 30a
• Fused b(+)
• G105 (right rear of engine block)
• G60
• Gen field
• Gnd
• Ground
• Headlights system
• Hot at all times
• Iat sens sig
• Idle air 1
• Idle air 2
• Idle air 3
• Idle air 4
• Ign coil 1 drv
• Ign coil 2 drv
• Ign coil 3 drv
• Ign power
• Ignition coil pack
• Inj 1 driver
• Inj 2 driver
• Inj 3 driver
• Inj 4 driver
• Inj 5 driver
• Inj 6 driver
• K11
• K12
• K13
• K14
• K141
• K16
• K17
• K18
• K19
• K20
• K21
• K22
• K24
• K241
• K341
• K38
• K39
• K40
• K41
• K44
• K59
• K60
• M/t
• Map sens sig
• Nca
• Oil press sns
• Pnp sw sens
• Power distribution center (on right side of engine compt, on inner fender panel)
• Powertrain control module (in right rear of engine compt, on firewall)
• S126 (near break- out for c104, rear of engine compt)
• S130
• S132
• S134
• S153
• Sensor gnd
• Start sig
• Starting/ charging system
• T141
• T41
• Tan
• To spark plugs
• Tps sens sig
• Transmission range sensor (left center of transmission)
• Upstrm ho2s
• Vehicle speed sensor (vss) (on extension housing of transfer case)
• Vss in
• Vss sig
• Z12

4.0L, Engine Performance Wiring Diagram (2 of 3) for Jeep Wrangler X 2003

List of elements for 4.0L, Engine Performance Wiring Diagram (2 of 3) for Jeep Wrangler X 2003:

• (a/t) (m/t)
• (near breakout for c104)
• (near breakout for c104, rear of engine compt)
• (near breakout for iac motor) s127
• (near breakout for pcm conn c2) s121
• (on exhaust downpipe) heated oxygen sensor 1/1 (upstream) (ex lev)
• (on exhaust manifold) heated oxygen sensor 1/1 (upstream) (lev only)
• (on exhaust manifold) heated oxygen sensor 2/1 (upstream) (lev only)
• (on outlet end of mini-catalytic converter) heated oxygen sensor 1/2 (downstream) (lev only)
• (on outlet end of mini-catalytic converter) heated oxygen sensor 2/2 (downstream) (lev only)
• (on rear of catalytic converter) heated oxygen sensor 1/2 (downstream) (ex lev)
• (top right side of transmission) s133
• 5 v
• B11
• B12
• B13
• B15
• Camshaft position sensor (on right side of engine, near oil filter)
• Crankshaft position sensor (on transmission bellhousing, at left rear side of engine block)
• Driver iac 3
• Driver iac 4
• Engine coolant temperature sensor (on thermostat housing)
• Engine oil pressure sensor (right side of engine block)
• Ex lev
• Fuse 10a
• Fuse 15a
• Fuse block (under right side of dash)
• G105 (right rear of engine block)
• Gnd
• Hot in run or start
• Hot in start
• Iac 1 driver
• Iac 2 driver
• Idle air control motor (on side of throttle body assembly)
• Intake air temperature sensor (on intake manifold plenum, near throttle body)
• Lev
• Manifold absolute pressure sensor (on side of throttle body assembly)
• Nca
• Oxygen sensor downstream heater relay (lev only)
• Power distribution center (on right side of engine compt, on inner fender panel)
• S124 (near breakout at right rear of engine block)
• S129
• S132
• S137
• S140
• S157
• S162
• S172 (m/t) (a/t)
• Signal

4.0L, Engine Performance Wiring Diagram (3 of 3) for Jeep Wrangler X 2003

List of elements for 4.0L, Engine Performance Wiring Diagram (3 of 3) for Jeep Wrangler X 2003:

• (200 mm from battery sensor breakout)
• (left side of steering column) brake transmission shift interlock solenoid
• (lev only)
• (near brake booster 150 mm from g100)
• (near breakout for underhood lamp, rear of engine compt)
• (not used)
• A/c comp rly
• A/c compressor clutch relay
• A/c select in
• A/c sw sense
• A/c system
• A142
• Asd relay out
• Auto sht rly
• Batt temp sens
• Battery temperature sensor (on bottom of battery tray)
• Brake sw sense
• C13
• C21
• C90
• Cruise control system
• Cruise sw in
• Cruise sw sense
• Cruise vac sol
• Cruise vnt sol
• D21
• D25
• D32
• Data link connector (dlc) (partial) (bottom left side of dash)
• Evap/purge sol
• Evap/purge solenoid (on left fender side shield)
• Ex lev
• F15
• Fuel level sens
• Fuel pmp rly
• Fuel pump module (on fuel tank)
• Fuse 10a
• Fuse block (under right side of dash)
• G105 (right rear of engine block)
• G300 (left kick panel)
• Generator
• Ho2s dn rly ctrl
• Ho2s up ctrl
• Hot in run or start
• Instrument cluster
• K106
• K107
• K118
• K125
• K22
• K226
• K24
• K29
• K299
• K31
• K51
• K512
• K52
• K99
• Leak detect pmp
• Leak detect sw
• Leak detection pump (in left side of engine compt, near evap canister)
• Lev
• Mil ind
• Pci bus
• Pnk
• Powertrain control module (in right rear of engine compt, on firewall)
• S102
• S113 (near breakout for ground at rear center of engine compt)
• S132
• S147
• S158 (near breakout for psp switch)
• S170
• S171
• S209 (near break- out on left kick panel)
• Sci receive
• Sci transmit
• Starting/ charging system
• Stoplight switch (top of brake pedal bracket)
• T10
• Tan/red
• Throttle position sensor (on throttle body assembly)
• Torque man req
• Transmission control module (on left fender shield)
• V32
• V35
• V36
• V37