Diagram sections — 30 (55 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT BODY CONTROL MODULES COMPUTER DATA LINES COOLING FAN CRUISE CONTROL DEFOGGERS ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS MEMORY SYSTEMS POWER DISTRIBUTION POWER DOOR LOCKS POWER MIRRORS POWER SEATS POWER TOP/SUNROOF POWER WINDOWS RADIO SHIFT INTERLOCK STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION TRUNK, TAILGATE, FUEL DOOR WARNING SYSTEMS WIPER/WASHER
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: 94 (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: 61 (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: 59 (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: 72 (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
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: 41 (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: 34 (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: 55 (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: 39 (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 (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: 39 (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: 77 (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 (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: 40 (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: 96 (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: 20 (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: 74 (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: 37 (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: 50 (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: 44 (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: 30 (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: 26 (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: 59 (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: 59 (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: 14 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: 83 (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: 21 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: 74 (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: 32 (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: 49 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
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: 67 (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: 67 (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: 45 (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: 80 (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: 60 (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: 44 (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: 14 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: 37 (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: 14 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: 16 (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: 28 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: 39 (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: 66 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
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: 23 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: 46 (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: 33 (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: 88 (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: 77 (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 (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: 67 (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: 12 (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: 80 (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: 73 (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
