All Wiring Diagrams for Jeep Grand Cherokee Laredo 2003 model

AIR CONDITIONING

Automatic A/C Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Automatic A/C Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (4.0l: near breakout for g103) (4.7l: near breakout for fuel injector 1)
• (4.7l)
• (in trough near breakout for front power outlet) s201
• (near air bag control module) g200
• (near breakout for c102) s112 (4.0l) s112 (4.7l) (near break0ut for coil on plug 6)
• A/c comp relay ctrl
• A/c compressor clutch
• A/c compressor clutch relay
• A/c press signal
• A/c pressure transducer (behind right side radiator support)
• A/c switch signal
• Automatic zone control module
• Blower motor (on passenger side end of heater-a/c housing)
• Blower motor controller (on heater-a/c housing, inboard of blower motor)
• Blower motor ctrl
• Blower mtr ctrl
• Blwr mtr high dr
• Body control module (on left end of dash, attached to junction block)
• C100
• C102
• C103
• C13
• C18
• C32
• C33
• C35
• C56
• C79
• C81
• C94
• C95
• C96
• Compartment)
• Control
• D25
• Data link connector (dlc) (under left side of dash, near steering column)
• Defogger sw sense
• Defogger system
• Dr blend door dr (a)
• Dr blend door dr (b)
• Dr blnd door driver (a)
• Driver blend door motor/actuator (on front of heater-a/c housing)
• Driver blnd dr driver (b)
• Engine coolant sens sig
• F142
• F22
• For front power outlet) s201
• Fuse 11 10a
• Fuse 15a
• Fuse 20 10a
• Fuse 21 10a
• Fuse 40a
• Fuse 7 10a
• Fused (b+)
• Fused defog rly out
• Fused relay out
• G104 (4.7l: left side of engine) (4.0l: right rear of engine)
• G108 (near power distribution center)
• Ground
• Hot at all times
• Hot in run
• Hot in run or start
• Hot w/automatic shut down (asd) relay energized
• Hot w/rear window defogger relay energized
• Hydraulic cooling module (right front of engine
• Ignition
• Junction block (behind left side of dash)
• K173
• Mode door driver (a)
• Mode door driver (b)
• Mode door motor/actuator (on left end of heater-a/c housing)
• Output
• Panel lamps driver
• Pass blend door dr (a)
• Pass blend door dr (b)
• Pass blend dr driver (b)
• Pass blnd dr driver (a)
• Passenger blend door motor/actuator (on heater-a/c housing)
• Pci bus
• Pnk
• Power distribution center (at right front corner of engine compartment, next to battery)
• Powertrain control module (on right side of firewall)
• Radiator fan motor (behind
• Radiator fan motor relay (4.0l)
• Radiator)
• Recirc door driver (a)
• Recirc door driver (b)
• Recirculation door motor/actuator (on heater-a/c housing)
• S102
• S210 (in trough, near breakout for left courtesy)
• Sensor ground
• Signal
• Z118
• Z500

Manual A/C Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Manual A/C Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (4.0l: near breakout for g103 (4.7l: near breakout for fuel injector no.1)
• (4.7l)
• (near airbag control module) g200
• (near breakout for c102,c103 & c104.) s112 (4.0l) s112 (4.7l) (near break0ut for coil on plug 6)
• (near breakout for junction block.) s316
• A/c comp relay ctrl
• A/c compressor clutch
• A/c compressor clutch relay
• A/c press signal
• A/c pressure transducer (behind right side radiator support)
• A/c switch signal
• Blend air dr posit ctrl
• Blower motor (on passenger side end of heater-a/c housing)
• Blower motor m1 driver
• Blower motor m2 driver
• Blower motor resistor block (bottom of heater-a/c housing, inboard of blower motor)
• Blower mtr high driver
• Blower mtr low driver
• Body control module (on left end of dash, attached to junction block)
• C103
• C13
• C18
• Control
• Defogger relay output
• Defogger switch sense
• Defogger system
• Engine coolant sens sig
• F142
• Fuse 15a
• Fuse 20 10a
• Fuse 21 10a
• Fuse 40a
• Fused relay out
• G104 (4.7l: left side of engine) (4.0l: right rear of engine)
• G108 (near power distribution center)
• Ground
• Hot at all
• Hot at all times
• Hot in run
• Hot in run or start
• Hot w/automatic shut down (asd) relay energized
• Hydraulic cooling module (right front of engine compartment)
• Ignition
• Junction block (behind left side of dash)
• K173
• Manual temperature control
• Output
• Panel lamps driver
• Pnk
• Power distribution center (at right front corner of engine compartment, next to battery)
• Powertrain control module (on right side of firewall)
• Radiator fan motor (behind radiator)
• Radiator fan motor relay (4.0l)
• S102
• S132 (near break0ut for battery temperature sensor)
• Sensor ground
• Signal
• Tan
• Temperature valve actuator
• Times
• Z500

ANTI-LOCK BRAKES

Anti-lock Brakes Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Anti-lock Brakes Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (near breakout for c200)
• (right side of firewall) powertrain control module
• A10
• A20
• Abs warnning indicator
• B22
• Brake fluid level sw
• Brake lamp switch (top of brake pedal arm)
• Computer data lines system
• Controller antilock brake (left side of eng compt, mounted to hydraulic control unit)
• D25
• Data link connector (under left side of dash, near steering column)
• Exterior lights system
• F20
• Fuse 10a
• Fuse 15a
• Fuse 20a
• Fuse 40a
• Fuse b (+)
• Fused ign (run)
• G107 (left side of eng comp)
• Ground
• Hot at all times
• Hot in run
• Hot in run or start
• Ignition
• Instrument cluster
• Junction block (behind left side of dash)
• L50
• Left front wheel speed sensor (on left front steering knuckle)
• Left rear wheel speed sensor (on left rear brake backing plate)
• Lf wheel spd sens 12v
• Lf wheel spd sens sig
• Lr wheel spd sens 12v
• Lr wheel spd sens sig
• Pci bus
• Power distribution center (at right front corner of eng compt, next to battery)
• Primary brake sw sig
• Red
• Red brake warning indicator switch (at master cylinder)
• Rf wheel spd sens 12v
• Rf wheel spd sens sig
• Right front wheel speed sensor (on right front steering knuckle)
• Right rear wheel speed sensor (on right rear brake backing plate)
• Rr wheel spd sens 12v
• Rr wheel spd sens sig
• S130
• S210 (in trough, near breakout for left courtesy lamp)
• S226
• S312
• S313 (near breakout for g301)
• S324 (in breakout for c200)
• Switch
• Tan
• Vehicle spd sens sig
• Vehicle speed sig
• Z101
• Z102
• Z231

ANTI-THEFT

Anti-theft Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Anti-theft Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (in breakout for rear wiper motor) s379
• (in trough, near breakout for left courtesy lamp) s210
• Ajar sw
• Automatic headlamp light sensor/vtss led
• Body control module (on left end of dash)
• Computer data lines system
• Cyl lck sw
• D25
• Data link connector (under left side of dash, near steering column)
• Door ajar sw
• Driver cylinder lock switch
• Driver door lock motor/ajar switch
• Driver door module (behind left front door panel)
• Fuse 10a
• Fuse 15a
• Fused b(+)
• Fused ign
• G108 (near power distribution center)
• G200 (near air bag control module)
• G300 (near right front seat)
• G301 (under driver seat)
• G69
• G73
• G74
• G75
• G76
• G77
• G78
• G80
• Ground
• Horn 1
• Horn 2
• Horn relay (in pdc)
• Horn rly ctrl
• Horns system (horn switch)
• Hot at all times
• Hot in acc or run
• Hot in run or start
• Junction block (behind left side of dash)
• L109
• L110
• Left liftgate ajar switch
• Left rear door lock motor/ajar switch
• Lf ajar sw
• Liftgate ajar
• Liftgate ajar sw
• Liftgate flip-up ajar switch
• Passenger door lock motor/ajar switch
• Passenger door module (behind right front door panel)
• Pci bus
• Pnk
• Power distribution center (right front corner of engine compartment, next to battery)
• Red
• Right liftgate ajar switch
• Right rear door lock motor/ajar switch
• S132
• S211
• S226
• S312 (near breakout for c200)
• S324 (in breakout for c200)
• S336
• S338
• S356
• S357
• S376
• Sentry key immoblizer module (near ignition lock cylinder housing)
• Tan/red
• Ultralight sen re
• Ultralight sen sig
• Vtss ind driver
• Vtss led
• Z132

BODY CONTROL MODULES

Body Control Modules Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Body Control Modules Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• A/c sw sig
• A/c system
• Accy delay rly
• Amb temp sens sig
• Anti-theft system
• Bcm flash enable
• Body control module
• C103
• C81
• Computer data lines system
• Coolant level sensor (in coolant reservoir/ overflow tank)
• Coolant lvl sw sns
• Ctsy lamp driver
• Ctsy lmp driver
• Ctsy lmp load
• Ctsy lp load shed
• D19
• D25
• Defogger rly ctrl
• Defogger system
• Door locks system
• E19
• Exterior lights system
• Fog lamp sw sns
• Fog lmp rly ctrl
• Fuse 10a
• Fused b(+)
• G108 (near power distribution center)
• G18
• G200 (near air bag control module)
• G26
• G31
• G32
• G52
• G69
• G73
• G76
• G77
• G78
• G80
• Ground
• Hazard sw sense
• Headlamp sw mux
• Headlamp sw rtn
• Headlights system
• Hi beam rly ctrl
• Hi beam sw sns
• Horn rly ctrl
• Horns system
• Hot at all times
• Hot in run & acc
• Hot in run & start
• Ignition (run-acc)
• Ignition (run-st)
• Interior lights system
• Junction block (behind left side of dash)
• Key-in ign sw sns
• L109
• L110
• L27
• L40
• L80
• L91
• Liftgate ajar sw
• Liftgate ctsy dis
• Liftgte flip-up sw
• Lo beam rly ctrl
• Lr dr ajar sw sns
• M20
• P132
• P133
• P134
• Panel lmps dim sig
• Panel lmps driver
• Park lmp rly ctrl
• Park lmp rly out
• Pass seat heater
• Pci bus
• Power tops system
• Radio ctrl mux
• Radio ctrl mux rtn
• Rear defog sw sns
• Red
• Rr dr ajar sw sns
• S132
• S205
• S211
• Seat heater sw
• Seat heater sw gnd
• Seats system
• Sensor ground
• Sound system
• Tan/red
• Ultralight sens rtn
• Ultralight sens sig
• V10
• V11
• V14
• V16
• V48
• V52
• V55
• Vtss ind driver
• Warning system
• Washer pump sw
• Washer sw sense
• Wiper high ctrl
• Wiper on/off rly
• Wiper park sw
• Wiper rly ctrl
• Wiper sw mux
• Wiper sw rtn
• Wiper/washer system
• X10
• X20
• Z132
• Z234

COMPUTER DATA LINES

Computer Data Lines Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Computer Data Lines Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (in trough, near breakout for left courtesy lamp) s210
• Adjustable pedals module (except base)
• Air bag control module (below center floor console, near park brake)
• Automatic zone control module
• Body control module (on left end of dash, attached to junction block)
• Compact disc changer (premium)
• Controller anti-lock brake (on left side of engine compt, mounted to hydraulic control unit)
• D19
• D20
• D21
• D25
• D32
• Data link connector (dlc) (under left side of dash, near steering column)
• Driver door module (behind left front door panel)
• Flash enable
• Fuse 10a
• G103 (right side of engine)
• Hot at all times
• Instrument cluster
• Junction block (behind left side of dash)
• Passenger door module (behind right front door panel)
• Pci bus
• Pnk
• Pnk/red
• Power amplifier (premium) (under passenger side rear seat cushion)
• Powertrain control module (on right side of firewall)
• Radio
• Rain sensor (w/ autowipe)
• S125 (4.7l) (near breakout for powertrain control module)
• S130 (4.7l) (in breakout for c102)
• S223 (near breakout for adjustable pedal switch)
• S226
• S312 (near breakout for c200)
• S324 (in breakout for c200)
• S335 (except base) (near breakout for c314)
• Sci receive
• Sci transmit
• Seat module (except base)
• Sentry key immobilizer module (near ignition lock cylinder housing)
• Transmission control module (4.7l) (on right inner fender)
• Vehicle information center

COOLING FAN

Cooling Fan Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Cooling Fan Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (4.0l)
• (4.7l) module
• (4.7l: near breakout for coil on plug 6) (4.0l: near breakout for c102,c103 & c104) s112
• (behind radiator) radiator fan motor
• (right front of engine compartment)
• 4.0l
• 4.7l
• Ect sens sig in
• Ect sens sig out
• Engine coolant
• Engine coolant temperature sensor (4.0l: top front of engine, on thermostat housing) (4.7l: near front of intake manifold)
• F142
• Fuse 15a (4.7l)
• Fuse 40a
• Fused (b+)
• Fused relay out
• G108 (near power distribution center)
• Ground
• Hot at all times
• Hot w/automatic shut down relay energized
• Hydraulic cooling
• K173
• Motor relay control
• Power distribution center (at right front corner of engine compartment, next to battery)
• Powertrain control module (on right side of firewall)
• Radiator fan
• Radiator fan motor relay (below right headlight)
• Radiator fan motor relay control
• Radiator fan motor relay out
• S132
• Sensor ground
• Signal
• Temp sensor
• Z500

CRUISE CONTROL

Cruise Control Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Cruise Control Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (in breakout for c200)
• (in center spline, near breakout for g301)
• (near breakout for c314)
• (near breakout for cruise switch 1)
• Base
• Brake lamp switch (top of brake pedal)
• Brake sw
• Brake switch signal
• Cancel
• Clock- spring
• Coast
• Cruise control lamp control
• Cruise indicator
• D25
• Dump
• Electronic speed control servo (below battery tray)
• Except base
• Exterior lights system
• Fuse 10a
• Fuse 15a
• Fused ign
• G108 (near pdc)
• G300 (near right front seat)
• Hot at all times
• Hot in run or start
• Instrument cluster
• Junction block (behind left side of dash)
• K29
• On/off
• Pci bus
• Powertrain control module (on right side of firewall)
• Resume/ accel
• S132
• S213
• S214
• S226
• S314
• S315
• S324
• S329
• Sensor gnd
• Set
• Shifter assembly
• Speed control switch 1
• Speed control switch 2
• Speed sw sig
• Tan/red
• V32
• V35
• V36
• V37
• Vacuum
• Vacuum sol
• Vent
• Vent sol

DEFOGGERS

Defoggers Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Defoggers Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (near rear window defogger ground connector)
• 12v
• 87a
• Automatic zone control module
• Azc
• Body control module
• C117
• C118
• D25
• Defog relay output
• Defog sw sens
• Defog sw sense
• Defogger relay ctrl
• Defogger sw sense
• Driver door module (behind left front door panel)
• Driver power mirror
• Fuse 10a
• Fuse 40a
• G301 (under driver seat)
• Ground
• Hot at all times
• Junction block (behind left side of dash)
• Manual temperature control
• Mirror heater
• Mtc
• Passenger door module (behind right front door panel)
• Passenger power mirror
• Pci bus
• Power distribution center (right front corner of engine compt, next to battery)
• Rear window defogger
• Rear window defogger relay
• Red/ tan
• Red/tan
• S210 (in trough, near breakout for left courtesy lamp)
• S226
• S312 (near breakout for c200)
• S324 (in breakout for c200)
• S374
• S375

ENGINE PERFORMANCE

4.0L

4.0L, Engine Performance Wiring Diagram (1 of 3) for Jeep Grand Cherokee Laredo 2003

List of elements for 4.0L, Engine Performance Wiring Diagram (1 of 3) for Jeep Grand Cherokee Laredo 2003:

• (in pdc) transmission control relay
• (left rear of transmission) output speed sensor
• (on transmission valve body) transmission solenoid
• (right side of engine)
• +5v
• 3-4 shift sol
• A/c pres sig
• A/c system
• B22
• C18
• Ckp sens
• Cmp sens
• Coil drv 1
• Coil drv 2
• Coil drv 3
• Coil rail (right rear of engine)
• Cooling fan system
• Ect sens
• Engine oil pressure sensor (on right rear side of eng block)
• F991
• Fan rly ctrl
• Fuel injectors
• Fuse 10a
• Fuse 15a
• Fuse 30a
• Fused b+
• G103
• G60
• Gen field drv
• Generator
• Gov pres sens
• Gov pres sig
• Gov pres sol
• Ground
• Hot at all times
• Iac 1 drv
• Iac 2 drv
• Iac 3 drv
• Iac 4 drv
• Iat sens
• Ign sw out
• Inj 1 drv
• Inj 2 drv
• Inj 3 drv
• Inj 4 drv
• Inj 5 drv
• Inj 6 drv
• Instrument cluster, anti-lock brakes & transmission control systems (vehicle speed signal)
• K11
• K12
• K13
• K14
• K141
• K173
• K20
• K21
• K22
• K24
• K241
• K30
• K341
• K38
• K39
• K40
• K41
• K44
• K58
• K59
• K60
• K77
• K88
• K91
• K92
• K93
• Map sens
• Nca
• O2 sens 1/1
• O2 sens 1/2
• O2 sens 2/1
• O2 sens 2/2
• Oil pres sens
• Out spd sens
• P/n switch
• Park/neutral position switch (lower left side of transmission)
• Pnk
• Power distribution center (at right front corner of eng compt, next to battery)
• Powertrain control module (on right side of firewall)
• Red
• S102 (near breakout for g103)
• S109 (eng harn, near breakout for fuel inj 2)
• S122 (near breakout for g103)
• S126 (near breakout for battery temp sensor)
• Sens ground
• Sensor ground
• Solenoid ctrl
• Spd sens gnd
• Starting system
• T13
• T14
• T20
• T25
• T41
• T54
• T60
• Tan
• Tan/pnk
• Tan/red
• Tcc sol
• Tcc sol ctrl
• Temp sig
• To spark plugs
• Tp sens
• Tr case pos
• Trans ctl rly
• Trans temp
• Transmissions system
• Vss signal
• Z81
• Z82

4.0L, Engine Performance Wiring Diagram (2 of 3) for Jeep Grand Cherokee Laredo 2003

List of elements for 4.0L, Engine Performance Wiring Diagram (2 of 3) for Jeep Grand Cherokee Laredo 2003:

• (in center spline, near breakout for g301)
• (in trough near breakout for pcm)
• (near breakout at right rear of eng compt)
• (near breakout for fuel inj 5)
• (near breakout for g103) s123
• (near breakout for g104) s105
• (on throttle body) idle air control motor
• (under driver's seat) g301
• A/c system
• Automatic shut down relay
• Camshaft position sensor (on right side of eng, near oil filter)
• Capacitor
• Cooling fans system
• Crankshaft position sensor (at left rear side of eng block, on transmission bellhousing)
• Cruise control system
• Engine coolant temperature sensor (at top front of eng, on thermostat housing)
• Fuel pump module (top of fuel tank)
• Fuel pump relay
• Fuse 10a
• Fuse 15a
• Fuse 20a
• Fuse 30a
• Hot at all times
• Hot in run or start
• Intake air temperature sensor (in intake manifold plenum, near front of throttle body)
• Junction block (behind left side of dash)
• Manifold absolute pressure sensor (on side of throttle body)
• Nca
• No 1 drv
• No 2 drv
• No 3 drv
• No 4 drv
• Power distribution center (at right front corner of eng compt, next to battery)
• S107
• S112
• S128
• S131 (in trough near breakout for pdc)
• S315
• Throttle position sensor (on throttle body)

4.0L, Engine Performance Wiring Diagram (3 of 3) for Jeep Grand Cherokee Laredo 2003

List of elements for 4.0L, Engine Performance Wiring Diagram (3 of 3) for Jeep Grand Cherokee Laredo 2003:

• (bottom of steering column) diagnostic junction port
• (in breakout for oxygen sensors)
• (near breakout for oxygen sensors)
• (on left fender side shield, forward of evap canister)
• (right rear of engine) g104
• (under left side of dash, near steering column)
• 1/1 2/1 o2 rly
• 1/1 o2 rly
• 2/1 o2 sens
• A/c system
• Asd relay ctrl
• Asd rly out
• Bat tem sens sig
• Battery temperature sensor (in center of battery tray)
• Brake sw sig
• C13
• Check engine ind
• Comp cl ctrl
• Cruise control system
• D21
• D25
• D32
• Data link connector
• Duty cycle evap/purge solenoid
• Evap emis
• F42
• Fuel lev sensor
• Fuel pmp rly
• Fuse 10a
• Gen source
• Hot in run or start
• Instrument cluster
• Junction block (behind left side of dash)
• K106
• K107
• K125
• K226
• K25
• K29
• K299
• K31
• K51
• K512
• K52
• K99
• Leak det pmp
• Leak det pump
• Leak detection pump (in left rear quarter panel)
• Nca
• Od off sw
• Oxygen sensor 1/1 (upstream) (before front catalytic converter)
• Oxygen sensor 1/2 (downstream) (after front catalytic converter)
• Oxygen sensor 2/1 (upstream) (before rear catalytic converter)
• Oxygen sensor 2/2 (downstream) (after rear catalytic converter)
• Oxygen sensor downstream relay
• Pci bus
• Pnk
• Power distribution center (at right front corner of eng compt, next to battery)
• Powertrain control module (on right side of firewall)
• S104
• S106
• S110
• S111
• S130 (in breakout at right rear of engine compt)
• Sci receive
• Sci transmit
• Shift interlock system
• Shifter assembly
• Spd ctrl pow
• Spd ctrl sw
• Tan/red
• V32
• V35
• V36
• V37
• Vac sol ctrl
• Vent sol ctrl

4.7L

4.7L, Engine Performance Wiring Diagram (1 of 3) for Jeep Grand Cherokee Laredo 2003

List of elements for 4.7L, Engine Performance Wiring Diagram (1 of 3) for Jeep Grand Cherokee Laredo 2003:

• (at right side of engine)
• (behind right side of radiator support)
• (near breakout for coil on plug 4)
• (near breakout for coil on plug 6)
• (near breakout for for capacitor)
• (near breakout for idle air control motor)
• +5v
• A/c pres sig
• A/c pressure transducer
• B22
• C18
• Capacitor
• Ckp sens
• Cmp sens
• Coil drv 1
• Coil drv 2
• Coil drv 3
• Coil drv 4
• Coil drv 5
• Coil drv 6
• Coil drv 7
• Coil drv 8
• Coil on plug 1
• Coil on plug 2
• Coil on plug 3
• Coil on plug 4
• Coil on plug 5
• Coil on plug 6
• Coil on plug 7
• Coil on plug 8
• Cooling fans system
• Ect sens
• Engine oil pressure sensor (on lower left front of eng block, above oil filter)
• F991
• Fan rly ctrl
• Fuel injectors
• Fuse 10a
• Fused b+
• G103
• G60
• Gen field drv
• Generator
• Ground
• Hot at all times
• Iac 1 drv
• Iac 2 drv
• Iac 3 drv
• Iac 4 drv
• Iat sens
• Ign sw out
• Inj 1 drv
• Inj 2 drv
• Inj 3 drv
• Inj 4 drv
• Inj 5 drv
• Inj 6 drv
• Inj 7 drv
• Inj 8 drv
• K11
• K12
• K13
• K14
• K141
• K173
• K20
• K21
• K22
• K24
• K241
• K26
• K28
• K341
• K38
• K39
• K40
• K41
• K44
• K58
• K59
• K60
• K77
• K91
• K92
• K93
• K94
• K95
• K96
• K97
• K98
• Map sens
• Nca
• O2 sens 1/1
• O2 sens 1/2
• O2 sens 2/1
• O2 sens 2/2
• Oil pres sens
• P/n switch
• Power distribution center (at right front corner of eng compt, next to battery)
• Powertrain control module (on right side of firewall)
• S109
• S118
• S121
• S124
• Sens ground
• T41
• Tan
• Tan/pnk
• Tan/red
• Tp sens
• Tr case pos
• Transmissions system
• Transmissions, anti-lock brakes & instrument cluster systems (vehicle speed signal)
• Vss signal
• Z81
• Z82

4.7L, Engine Performance Wiring Diagram (2 of 3) for Jeep Grand Cherokee Laredo 2003

List of elements for 4.7L, Engine Performance Wiring Diagram (2 of 3) for Jeep Grand Cherokee Laredo 2003:

• (in breakout for crank- shaft position sensor) s119
• (in center spline, near breakout for g301) s315
• (in intake manifold plenum, near left side of throttle body)
• (in trough near breakout for pcm)
• (near breakout at right rear of eng compt)
• (near breakout for fuel inj 7) s107
• (near breakout for input speed sensor)
• (near breakout for pcm) s120
• (on throttle body) idle air control motor
• (under driver's seat) g301
• Automatic shut down relay
• Camshaft position sensor (on front top of right cylinder head)
• Cooling fans system
• Crankshaft position sensor (on right side of eng block, above starter motor)
• Cruise control system
• Engine coolant temperature sensor (near front of intake manifold)
• Fuel pump module (top of fuel tank)
• Fuel pump relay
• Fuse 10a
• Fuse 15a
• Fuse 20a
• Fuse 30a
• Hot at all times
• Hot in run or start
• Intake air temperature sensor
• Junction block (behind left side of dash)
• Manifold absolute position sensor (front of intake manifold)
• No 1 drv
• No 2 drv
• No 3 drv
• No 4 drv
• Power distribution center (at right front corner of eng compt, next to battery)
• S105
• S116
• S122
• S128
• Starting system
• Throttle position sensor (on throttle body)
• Transmission control system
• Transmission solenoid/trs assembly (on transmission valve body)

4.7L, Engine Performance Wiring Diagram (3 of 3) for Jeep Grand Cherokee Laredo 2003

List of elements for 4.7L, Engine Performance Wiring Diagram (3 of 3) for Jeep Grand Cherokee Laredo 2003:

• (bottom of steering column) diagnostic junction port
• (in breakout for oxygen sensors)
• (left side of engine) g104
• (near breakout at right rear of eng compt)
• (near breakout for coil on plug 8) s112
• (on left fender side shield, forward of evap canister)
• 1/1 2/1 o2 rly
• 1/1 o2 ctrl
• 2/1 o2 ctrl
• A/c system
• Asd relay ctrl
• Asd rly out
• Bat tem sens sig
• Battery temperature sensor (in center of battery tray)
• Brake sw sig
• C13
• Check engine ind
• Ckp sens sig
• Comp cl ctrl
• Cruise control system
• D21
• D25
• D32
• Data link connector (under left
• Duty cycle evap/purge solenoid
• Evap emis
• F42
• Fuel lev sensor
• Fuel pmp rly
• Fuse 10a
• Gen source
• Hot in run or start
• Instrument cluster
• Junction block (behind left side of dash)
• K106
• K107
• K125
• K142
• K22
• K226
• K24
• K25
• K29
• K299
• K31
• K42
• K51
• K512
• K52
• K99
• Knock sens
• Knock sens 2
• Knock sensor (high output)
• Leak det pmp
• Leak det pump
• Leak detection pump (below air cleaner housing)
• Nca
• Oxygen sensor 1/1 (upstream) (before left catalytic converter)
• Oxygen sensor 1/2 (downstream) (after left catalytic converter)
• Oxygen sensor 2/1 (upstream) (before right catalytic converter)
• Oxygen sensor 2/2 (downstream) (after right catalytic converter)
• Oxygen sensor downstream relay
• Pci bus
• Pnk
• Power distribution center (at right front corner of eng compt, next to battery)
• Powertrain control module (on right side of firewall)
• S104
• S106
• S111
• S125 (near breakout for pcm)
• S126
• S130 (in breakout at right rear of eng compt)
• S131 (in trough near breakout for pdc)
• S160
• S316
• Sci receive
• Sci transmit
• Sensor ground
• Shift interlock system
• Side of dash, near steering column)
• Spd ctrl pow
• Spd ctrl sw
• T10
• Tan/red
• Torque man req
• Torque req
• Tp sens sig
• Transmission control module (on right inner fender)
• V32
• V35
• V36
• V37
• Vac sol ctrl
• Vent sol ctrl
• W/ high output
• W/o high output

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Back-up Lamps Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (between breakout for c310 & left rear lamp assembly) s310
• 4.0l
• 4.7l
• Adjustable pedals module
• Automatic day/night mirror
• Back- up lamp
• Back-up lamp feed
• Fuse 20 10a
• G300 (near right front seat)
• G301 (under driver seat)
• Hot in run
• Junction block (behind left side of dash)
• Left rear lamp assembly
• Park/neutral position switch (on lower left side of transmission)
• Right rear lamp assembly
• S307
• S328 (in sill trough, near breakout to ground g300)
• S332
• Trailer tow connector
• Transmission solenoid/trs assembly (on transmission valve body)

Exterior Lamps Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Exterior Lamps Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (between breakout for c310 & left rear lamp assembly) s309
• (in headlamp assembly) s154
• (in headlight assembly) s153
• (in headlight assembly) s155
• (in headlight assembly) s156
• (left side of engine compt) g106
• (near breakout for license lamp 1) s380
• (under driver seat) g301
• 87a
• B(+)
• Body control module
• Brake lamp switch
• Center high mounted stop lamp
• Combination flasher
• Controller antilock brake (on left side engine compt, mounted to hydraulic control unit)
• Fuse 10a
• Fuse 15a
• Fused
• Fused ignition switch output
• G108 (near power distribution center)
• G200 (near air bag control module)
• G300 (near right front seat)
• G301 (under driver seat)
• Hazard
• Hazard switch sense
• Hot at all times
• Hot in run
• Instrument cluster
• Junction block (behind left side of dash)
• Left front park lamp
• Left front park/ turn signal lamp
• Left front side marker lamp
• Left multi- function switch
• Left rear lamp assembly
• Left turn
• Left turn indi- cator
• Left turn signal
• Left turn switch sense
• License lamp 1
• License lamp 2
• Park lamp relay
• Park lamp relay control
• Park lamp relay output
• Pnk
• Pnk/
• Primary brake switch signal
• Red
• Right front park lamp
• Right front park/ turn signal lamp
• Right front side marker lamp
• Right rear lamp assembly
• Right rear tail/ stop lamp
• Right turn
• Right turn indi- cator
• Right turn signal
• Right turn switch sense
• S151
• S152
• S203
• S205
• S306 (near breakout for c310)
• S307
• S311 (near breakout for left rear lamp assembly)
• S313 (near breakout to g301)
• S326 (near breakout for c200)
• S327 (near breakout for c307)
• S332
• S375
• S381
• Tail/ stop lamp
• Tan
• Tan/
• Trailer tow circuit
• Turn signal lamp

Trailer Tow Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Trailer Tow Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (near breakout to g301) s313
• (not used)
• 15a
• 87a
• Back-up lamps circuit
• Body control module
• Brake lamp switch
• Cigar lighter relay
• Combination flasher
• Controller antilock brake (on left side engine compartment, mounted to hydraulic control unit)
• Exterior lamps circuit
• Fuse 15a
• Fuse 30a
• G200 (near air bag control module)
• G301 (under driver seat)
• Hot at all times
• Junction block (behind left side of dash)
• L62
• L63
• Left turn signal
• Park lamp relay
• Park lamp relay control
• Primary brake switch signal
• Red/tan
• Right turn signal
• S205
• S306 (near breakout for c310)
• S307
• S309 (between breakout for c310 & left rear lamp assembly)
• S311 (near breakout for left rear lamp assembly)
• S327 (near breakout for c307)
• S371 (in trailer tow harness jumper)
• S372
• Trailer tow circuit breaker (left rear quarter panel)
• Trailer tow connector
• Trailer tow left turn relay (left rear quarter panel)
• Trailer tow right turn relay (left rear quarter panel)

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 4) for Jeep Grand Cherokee Laredo 2003

List of elements for Ground Distribution Wiring Diagram (1 of 4) for Jeep Grand Cherokee Laredo 2003:

• (4.0l)
• (4.7l)
• (4.7l) transmission control relay
• (at right front corner of engine compartment next to battery)
• A/c compressor clutch
• Battery
• Controller anti-lock brake
• Coolant level sensor
• Data link connector (dlc)
• Electronic speed control servo
• Front washer pump
• Front wiper motor
• G100 (near starter) (near intake plenum)
• G101 (near battery)
• G102 (at right side of engine)
• G103 (at right side of engine)
• G104 (at right rear of engine) (at left side of engine)
• G106 (at left side of engine compartment)
• G107 (at left side of engine compartment)
• G108 (near power distribution center)
• Horn
• Hydraulic cooling module (4.7l)
• Left fog lamp
• Left front park lamp
• Left front park/turn signal lamp
• Left high beam headlamp
• Left low beam headlamp
• Left side repeater lamp
• Line pressure sensor
• Nca
• Oxygen sensor 1/2 (downstream)
• Oxygen sensor 2/2 (downstream)
• Power distribution center
• Powertrain control module
• Radiator fan motor (4.0l)
• Radiator fan motor relay
• Rear washer pump
• Right fog lamp
• Right front park lamp
• Right front park/turn signal lamp
• Right high beam headlamp
• Right low beam headlamp
• S104 (4.0l) (near breakout for a/c compressor) (4.7l) (near breakout for oxygen sensor 2/2 downstream)
• S114 (near breakout for transmission control module)
• S133 (near breakout for battery temperature sensor)
• S134 (in trough, near breakout for anti-lock brake controller)
• S151 (in headlight assembly)
• S152 (in headlight assembly)
• Transmission control module
• Washer fluid level switch

Ground Distribution Wiring Diagram (2 of 4) for Jeep Grand Cherokee Laredo 2003

List of elements for Ground Distribution Wiring Diagram (2 of 4) for Jeep Grand Cherokee Laredo 2003:

• (midline/premium) driver lumbar switch
• (premium) seat module
• 12 c2
• Adjustable pedals module
• Automatic day/night
• Base
• Center high mounted stop lamp
• Driver power seat switch
• Driver rear power window switch
• Except base
• Except heated seat
• Fuel pump module
• G301 (under driver seat)
• Heated seat
• Left liftgate ajar switch
• Left rear door lock motor/ ajar switch
• Left rear lamp assembly
• License lamp no.1
• License lamp no.2
• Liftgate flip-up ajar switch
• Liftgate flip-up release solenoid
• Midline/premium 1
• Mirror
• Other
• Rain sensor
• Rear window defogger
• Rear wiper motor
• Right liftgate ajar switch
• S300 (near breakout for g304)
• S307 (near breakout for c310)
• S345 (near breakout for sun roof switch)
• S355 (near breakout for c304 & c306)
• S356 (in breakout for left rear door lock motor/ajar switch)
• S375 (near rear window defogger ground connector)
• S376 (near breakout for liftgate flip-up ajar switch)
• S381 (in breakout for c312)
• Sun roof
• Sun roof control module
• Sun roof motor
• Sun roof switch
• Trailer tow connector
• Vehicle vehicle information center center
• Z150
• Z155

Ground Distribution Wiring Diagram (3 of 4) for Jeep Grand Cherokee Laredo 2003

List of elements for Ground Distribution Wiring Diagram (3 of 4) for Jeep Grand Cherokee Laredo 2003:

• (except base) (base)
• Adjustable pedals module
• Air bag control module
• Base
• Brake lamp switch
• Driver cylinder lock switch
• Driver door lock motor/ ajar switch
• Driver door module
• Except base
• G201 (near air bag control module)
• G300 (near right front seat)
• Motor)
• Motor/ajar switch)
• Passenger door lock motor/ ajar switch
• Passenger door module
• Passenger lumbar switch
• Passenger power seat switch
• Passenger rear power window switch
• Power amplifier
• Premium
• Radio
• Rear power outlet
• Right rear door lock motor/ ajar switch
• Right rear lamp assembly
• S224 (at right center of dash)
• S329 (in sill trough, near breakout for g300)
• S330 (near breakout for g300)
• S331 (in sill trough, near breakout for c303)
• S332 (in sill trough, near breakout for c303)
• S341 (near breakout for c306)

Ground Distribution Wiring Diagram (4 of 4) for Jeep Grand Cherokee Laredo 2003

List of elements for Ground Distribution Wiring Diagram (4 of 4) for Jeep Grand Cherokee Laredo 2003:

• (mtc) temperature valve actuator
• (premium 1/3) driver heated seat switch
• (premium 1/3) passenger heated seat switch
• 14 c1
• 2 c1
• Ash receiver lamp
• Automatic zone control module
• Blower motor controller
• Body control module
• Cigar lighter
• Cigar lighter relay
• Front power outlet
• G200 (near air bag control module)
• Ignition switch
• Instrument cluster
• Junction block (behind left side of dash)
• Left multi- function switch
• Low beam/ daytime running lamp relay (drl)
• Manual temperature control
• Park lamp relay
• S201 (azc) (in trough, near breakout for front power outlet)
• S203 (in trough, near breakout for cigar lighter)
• S205 (near breakout for adjustable pedal switch)
• S211 (in trough, near breakout for left courtesy lamp)
• Sentry key immobilizer module
• Shifter assembly

HEADLIGHTS

Headlights Wiring Diagram, with DRL for Jeep Grand Cherokee Laredo 2003

List of elements for Headlights Wiring Diagram, with DRL for Jeep Grand Cherokee Laredo 2003:

• (fused b (+))
• (ground)
• (in headlamp assembly) s151
• (in trough, near breakout for controller anti-lock brake) s134
• (in trough, near breakout for left courtesy lamp) s210
• (left side of engine compartment) g106
• (low beam ctrl)
• (low beam out)
• (near air bag control module) g200
• (near breakout for adjustable pedal switch) s205
• (near breakout for battery temperature sensor) s133
• (near power distribution center) g108
• Auto
• Automatic headlamp light sensor/ vtss led
• Body control module (on left end of dash, attached to junction block)
• D25
• Flash
• Fog
• Fog lamp indicator
• Fog lamp relay
• Fog lamp relay control
• Fog lamp sw sense
• Fuse 10a
• Fuse 15a
• Fuse 50a
• G52
• Head
• Headlamp sw mux
• Headlamp sw return
• High
• High beam indicator
• High beam relay
• High beam relay control
• High beam sw sense
• Hot at all times
• Instrument cluster
• Junction block (behind left side of dash)
• L109
• L110
• L27
• L40
• L80
• Left fog lamp
• Left high beam headlamp
• Left low beam headlamp
• Left multi-function switch
• Low beam relay control
• Low beam/daytime running lamp relay
• Off
• Park
• Pci bus
• Power distribution center (right front corner of engine compartment, next to battery)
• Red
• Right fog lamp
• Right high beam headlamp
• Right low beam headlamp
• S226
• Sensor return
• Sensor signal

Headlights Wiring Diagram, without DRL for Jeep Grand Cherokee Laredo 2003

List of elements for Headlights Wiring Diagram, without DRL for Jeep Grand Cherokee Laredo 2003:

• (fused b (+))
• (ground)
• (in headlamp assembly) s151
• (in trough, near breakout for controller anti-lock brake) s134
• (in trough, near breakout for left courtesy lamp) s210
• (left side of engine compartment) g106
• (low beam ctrl)
• (low beam out)
• (near air bag control module) g200
• (near breakout for adjustable pedal switch) s205
• (near breakout for battery temperature sensor) s133
• (near power distribution center) g108
• Auto
• Automatic headlamp light sensor/ vtss led
• Body control module (on left end of dash, attached to junction block)
• D25
• Flash
• Fog
• Fog lamp indicator
• Fog lamp relay
• Fog lamp relay control
• Fog lamp sw sense
• Fuse 10a
• Fuse 15a
• Fuse 50a
• G52
• Head
• Headlamp sw mux
• Headlamp sw return
• High
• High beam indicator
• High beam relay
• High beam relay control
• High beam sw sense
• Hot at all times
• Instrument cluster
• Junction block (behind left side of dash)
• L109
• L110
• L27
• L40
• L80
• Left fog lamp
• Left high beam headlamp
• Left low beam headlamp
• Left multi-function switch
• Low beam relay control
• Low beam/daytime running lamp relay
• Off
• Park
• Pci bus
• Power distribution center (right front corner of engine compartment, next to battery)
• Red
• Right fog lamp
• Right high beam headlamp
• Right low beam headlamp
• S226
• Sensor return
• Sensor signal

HORN

Horn Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Horn Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• Body control module
• Clockspring
• Fuse 18 15a
• G108 (near pdc)
• Horn 1
• Horn 2
• Horn relay (in pdc)
• Horn relay ctrl
• Horn switch
• Hot at all times
• Junction block (behind left side of dash)
• Power distribution center (right front corner of engine compt, next to battery)
• Red
• S132

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Instrument Cluster Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (4.7l:near breakout for fuel injector 7)
• (in breakout for c102) s130
• (near breakout for ad- justable pedal switch s223
• 4.7l
• Abs warning
• Air bag control module (below center floor console, near park brake)
• Air bag warning
• Body control module
• Brake warn
• Brake warning
• Check engine
• Check gauges
• Computer data lines system
• Controller anti-lock brake (left side of engine compt, mounted to hydraulic control unit)
• Coolant level sense
• Coolant level sensor (in coolant reservoir/ overflow tank)
• Cruise
• D19
• D25
• Data link connector (near steering column)
• Ect
• Engine controls system
• Engine coolant temperature gauge
• Engine coolant temperature sensor (4.0l: top front of engine, on thermostat housing) (4.7l: near front of intake manifold)
• Engine oil pressure sw sig
• Engine oil pressure switch
• Exterior lights system
• F33
• Flash enable
• Fog lamp
• For c200)
• Fuel gauge
• Fuel lvl
• Fuel pump module (top of fuel tank)
• Fuse 10a
• Fused (b+)
• G108 (near power distribution center)
• G18
• G200 (near air bag control module)
• G60
• Ground
• High beam
• Hot at all times
• Hot in run or start
• Illumination
• Illumination (5 bulbs)
• Instrument cluster
• Junction block (behind left side of dash)
• K226
• L60
• L61
• Left turn
• Low collant level
• Low fuel warning
• Oil pressure gauge
• Overdrive
• Park brake switch
• Part time 4wd
• Pci bus
• Pnk/red
• Powertrain control module (right side of firewall)
• Radio
• Rear fog lamp
• Right turn
• S107 (4.0l:near breakout for fuel injector 5)
• S132
• S203
• S210 (in trough, near breakout for left courtesy lamp)
• S211
• S226
• S324 (in breakout for c200)
• Seat belt warning
• Sens gnd
• Sentry key immobilizer
• Sentry key immobilizer module (near ignition lock cylinder housing)
• Speedometer
• Tachometer
• Tan
• Transmission control module (on right inner fender)
• Transmission temperature
• Voltmeter
• Water in fuel
• Z300

Vehicle Information System Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Vehicle Information System Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• Computer data lines system
• D25
• Except premium power seats
• F70
• Fuse 10a
• Fuse 15a
• Fused b+
• Fused ign
• G301 (under driver seat)
• Ground
• Hot at all times
• Hot in run or start
• Junction block (behind left side of dash)
• Pci bus
• Pnk
• Premium power seats
• S301
• S346
• S349
• Vehicle information center
• Z155

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Courtesy Lamps Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (near breakout for liftgate lock motor) s378
• A146
• Ajar sns
• Ajar sw sns
• Body control module
• Breakout for radio connectors)
• Cargo lamp
• Courtesy lamp driver
• Courtesy lamp load shed
• Ctsy lamp driver
• Ctsy lamp load shed
• Driver door lock motor/ ajar switch
• Driver door module (behind left front door panel)
• Driver front door courtesy lamp
• Fuse 10a
• Fuse 15a
• Fuse 50a
• Fused b(+)
• Fused ign (run-acc)
• Fused ign (run-start)
• G200 (near air bag control module)
• G300 (near right front seat)
• G301 (under driver seat)
• G74
• G75
• Glove box lamp
• Gnd
• Ground
• Hot at all times
• Hot in run or acc
• Hot in run or start
• Junction block (behind left side of dash)
• L121
• Lamp drv
• Lamp gnd
• Left courtesy lamp
• Left door handle courtesy lamp
• Left liftgate ajar switch
• Left rear door lock motor/ ajar switch
• Left visor/ vanity lamp
• Liftgate courtesy disable
• Liftgate flip-up ajar switch
• M21
• Overhead map/ courtesy lamp
• Passenger door lock motor/ ajar switch
• Passenger door module (behind right front door panel)
• Passenger front door courtesy lamp
• Pnk
• Pnk pnk
• Power distribution center (right front corner of engine compt, next to battery)
• Right courtesy lamp
• Right door handle courtesy lamp
• Right liftgate ajar switch
• Right rear door lock motor/ ajar switch
• Right visor/ vanity lamp
• S205
• S207
• S211
• S330
• S336
• S338 (near breakout for passenger power window motor)
• S346
• S347 (near breakout for left visor/vanity lamp)
• S356
• S357
• S376
• S379 (in breakout for rear wiper motor)
• Tan/ g76
• Tan/ g77
• Tan/ g78
• Tan/ red
• Tan/red
• Wiper/ washer system
• Z28

Instrument Illumination Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Instrument Illumination Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (in trough, near breakout for passenger heated seat switch) s202
• Ash receiver lamp
• Automatic zone control module
• Azc
• Body control module
• Dimmer sig
• Dome on day brightness dimmer dome inhibit
• Driver heated seat switch
• Fuse 10a
• Fused b(+)
• Fused ign (run-acc)
• Fused ign (run-start)
• G200 (near air bag control module)
• Gnd
• Hd lmp sw rtn
• Hot at all times
• Hot in run or acc
• Hot in run or start
• Junction block (behind left side of dash)
• Left multi- function switch
• Manual temperature control
• Mtc
• Panel lamps driver
• Passenger heated seat switch
• Pnl lmps drv
• Radio
• Red
• Red e19
• S203
• S205
• S211
• Shifter assembly

MEMORY SYSTEMS

Memory Mirrors Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Memory Mirrors Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• A146
• Body control module (on left end of dash, attached to junction block)
• D25
• Data
• Driver door module
• Driver power mirror
• Fuse 50a
• Fused b(+)
• G300 (near right front seat)
• Ground
• Horizontal motor
• Horizontal position sensor
• Hot at all times
• Junction block (behind left side of dash)
• Link c0nnector (dlc) (under left side of dash, near steering column)
• Memory 1
• Memory 2
• Memory set
• Memory set ind driver
• Memory set switch
• Memory switch mux
• Memory switch rtn
• Mirror common driver
• Mirror horiz driver
• Mirror horiz pos sig
• Mirror sensor gnd
• Mirror vert driver
• Mirror vert pos sig
• P64
• P65
• P69
• P91
• P93
• P95
• Passenger door module
• Passenger power mirror
• Pci bus
• Power distribution center (right front corner of engine compartment, next to battery)
• Red
• S210 (in trough, near breakout for left courtesy lamp)
• S226
• S312 (near breakout for c200)
• S324 (in breakout for c200)
• S336
• S338
• Sw illum driver
• Vertical motor
• Vertical position sensor
• Z28

Memory Seat Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Memory Seat Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (near breakout for c314)
• (near breakout for seat belt switch)
• Circuit breaker 2 20a
• Computer data lines system
• D25
• Driver door module
• Driver power seat front riser motor
• Driver power seat front riser motor sensor
• Driver power seat horizontal motor
• Driver power seat horizontal motor sensor
• Driver power seat rear riser motor
• Driver power seat rear riser motor sensor
• Driver power seat recliner motor
• Driver power seat recliner motor sensor
• Driver power seat switch
• Drv seat htr (b+)
• Drv seat temp sens
• F35
• Frnt riser pos sig
• Fused (b+)
• Fwd
• G301 (under driver seat)
• Gnd
• Ground
• Hot at all times
• Junction block (behind left side of dash)
• Memory 1
• Memory 2
• Memory set
• Memory set ind drv
• Memory set switch
• Memory switch mux
• Memory switch rtn
• P11
• P111
• P113
• P115
• P117
• P119
• P121
• P13
• P130
• P131
• P135
• P141
• P143
• P15
• P17
• P19
• P21
• P25
• P26
• P27
• P28
• P29
• P41
• P43
• P47
• P86
• Pass seat htr (b+)
• Pass seat temp sens
• Pci bus
• Rear riser pos sig
• Recline
• Recliner dwn sw sns
• Recliner pos sig
• Recliner up sw sns
• Red
• Rwd
• S301
• S312 (near breakout for c200)
• S335
• S351
• S352
• S353
• S355
• Seat frnt
• Seat frnt dwn drv
• Seat frnt dwn sw sns
• Seat frnt up drv
• Seat frnt up sw sns
• Seat horiz
• Seat horiz fwd drv
• Seat horiz fwd sw sns
• Seat horiz pos sig
• Seat horiz rear drv
• Seat horiz rear sw sns
• Seat module (under front of driver's seat)
• Seat pos sensor gnd
• Seat rear
• Seat rear dwn drv
• Seat rear dwn sw sns
• Seat rear up drv
• Seat rear up sw sns
• Seat recliner dwn drv
• Seat recliner up drv
• Seat sensor 5v
• Seat switch (b+)
• Seats system
• Switch illum drv
• Z155
• Z243

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 3) for Jeep Grand Cherokee Laredo 2003

List of elements for Power Distribution Wiring Diagram (1 of 3) for Jeep Grand Cherokee Laredo 2003:

• (at right front corner of engine compartment, next to battery) power distribution center
• (behind left side of dash) junction block
• (near breakout for red
• (near right front seat) g300
• 4.7l
• A/c compressor clutch relay
• Accessory delay relay
• Auto a/c
• Automatic shutdown relay
• Base
• Base except heated seats
• Battery
• Blower motor
• Blower motor controller
• Brake lamp switch
• Circuit breaker 2 20a
• Combination flasher
• Controller anti-lock brake
• Data link connector
• Driver lumbar switch (except base)
• Driver lumbar switch) s353
• Driver power seat switch
• Engine starter motor
• Engine starter motor relay
• Except base
• F33
• F35 red
• From a fuse 15 (diagram 1 of 3)
• Fuel pump relay
• Fuse 10a
• Fuse 15a
• Fuse 20a
• Fuse 30a
• Fuse 40a
• Fuse 50a
• Generator
• Heated seats/ midline/premium
• High beam relay
• Horn relay
• Instrument cluster
• Low beam relay (w/o drl)
• Low beam/ daytime running lamp relay (w/drl)
• Manual a/c
• Nca
• Park lamp relay
• Passenger lumbar switch
• Passenger power seat
• Passenger power seat switch
• Pnk/ red
• Power distribution center (at right front corner of engine compartment, next to battery)
• Power- train control module
• Rear fog lamp relay
• Rear power outlet (right rear quarter panel)
• Red
• Red f35
• Red/ tan
• S127 (in trough, near breakout for powertrain control module)
• S332
• S342
• Seat module
• To cigar lighter relay (j/b) (diagram 2 of 3)
• To fuse 18 (j/b) (diagram 3 of 3)
• To fuse 2 (diagram 1 of 3)
• To fuse 8 (j/b) (diagram 2 of 3)
• To ignition switch (diagram 2 of 3)
• Transmission control module
• Transmission control relay

Power Distribution Wiring Diagram (2 of 3) for Jeep Grand Cherokee Laredo 2003

List of elements for Power Distribution Wiring Diagram (2 of 3) for Jeep Grand Cherokee Laredo 2003:

• (behind left side of dash) junction block
• (diagram 1 of 3)
• (in sill trough, near breakout for c307) s304
• (near airbag control module) g200
• (near breakout for c102, c103 & c104) s116 (4.7l)
• (near breakout for junction block) s316
• 4.7l
• A/c compressor clutch relay
• Acc
• Air bag control module
• Automatic day/night mirror
• Automatic shutdown relay
• Body control module
• Cargo lamp
• Cigar lighter
• Cigar lighter relay
• Circuit breaker 1 20a
• Evap/purge solenoid
• From fuse 14 (pdc)
• From fuse 15 (pdc) (diagram 1 of 3)
• From fuse 2 (pdc) (diagram 1 of 3)
• From fuse 8 (pdc) (diagram 1 of 3)
• Front wiper motor
• Fuel pump relay
• Fuse 10a
• Fuse 15a
• G200 (air bag control module)
• Glove box lamp
• Ignition switch
• Instrument cluster
• Junction block (behind left side of dash)
• Left courtesy lamp
• Left door handle courtesy lamp
• Left visor/ vanity lamp
• Liftgate flip-up push button switch
• Lock
• Overhead map/ courtesy lamp
• Pnk
• Pnk/ (in trough, near breakout for radio connectors) s207
• Power distribution center (at right front corner of engine compartment, next to battery)
• Powertrain control module
• Radio
• Rear window defogger relay
• Rear wiper motor
• Rear wiper motor)
• Red
• Red/ tan
• Right courtesy lamp
• Right door handle courtesy lamp
• Right multi- function switch
• Right visor/ vanity lamp
• Run off
• S203
• S205
• S346 (near breakout for pnk left visor/vanity lamp)
• S377 (near breakout for pnk
• Sentry key immobilizer module
• Shifter assembly
• Start
• To fuse 19 (j/b) (diagram 3 of 3)
• To fuse 31 (j/b) (diagram 3 of 3)
• To fuse 5 (diagram 3 of 3)
• Trailer tow circuit breaker
• Transmission control module
• Vehicle information center
• Wiper high/low relay
• Wiper on/off relay

Power Distribution Wiring Diagram (3 of 3) for Jeep Grand Cherokee Laredo 2003

List of elements for Power Distribution Wiring Diagram (3 of 3) for Jeep Grand Cherokee Laredo 2003:

• (all right center of dash) s221
• (behind left side of dash) junction block
• (in breakout for power amplifier) s334
• (in trough, near breakout for power connector) s204
• (near airbag control module) g200
• (not used)
• 4.0l
• 4.7l
• Adjustable pedals module
• Air bag control module
• Auto a/c
• Automatic headlamp light sensor/ vtss led
• Automatic zone control module
• Body control module
• Combination flasher
• Controller anti-lock brake
• Driver door module
• Driver heated seat switch
• Engine starter motor relay
• From fuse 12 (pdc) (diagram 1 of 3)
• From ignition switch (diagram 2 of 3)
• From j fuse 8 (diagram 2 of 3)
• Front power outlet (center of dash)
• Fuse 10a
• Fuse 20a
• Fuse 25a
• Fuse 30a
• Junction block (behind left side of dash)
• Manual a/c
• Manual temperature control
• Park/ neutral position switch
• Passenger door module
• Passenger heated seat switch
• Pnk
• Power amplifier
• Power distribution center (at right front corner of engine compartment, next to battery)
• Premium 1 & 3
• Radio
• S203
• Sentry key immobilizer module
• Temperature valve actuator
• Trailer tow left turn relay
• Trailer tow right turn relay
• Transmission control module (4.7l)
• Transmission solenoid/ trs assembly

POWER DOOR LOCKS

Power Door Locks Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Power Door Locks Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (between troughs, near breakout for c314)
• (in breakout for c200) s324
• (in breakout for passenger door module)
• (in sill trough, near breakout for c307)
• (in trough near breakout for left courtesy lamp) s210
• (near breakout for c200)
• (near breakout for passenger power window motor)
• (near ignition lock cylinder housing)
• A146
• Body control module (on left end of dash, attached to junction block)
• Computer data lines system
• D25
• Door lock
• Door unlock driver
• Dr unlock
• Driver cylinder lock switch
• Driver door lock
• Driver door lock motor/ ajar switch
• Driver door module
• Flip-up ajar
• Fuse 15a
• Fuse 50a
• Fused b+
• G300 (near right front seat)
• G301 (under driver seat)
• G73
• G74
• G75
• G76
• G77
• G78
• G80
• Ground
• Hot at all times
• Junction block (behind left side of dash)
• Left liftgate ajar switch
• Left rear door lock motor/ ajar switch
• Lf door ajar sw
• Lf key cyl sw sense
• Liftgate ajar
• Liftgate flip-up ajar switch
• Liftgate flip-up push button switch
• Liftgate flip-up release solenoid (in liftgate)
• Liftgate power lock motor
• Limit switch
• Lr door ajar
• P34
• P35
• P36
• Passenger door lock motor/ ajar switch
• Passenger door module
• Pci bus
• Pnk
• Power distribution center (at right front corner of engine compartment, next to battery)
• Rear wiper motor (on liftgate inner panel)
• Rf ajar sw
• Right liftgate ajar switch
• Right rear door lock motor/ ajar switch
• Rr door ajar
• S226
• S302
• S303
• S312
• S317
• S318
• S336
• S338
• S338 s338
• S339
• S340
• S356
• S357
• S376
• S377
• S378 (near breakout for liftgate lock motor)
• S379 (in breakout for rear wiper motor)
• Sentry key immobilizer module
• Tan/ red
• Tan/red
• Z28

POWER MIRRORS

Power Mirrors Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Power Mirrors Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (on lower left side of transmission) park/ neutral position switch
• (on transmission valve body) transmission solenoid/trs assembly
• (under left side of dash, near steering column) data link connector (dlc)
• 4.0l
• 4.7l
• A146
• Auto day/ night mirror (+)
• Auto day/ night mirror (-)
• Automatic day/night mirror
• Backup lamp feed
• Body control module (on left end of dash, attached to junction block)
• D25
• Driver door module (behind left front door panel)
• Driver power mirror
• Exterior lights system
• For g300)
• Front seat)
• Fuse 22 10a
• Fuse 50a
• Fused b(+)
• Fused ignition (run-start)
• G300 (near right
• G300 (near right front seat)
• G301 (under driver seat)
• Gnd
• Ground
• Horiz motor
• Horiz position sensor
• Hot at all times
• Hot in run or start
• Junction block (behind left side of dash)
• Mirror common drv
• Mirror horiz drv
• Mirror horiz pos sig
• Mirror sensor gnd
• Mirror vert drv
• Mirror vert pos sig
• P64
• P65
• P69
• P91
• P93
• P95
• Passenger door module (behind right front door panel)
• Passenger power mirror
• Pci bus
• Power distribution center (right front corner of engine compartment, next to battery)
• Red
• S226
• S307
• S310 (between breakout for c310 & left rear lamp assembly)
• S312 (near breakout for c200)
• S324 (in breakout for c200)
• S336
• S338
• S345 (w/ sunroof)
• S349
• Vert mot0r
• Vert position sensor
• Z28

POWER SEATS

Adjustable Pedal Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Adjustable Pedal Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (near right front seat) g300
• Adjustable pedals module
• Adjustable pedals motor/sensor assembly
• Adjustable pedals switch
• Backup lamp
• Data link connector
• Exterior lights system d25
• F72
• Fuse 20a
• Fused b(+)
• Fwd
• G301 (under driver seat)
• Ground
• Hot at all times
• Junction block (behind left side of dash)
• Motor (fwd)
• Motor (rwd)
• Motor(fwd)
• Motor(rwd)
• Off
• Pci bus
• Pedal pos sens feed
• Pedal pos sens rtn
• Pedal pos sens sns
• Pos sens rtn
• Pos sens sns
• Pos sns feed
• Q110
• Q111
• Q112
• Q113
• Q114
• Rwd
• S301
• S312 (near breakout for c200)
• S332
• Sw sns(fwd)
• Sw sns(rwd)
• Switch feed
• Y151
• Y152
• Y153
• Z151
• Z155

Driver Seat Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Driver Seat Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• 1 rear up 2 rear down 3 forward 4 rearward 5 front up 6 front down 7 recliner up 8 recliner down
• Circuit breaker 2 20a
• Driver power seat front riser motor
• Driver power seat horizontal motor
• Driver power seat rear riser motor
• Driver power seat switch
• G301 (under driver seat)
• Heated seats
• Hot at all times
• Junction block (behind left side of dash)
• Red
• S300
• S353
• S355

Heated Seats Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Heated Seats Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (in trough, near breakout for passenger heated seat switch) s202
• (on left end of dash, attached to junction block)
• 0 off 1 low 2 high
• Body control module
• Computer data lines system
• D25
• Driver heated seat back
• Driver heated seat cushion
• Driver heated seat switch
• Driver seat heater b (+) driver
• Driver seat heater sw mux
• Driver seat temperature sensor input
• For seat belt switch)
• Fuse 20 10a
• G200 (near air bag control module)
• Ground
• Hot in run
• Junction block (behind left side of dash)
• P131
• P132
• P134
• P135
• P29
• Panel lamps driver
• Passenger heated seat back
• Passenger heated seat cushion
• Passenger heated seat switch
• Passenger seat heater b (+) driver
• Passenger seat heater switch mux
• Passenger seat temperature sensor input
• Pci bus
• Pi33
• S200 (in trough, near breakout for passenger heated seat switch)
• S203
• S204
• Seat heater sw sns gnd
• Seat module

Lumbar Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Lumbar Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• Circuit breaker 2 20a
• Driver lumbar motor
• Driver lumbar switch
• G300 (near right front seat)
• G301 (under driver seat)
• Hot at all times
• Junction block (behind left side of dash)
• Passenger lumbar motor
• Passenger lumbar switch
• Red
• S341
• S342
• S353
• S355

Passenger Power Seat Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Passenger Power Seat Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (limited/overland)
• 1 rear up 2 rear down 3 forward 4 rearward 5 front up 6 front down 7 recliner up 8 recliner down
• A (laredo)
• Circuit breaker 2 20a
• G300 (near right front seat)
• Hot at all times
• Junction block (behind left side of dash)
• Laredo
• Limited/overland
• Passenger power seat front riser motor
• Passenger power seat horizontal motor
• Passenger power seat rear riser motor
• Passenger power seat recliner motor
• Passenger power seat switch
• S329
• S342

POWER TOP/SUNROOF

Power Top/Sunroof Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Power Top/Sunroof Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• Accessory delay relay
• Accessory delay relay control
• Body control module
• Close
• Fuse 15a
• G301 (under driver seat)
• Ground
• Hot at all times
• Junction block (behind left side of dash)
• Motor b(+)
• Motor b(-)
• Open
• Position signal
• Q30
• Q41
• Q43
• Q46
• Red
• S337 (w/ autowipe)
• S345
• S370 (near breakout for sun roof module)
• Sun roof control module (near front of sun roof opening)
• Sun roof delay
• Sun roof motor
• Sun roof open
• Sun roof switch
• Sun roof vent
• Tan

POWER WINDOWS

Power Windows Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Power Windows Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (in breakout for c200)
• (in trough, near breakout for left courtesy lamp)
• (under left sied of dash, near steering column) data link connector
• D/f wind dn
• D/f wind up
• D/r wind dn
• D/r wind up
• Driver door module (behind left front door panel)
• Driver front power window motor
• Driver rear power window motor
• Driver rear power window switch
• Fuse 50a
• Fused b(+)
• G300 (near right front seat)
• G301 (under driver seat)
• Gnd
• Hot at all times
• Illumination
• Junction block (behind left side of dash) c2
• Nca
• P/f wind dn
• P/f wind up
• P/r wind dn
• P/r wind up
• Passenger door module (behind right front door panel)
• Passenger front power window motor
• Passenger rear power window motor
• Passenger rear power window power window switch switch
• Pci bus
• Power distribution center (next to battery)
• S210
• S226
• S312 (near breakout for c200)
• S324
• S330
• S336
• S338
• S356
• S357

RADIO

Radio Wiring Diagram, Base Radio for Jeep Grand Cherokee Laredo 2003

List of elements for Radio Wiring Diagram, Base Radio for Jeep Grand Cherokee Laredo 2003:

• Antenna
• Body control module
• Clockspring
• Connector (dlc) (under left side of dash, near steering column)
• D25
• Data link
• F60
• Fuse 10a
• Fuse 25a
• Fused b(+)
• Fused ign
• G300 (near right front seat)
• Ground
• Hot at all times
• Hot in run or acc
• Junction block (behind left side of dash)
• Left front door speaker
• Left instrument panel speaker
• Left rear door speaker
• Left remote radio switch
• Lf spkr (+)
• Lf spkr (-)
• Lr spkr (+)
• Lr spkr (-)
• Mode
• Nca
• Panel lamps
• Panel lamps driver
• Pci bus
• Preset
• Radio
• Radio control mux
• Radio control mux return
• Rf spkr (+)
• Rf spkr (-)
• Right front door speaker
• Right instrument panel speaker
• Right rear door speaker
• Right remote radio switch
• Rr spkr (+)
• Rr spkr (-)
• S210 (in trough, near breakout for left courtesy lamp)
• S215 (near breakout for horn switch)
• S216 (near breakout for remote radio switch 2)
• S221
• S224
• S226
• S360 (in breakout for c302)
• S361
• S362 (in breakout for c200)
• S363 (in breakout for c200)
• Seek down
• Seek up
• Vol down
• Vol up
• X10
• X12
• X20
• X51
• X52
• X53
• X54
• X55
• X56
• X57
• X58

Radio Wiring Diagram, Premium Radio for Jeep Grand Cherokee Laredo 2003

List of elements for Radio Wiring Diagram, Premium Radio for Jeep Grand Cherokee Laredo 2003:

• (dlc) (under left side of dash, near steering column)
• (in trough, near breakout for left courtesy lamp) s210
• (near breakout for power amplifier) s368
• Antenna
• Antenna module
• Audio out l
• Audio out r
• B(+)
• Body control module
• Clockspring
• Compact disc changer
• D25
• Data link connector
• Enable sig to amplifier
• Enable signal to amplifier
• F60
• Fuse 10a
• Fuse 25a
• Fused b(+)
• Fused ign
• G300 (near right front seat)
• Ground
• Hot at all times
• Hot in run or acc
• Ign sw out
• Ign switch
• Junction block (behind left side of dash)
• L dash (+)
• L dash (-)
• L front (+)
• L front (-)
• L rear (+)
• L rear (-)
• Left front door speaker
• Left instrument panel speaker
• Left rear door speaker
• Left remote radio switch
• Lf spkr (-)
• Lf spkr (+)
• Lf spkr (-)
• Lr spkr (+)
• Lr spkr (-)
• Lr spkr (+)
• Lr spkr (-)
• Mode
• Nca
• Panel lamps
• Panel lamps driver
• Pci bus
• Power amplifier (under passenger side rear seat cushion)
• Preset
• R dash (+)
• R dash (-)
• R front (+)
• R front (-)
• R rear (+)
• R rear (-)
• Radio
• Radio control mux
• Radio control mux return
• Red
• Red/ x10
• Rf spkr (+)
• Rf spkr (-)
• Rf spkr (+)
• Rf spkr (-)
• Right front door speaker
• Right instrument panel speaker
• Right rear door speaker
• Right remote radio switch
• Rr spkr (+)
• Rr spkr (-)
• Rr spkr (+)
• Rr spkr (-)
• S215 (near breakout for horn switch)
• S216 (near breakout for remote radio switch 2)
• S221
• S224 (right center of dash)
• S226
• S324 (in breakout for c200)
• S331
• S334
• Seek down
• Seek up
• Shield
• Sig to amp
• Vol down
• Vol up
• X112
• X12
• X160
• X40
• X41
• X51
• X52
• X53
• X54
• X55
• X56
• X57
• X58
• X64
• Z17

SHIFT INTERLOCK

Shift Interlock Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Shift Interlock Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• Body control module (on left end of dash, attached to junction block)
• Brake lamp switch (top of brake pedal arm)
• F12
• Fuse 10a
• Fused ign
• G200 (near air bag control module)
• G300 (near right front seat)
• Gnd
• Hot in run or start
• Junction block (behind left side of dash)
• K29
• Od off sw sens
• Panel lamps driver
• Panel lamps drv
• S203
• S205
• S314 (near breakout for c314)
• S329
• Sec brake sw sig
• Shifter assembly
• Transmissions system
• Z234
• Z300

STARTING/CHARGING

Charging Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Charging Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (near breakout for battery temperature sensor)
• Asd rly cntl
• Asd rly out
• Auto
• B(+)
• Battery
• Battery temperature sensor (in center of battery tray)
• Check gauges indicator
• D25
• Engine controls system
• Engine starter motor
• F42
• Fuel pump relay (in pdc)
• Fuse 10a
• Fuse 15a
• Fuse 30a
• Fuse b(+)
• Fused b(+)
• G100 (4.0: near starter) (4.7l: near intake plenum)
• G101 (near battery)
• Gen fld
• Gen source
• Generator
• Hot at all times
• Hot in run or start
• Instrument cluster
• Junction block (behind left side of dash)
• K125
• K20
• K25
• K51
• Meter ctrl
• Nca
• Pci bus
• Pcm)
• Pnk/ red
• Power distribution center (at right front corner of engine compt, next to battery)
• Powertrain control module (on right side of firewall)
• Red
• S126
• S131 (in trough, near breakout for pdc)
• S226
• Sens gnd
• Sens sig
• Shut down relay (in pdc)
• Voltmeter

Starting Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Starting Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (4.0l: near breakout for g103) (4.7l: near breakout for input speed sensor)
• (not used)
• 4.0l
• 4.7l
• Acc
• Battery
• C200
• Engine
• Engine starter motor
• F45
• Fuse 10a
• Fuse 40a
• G100 (4.0l: near starter) (4.7l: near intake plenum)
• G101 (near battery)
• Hold-in
• Ignition switch
• Junction block (behind left side of dash)
• Lock
• Off
• Park/ neutral position switch (lower left side of transmission)
• Power distribution center (right front corner of engine compt)
• Powertrain control module (on right side of firewall)
• Prk/ ntrl sw sns
• Pull-in
• Red
• Run
• S122
• S127
• S175
• Start
• Starter motor relay (in pdc)
• Transmission control module (on right inner fender)
• Transmission solenoid/trs assembly (on trans valve body)

SUPPLEMENTAL RESTRAINTS

Supplemental Restraints Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Supplemental Restraints Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (in trough, near breakout for left courtesy lamp)
• (in trough, near breakout for left courtesy lamp) s210
• Air bag control module (below center floor console, near park brake)
• Air bag warning indicator
• Clockspring
• D25
• Data link connector (under left side of dash, near steering column)
• Dr crtn line 1
• Dr crtn line 2
• Driver air bag squib 1
• Driver air bag squib 2
• Driver curtain air bag squib
• Driver seat belt switch
• Driver side impact sensor
• Drv belt sw gnd
• Drv belt sw sns
• Drv side impt gnd
• Drv side impt sig
• Drv squib 1 ln 1
• Drv squib 1 ln 2
• Drv squib 2 ln 1
• Drv squib 2 ln 2
• F14
• F23
• Fuse 22 10a
• Fuse 32 10a
• Fuse 33 10a
• G200 (near air bag control module)
• G201 (near air bag control module)
• Gnd
• Ground
• Hot in run
• Hot in run or start
• Ign run
• Ign run/start
• Instrument cluster
• Junction block (behind left side of dash)
• Left front impact sensor (near windshield washer pump)
• Lf sensor gnd
• Lf sensor sig
• Line 1
• Line 2
• Pass belt sw gnd
• Pass belt sw sns
• Pass crtn line 1
• Pass crtn line 2
• Pass side impt grd
• Pass side impt sig
• Pass squib 1 ln 1
• Pass squib 1 ln 2
• Pass squib 2 ln 1
• Pass squib 2 ln 2
• Passenger air bag
• Passenger curtain air bag squib
• Passenger seat belt switch
• Passenger side impact sensor
• Pci bus
• R131
• R132
• R133
• R134
• R42
• R43
• R44
• R45
• R46
• R47
• R48
• R49
• R57
• R58
• R59
• R60
• R61
• R62
• R63
• R64
• R72
• R73
• R74
• R75
• Rf sensor gnd
• Rf sensor sig
• Right front impact sensor (near right radiator support)
• S211
• S226
• Sw sense
• Tan

TRANSMISSION

4.0L

4.0L, A/T Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for 4.0L, A/T Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (in trough near coolant level sensor)
• (near breakout to c102, c103 and c104)
• (near breakout to fuel injector 6)
• (near breakout to g104)
• 3-4 shift ctrl
• 3-4 shift sol
• Body control module (on left end of dash, attached to junction block)
• Brake lamp switch (top of brake pedal arm)
• Brake switch
• Engine controls system
• Engine starter motor relay
• F12
• Fuse 10a
• Fuse 15a
• Fuse 30a
• Fused ign
• G200 (near airbag control module)
• G300 (near right front seat)
• Gen source
• Generator
• Gnd
• Gov press ctrl
• Gov press sens
• Gov press sol
• Hot at all times
• Hot in run or start
• Junction block (behind left side of dash)
• K125
• K29
• K30
• K77
• K88
• Leak detection pump (left rear quarter panel)
• Not used
• Od off sw sens
• Output speed sensor (at left rear side of transmission)
• Output ss gnd
• Output ss sig
• Panel lamps drv
• Park/neutral position switch (on lower left side of transmission)
• Pnk
• Pnp sw sense
• Pos sens out
• Power distribution center (at right front corner of engine compt, next to battery)
• Powertrain control module (on right side of firewall)
• Red
• S102
• S107
• S112
• S122 (in breakout to c103)
• S126
• S203
• S205
• S314 (near breakout to brake light switch)
• S329
• Sec brake sw sig
• Sens gnd
• Shifter assembly
• T case pos sens
• T13
• T14
• T15
• T20
• T25
• T41
• T54
• T60
• Tcc sol
• Tcc sol ctrl
• Trans relay out
• Trans rly ctrl
• Trans temp sens
• Transfer case position sensor (on transfer case)
• Transmission control relay
• Transmission solenoid assembly (on transmission valve body)
• Z234
• Z300

4.7L

4.7L, A/T Wiring Diagram (1 of 2) for Jeep Grand Cherokee Laredo 2003

List of elements for 4.7L, A/T Wiring Diagram (1 of 2) for Jeep Grand Cherokee Laredo 2003:

• (right side of engine)
• 2c press
• 2c press sw
• 2c sol
• 2c sol ctrl
• 4c press
• 4c press sw
• 4c sol
• 4c sol ctrl
• A30
• Back-up lamps
• Ckp sens sig
• D20
• D21
• D25
• Engine starter motor relay (in pdc)
• F45
• F991
• Fuse 10a
• Fuse 30a
• Fused b(+)
• Fused ign sw
• G102
• G108 (near power distribution center)
• Gnd
• Hot at all times
• Hot in run
• Hot in start
• Input ss sig
• Junction block (behind left side of dash)
• K22
• K24
• K30
• L/r press
• L/r press sw
• L/r sol
• L/r sol ctrl
• Level sensor)
• Line press sens
• Ms sol
• Ms sol ctrl
• Not used
• Od off sw sens
• Od press
• Od press sw
• Od sol
• Od sol ctrl
• Output ss sig
• Pci bus
• Pnk
• Power distribution center (at right front corner of engine compt, next to battery)
• Press sol
• Press sol ctrl
• Red
• S115 (near breakout for tcm)
• S122 (near breakout for input speed sensor)
• Sci receive
• Sci transmit
• Sensor gnd
• Ss gnd
• T10
• T118
• T119
• T120
• T13
• T130
• T138
• T14
• T140
• T141
• T147
• T150
• T159
• T16
• T29
• T42
• T48
• T52
• T54
• T59
• T60
• Temp sens
• Torq mgmt req
• Tp sens sig
• Trans rly ctrl
• Trans rly out
• Trans temp sens
• Trans- mission control relay
• Transmission control module (on right inner fender)
• Transmission solenoid/ trs assembly (on transmission valve body)
• Trs t1
• Trs t1 sense
• Trs t2
• Trs t2 sense
• Trs t3
• Trs t3 sense
• Trs t41
• Trs t41 sense
• Trs t42
• Trs t42 sense
• Ud press
• Ud press sw
• Ud sol
• Ud sol ctrl
• Z112
• Z113
• Z114
• Z12

4.7L, A/T Wiring Diagram (2 of 2) for Jeep Grand Cherokee Laredo 2003

List of elements for 4.7L, A/T Wiring Diagram (2 of 2) for Jeep Grand Cherokee Laredo 2003:

• (in breakout for coolant level sensor)
• (in breakout for crankshaft position sensor) s119
• (near breakout for coil on plug 8)
• (near breakout for fuel inj 7)
• (near breakout for pcm) s125
• (near breakout to transmission control module)
• (on left end of dash, attached to junction block) body control module
• (on left side of engine compt, mounted to hydraulic control unit) controller anti-lock brake
• (on right side of engine block, above starter motor) crankshaft position sensor
• (on throttle body)
• Automatic shut down relay (in pdc)
• B22
• Brake lamp switch (top of brake pedal arm)
• Brake switch
• Ckp sens sig
• D21
• D25
• Data link connector (under left side of dash, near steering column)
• Engine controls system
• F12
• F991
• Fuel pump relay (in pdc)
• Fuse 10a
• Fused ign
• Fused ign sw
• G102 (right side of engine)
• G200 (near airbag control module)
• G300 (near right front seat)
• Gnd
• Hot in run or start
• Input speed sensor (at left front side of transmission)
• Junction block (behind left side of dash)
• K22
• K24
• K29
• Line pressure sensor (on right rear side of transmission)
• Od off sw sens
• Output speed sensor (at left rear side of transmission)
• Panel lamps drv
• Pci bus
• Pnk
• Pnp sw sense
• Powertrain control module (on right side of firewall)
• Press sig
• S105
• S112
• S113 (near breakout to tcm)
• S114
• S116
• S120 (near breakout for crankshaft position sensor)
• S130
• S203
• S205
• S314 (near breakout to brake light switch)
• S329
• Sci transmit
• Sec brake sw sig
• Sensor gnd
• Shifter assembly
• T10
• T41
• Throttle position sensor
• Torq mgmt req
• Tp sens sig
• Vss sig
• Z234
• Z300

TRUNK, TAILGATE, FUEL DOOR

Tailgate Release Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Tailgate Release Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (under driver seat)
• Fuse 15a
• G301
• Hot at all times
• Junction block (behind left side of dash)
• Liftgate flip-up push button switch
• Liftgate flip-up release solenoid (in liftgate)
• Liftgate power lock motor
• Limit switch
• Pnk
• S376
• S377

WARNING SYSTEMS

Warning Systems Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Warning Systems Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (near brakout for c200) s312
• Air bag control module (below center floor console, near park brake)
• Auto
• Body control module
• Computer data lines system
• D25
• Driver door lock motor/ ajar switch
• Driver door module
• Driver seat belt switch
• Drv dr ajar sw
• Fuse 10a
• Fused b(+)
• G200 (near air bag control module)
• G26
• G300 (near right front seat)
• G301 (under driver seat)
• G52
• G74
• G75
• G76
• G77
• G78
• G80
• Ground
• Head
• Headlamp switch mux
• Headlamp switch rtn
• Hot at all times
• Hot in run & acc
• Hot in run & start
• Hot in run or start
• Ign (st/run)
• Ignition switch
• Instrument cluster
• Junction block (behind left side of dash)
• Key-in ignition switch
• L80
• Left liftgate ajar switch
• Left multi-function switch
• Left rear door lock motor/ ajar switch
• Liftgate ajar
• Liftgate flip-up ajar
• Liftgate flip-up ajar switch
• Liftgate flip-up ajar switch sense
• Lr door ajar
• Nca
• Off
• Park
• Pass dr ajar sw
• Passenger door lock motor/ ajar switch
• Passenger door module
• Passenger seat belt switch
• Pci bus
• Pnk/ red
• Pnk/red
• R57
• R58
• R59
• R60
• Rear wiper motor
• Right liftgate ajar switch
• Right rear door lock motor/ ajar switch
• Rr door ajar
• S205
• S210 (in trough near breakout for left courtesy lamp)
• S211
• S226
• S324 (in breakout for c200)
• S336
• S338 s338
• S356
• S357
• S376
• S379 (in breakout for rear wiper motor)
• Seat belt warning
• Sw sen
• Tan/ red
• Tan/red
• Z132
• Z234

WIPER/WASHER

Wiper/Washer Wiring Diagram for Jeep Grand Cherokee Laredo 2003

List of elements for Wiper/Washer Wiring Diagram for Jeep Grand Cherokee Laredo 2003:

• (in trough, near breakout for left courtesy lamp) s212
• (left side of engine compartment) g106
• (under driver seat) g301
• (under left side of dash, near steering column)
• 0. off 1. intermittent 1 2. intermittent 2 3. intermittent 3 4. intermittent 4 5. intermittent 5 6. low 7. high
• 87a
• Acc rly out
• Accessory delay relay
• Accessory delay relay control
• Autowipe
• Autowipe/ sunroof
• Body control module
• Circuit breaker 1 20a
• D25
• Data link connector (dlc)
• Delay
• Detec- tion
• Fuse 10a
• Fuse 15a
• G301 (under driver seat)
• G80
• Ground
• High
• Hot at all times
• Hot in acc or run
• Junction block (behind left side of dash)
• Liftgate flip-up ajar sw
• Liftgate flip-up ajar switch (in liftgate)
• Low
• Mist switch
• Off
• Pci bus
• Pnk
• Power distribution center (right front corner of engine compt, next to battery)
• Power tops system
• Q30
• Rain sensor (front center overhead)
• Rear wash switch
• Rear washer pump (bottom of washer reservoir)
• Rear wiper motor (on liftgate inner panel)
• Right multi-function switch
• S134
• S337
• S369
• S376
• S377
• S379 (in breakout for rear wiper motor)
• Solid state
• Tan
• Tan/red
• V10
• V11
• V14
• V16
• V48
• V52
• V55
• Wash switch
• Washer fluid level switch (near bottom of washer reservoir)
• Washer fluid switch sense
• Washer pump switch sense
• Windshield washer pump (bottom of washer reservoir)
• Windshield wiper motor (on left side of firewall)
• Windshield wiper sw mux
• Windshield wiper sw rtn
• Wiper high control
• Wiper high/ low relay
• Wiper high/low relay ctrl
• Wiper on/off relay
• Wiper on/off relay ctrl
• Wiper park switch sense
• Wiper switch
• Z155