Разделы схем — 31 (всего 62)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT BODY CONTROL MODULES COMPUTER DATA LINES COOLING FAN CRUISE CONTROL DEFOGGERS ELECTRONIC POWER STEERING ELECTRONIC SUSPENSION ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS 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 Mercury Grand Marquis LS 2003 List of elements for Automatic A/C Wiring Diagram for Mercury Grand Marquis LS 2003: 85 (at center rear of engine) g106 (at front of right front fender apron) g102 (at front of right front fender apron) g102 (behind right kick panel) g201 (electronic cluster) instrument cluster (near breakout to c1019) s109 (near breakout to c1046) s113 (not used) A/c clutch field coil (lower right front of engine) A/c clutch output A/c clutch relay A/c compressor cycling switch (in right rear of engine compartment, on a/c accumulator) Air bag sliding contact Amb temp sens input Ambient air temperature sensor (on front of upper radiator support) Audio/climate control system Autolamp sensor (on upper left side of dash) Autolamp sensor) Battery Battery junction box (bjb) (in right front of engine compartment, behind battery) Battery junction box (in right front of engine compartment, behind battery) Blend door (heat) Blower motor relay Blower mtr output Blower speed ctrl C2145a C220b C228a C228b Central junction box (cjb) (below dash, left of steering column) Computer data lines system Eatc module Electronic automatic temperature control (eatc) module (behind center of dash) Engine cooling fan motor (front of engine compt) Fan down Fan up Front blower motor Front blower motor speed controller (on right rear side of engine compt) Front fender apron) g102 Front panel illum Fuse 15a Fuse 40a Fuse 50a G201 (behind right kick panel) Ground Hot at all times Hot in run Hot in run or acc Hot in run or start Ignition In car temp sens In-vehicle temperature sensor (behind top center of dash) Instrument illum Interior lights system Lighting control module (behind center of dash) Message center switch out blend door (cool) Nca Pcm power relay Powertrain control module (pcm) (in engine compartment, on left side of firewall) Radio Red Reference voltage Relay signal Remote ctrl unit Rest S113 (in dash panel to headlamp junction harness, near breakout to c1046) S122 (in dash panel to headlamp junction harness, left rear of engine compartment) S133 (left rear of engine compt) S136 (left rear of engine compt) S142 (in dash panel to headlamp junction harness, in breakout to engine cooling fan motor) S156 S157 (in engine control sensor & fuel charge wiring harness, near breakout to coil on plug 2) S227 (in main wiring harness, near breakout to lighting control module) S276 (in main wiring harness, near breakout to autolamp sensor) S285 (in main wiring harness, near breakout to adjustable pedal switch) Scp bus (+) Scp bus (-) Sensor ground Sunload sens input Temp door variable resistor Temp down Temp up Temperature blend door actuator (behind right side of dash, on top of a/c plenum) Temperature control module) Variable resistor Manual A/C Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Manual A/C Wiring Diagram for Mercury Grand Marquis LS 2003: 71 (at front of right (at front of right front fender apron) g102 (behind right kick panel) g201 (front of engine compartment) (not used) A/c clutch field coil (lower right front of engine) A/c clutch relay A/c compressor cycling switch (in right rear of engine compartment, on a/c accumulator) A/c switch Battery junction box (bjb) (in right front of engine compartment, behind battery) Battery junction box (bjb) (in right front of engine compt, behind battery) Blower motor relay Blower motor switch C294a C294b C294c C294d Central junction box (cjb) (below dash, left of steering column) Control module) s266 Def Def/floor Engine cooling fan motor Firewall) Floor Front blower motor (on top right side of Front blower motor resistor assembly (on right side of firewall) Front fender apron) Function selector switch assembly Fuse 15a Fuse 25a Fuse 30a Fuse 40a Fuse 50a G101 (at rear of left front fender apron) G102 G102 (at front of right G106 (at center rear of engine) High Hot at all times Hot in run Hot in start or run Illumination Interior lights system Low Max Med high Med low Mode switch Near breakout to coil on plug 2) Off Panel Panel/ floor Pcm power diode Pcm power relay Powertrain control module (pcm) (in engine compartment, on left side of firewall) Red/ S109 (in dash panel to headlamp junction harness, near breakout to c1019) S113 (in dash panel to headlamp junction harness, near breakout S113 (in dash panel to headlamp junction harness, near breakout to c1046) S117 (near breakout to c1010) S118 (in dash panel to headlamp junction harness, left rear of engine compt) S142 (in breakout to engine cooling fan motor) S144 (in dash panel to headlamp junction harness, in breakout to front blower motor) S204 (in main wiring harness, near breakout to clock) S204 (near breakout breakout to clock) S276 (in main wiring harness, near breakout to autolamp sensor) S276 (near breakout to autolamp sensor) Solid state Temperature blend door actuator (behind right side of dash, on top of a/c plenum) Temperature control potentiometer To c1046)
ANTI-LOCK BRAKES Anti-lock Brakes Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Anti-lock Brakes Wiring Diagram for Mercury Grand Marquis LS 2003: 64 Anti- lock ind Anti-lock brake module (on left front of upper radiator support) Anti-lock ind Battery Battery junction box (bjb) (in right front of engine compt, behind battery) Bpp switch Brake pedal position switch (top of brake pedal support) C220c C2220a C2220b Central junction box (cjb) (below dash, left of steering column) Central junction box (cjb) (left of steering column) Computer data lines system Conventional cluster Dlc Electronic cluster Except marauder Fuse 10a Fuse 15a Fuse 20a Fuse 40a Fuse 5a G101 (at rear of left front fender apron) G102 (at front of right front fender apron) G201 (behind right kick panel) Ground Hot at all times Hot in run Hot in run or acc Ign Ignition Illumination Indicator Instrument cluster Interior lights system Left front wheel speed sensor (in left front brake assembly) Left rear wheel speed sensor (in left rear brake assembly) Lf sensor Lr sensor Marauder Red Red/pnk Rf sensor Right front wheel speed sensor (in right front brake assembly) Right rear wheel speed sensor (in right rear brake assembly) Rr sensor S112 S132 (in dash panel to headlamp junction harness, left rear of engine compt) S154 S224 S231 S265 Scp bus (+) Scp bus (-) Tc ind Tc ind relay Tc sw in Tract asst ind Tract asst input Traction control indicator relay Traction control switch (left side of dash) Warning Warning lamps module (behind left side of dash) Warning system
ANTI-THEFT Anti-theft Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Anti-theft Wiring Diagram for Mercury Grand Marquis LS 2003: 20 (in dash panel to headlamp junction harness, near breakout to c1047) s134 (in dash panel to headlamp junction harness, near breakout to c1047) s135 Autolamp sensor (on upper left side of dash) Battery junction box (at right front side of engine compt, behind battery) Central junction box (below dash, left of steering column) Data link connector (behind left side of dash) Except police vehicle & 4.6l cng Fuse 15a Fuse 25a G201 (behind right kick panel) Hot at all times Hot in start or run Passive anti-theft transceiver Powertrain control module (pcm) (in engine compartment, on left side of firewall) S210 S223 S285 Scp + Scp - Starter relay
BODY CONTROL MODULES Body Control Modules Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Body Control Modules Wiring Diagram for Mercury Grand Marquis LS 2003: 32 (near breakout to g204) Battery junction box (in right front of engine compartment, behind battery) C2145a C2145c C220b C501a C501b C501c Central junction box (below dash, left of steering column) Circuit breaker 15a Computer data lines system Door locks system Driver door module (bottom front of left front door) Fuse 10a Fuse 15a Fuse 20a G200 (behind right kick panel) G202 (behind left kick panel) Hot at all times Hot in run Hot in start Hot with bpp switch engaged Instrument cluster Left front exterior door handle switch Lighting control module (behind center of dash) Right front exterior door handle switch S205 S238 (in main body wiring harness, near breakout to c214) S258 S274 S277 (electronic cluster) (near breakout to lighting control module) S500
COMPUTER DATA LINES Computer Data Lines Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Computer Data Lines Wiring Diagram for Mercury Grand Marquis LS 2003: 44 (in breakout to data link connector) (in breakout to data link connector) s297 (near breakout to c1047) (near breakout to g200) (near breakout to g204) s241 4.6l cng Abs control module (on left front of upper radiator support) Air suspension module (behind right side of dash, above glove box) Battery junction box (in right front of engine compt, behind battery) C2131a C2145c C2220a C228a C310b C501a C9013a Data link connector (behind left side of dash) Driver door module (bottom front of left front door) Electronic automatic temperature control module (behind center of dash) Fuse 30a G201 (behind right kick panel) Hot at all times Instrument cluster (w/ cng) Iso Lighting control module (behind center of dash) Natural gas vehicle (ngv) module (on front of radiator support) Overhead console Powertrain control module (pcm) (on left side of firewall) Restraints control module (in left front footwell) S115 S134 S135 (near breakout to c1047) S2016 S2017 S204 S271 (near breakout to rear window defrost switch) S293 S296 Scp (+) Scp (-) Variable assist power steering module (behind right side of dash, above glove box) W/ air suspension W/ keyless entry W/o air suspen- sion
COOLING FAN Cooling Fan Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Cooling Fan Wiring Diagram for Mercury Grand Marquis LS 2003: 15 (behind right (in engine compt, on left side of firewall) powertrain control module (pcm) Battery junction box (bjb) (in right front of engine compartment, behind battery) Engine coolant temperature (ect) sensor (on top right front of engine, near fuel Engine cooling fan motor (front of engine compt) Fuse 50a G102 (at front of right front fender apron) G201 Hot at all times Injector 1) Kick panel) S113 S128 S141 (near breakout to c1026) S142 (in breakout to engine cooling fan motor)
CRUISE CONTROL Cruise Control Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Cruise Control Wiring Diagram for Mercury Grand Marquis LS 2003: 42 (in dash panel to headlamp junction harness, near breakout to speed control actuator) s129 Air bag sliding contact (at base of steering column) Battery junction box (bjb) (in right front of engine compt, behind battery) Brake pedal position switch (top of brake pedal support) C2145a C218a C218c C220a Central junction box (cjb) (below dash, left of steering column) Coast Ctrl sw rtn Deactivator switch (in left front footwell) Electronic cluster Except steering wheel audio/climate control switch Fuse 15a Fuse 20a G201 (behind right kick panel) Ground Horn relay Horn switch Hot at all times Hot in acc or run Instrument cluster Lighting control module (behind center of dash) Nca Off Powertrain control module (pcm) (in engine compt, on left side of firewall) Red Resume S104 S122 S128 S132 (in dash panel to headlamp junction harness, left rear of engine compt) S265 Set/ accel Speed control actuator (left rear side of engine compt) Speed control switch Steering wheel audio/climate control switch Vpwr Vref W/ steering wheel controls W/o steering wheel controls
DEFOGGERS Defoggers Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Defoggers Wiring Diagram for Mercury Grand Marquis LS 2003: 26 (near breakout to c213) s200 Antenna Battery junction box (in right front of engine compt, behind battery) C2145a Central junction box (below dash, left of steering column) Fuse 10 10a Fuse 104 40a G200 (behind right kick panel) G201 (behind right kick panel) Hot at all times Illum switch Interior lights system Left exterior rear view mirror Lighting control module (behind center of dash) Nca Off On ind Rear window defrost grid Rear window defrost relay Rear window defrost switch Right exterior rear view mirror S153 S207 S217 S500 S600
ELECTRONIC POWER STEERING Electronic Power Steering Wiring Diagram, with Air Suspension for Mercury Grand Marquis LS 2003 List of elements for Electronic Power Steering Wiring Diagram, with Air Suspension for Mercury Grand Marquis LS 2003: 23 Air suspension module (behind right side of dash, above glove box) Battery junction box (bjb) (in right front of engine compt, behind battery) C2131a C2131b Central junction box (cjb) (below dash, left of steering column) Computer data lines system Crown victoria, grand marquis Fuse 15a Fuse 30a G201 (behind right kick panel) Ground Hot at all times Hot in run Marauder Power steering valve solenoid (on left side front of engine) Powertrain control module (pcm) (in engine compt, on left side of firewall) S205 S206 S226 (in main body wiring harness, near breakout to c212) S274 Vbatt Vpwr Vss + Electronic Power Steering Wiring Diagram, without Air Suspension for Mercury Grand Marquis LS 2003 List of elements for Electronic Power Steering Wiring Diagram, without Air Suspension for Mercury Grand Marquis LS 2003: 26 (behind right kick panel) g201 (except police) Battery junction box (bjb) (in right front of engine compt, behind battery) C2231a C2231b Central junction box (cjb) (below dash, left of steering column) Computer data lines system Fuse 15a Fuse 30a Ground Hot at all times Hot in run Power steering valve solenoid (on left side front of engine) Powertrain control module (pcm) (in engine compt, on left side of firewall) S205 S206 S226 (in main body wiring harness, near breakout to c212) S274 Scp+ Scp- Signal rtn Sw pwr Variable assist power steering (vaps) module (behind right side of dash, above glove box) Vbatt Vpwr Vss +
ELECTRONIC SUSPENSION Electronic Suspension Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Electronic Suspension Wiring Diagram for Mercury Grand Marquis LS 2003: 44 (at front of right front fender apron) g102 (behind center of dash) lighting control module (in right front of engine compt, behind battery) battery junction box (near breakout to air suspension module) s246 (near breakout to c212) s226 (near breakout to c214) s206 Air suspension compressor assembly (at left side front of engine compt) Air suspension compressor relay Air suspension height sensor (under rear of vehicle attached to control arm) Air suspension indicator Air suspension module (behind right side of dash, above glove box) Analog cluster Battery junction box (in right front of engine compt, behind battery) C2131a C2131b C2145c C220a C2220a Central junction box (below dash, left of steering column) Compressor Computer data lines system Electronic cluster Electronic power steering system Fuse 15a Fuse 30a G200 (behind right kick panel) G201 (behind right kick panel) Hot at all times Hot in run Instrument cluster Left rear shock absorber solenoid valve (below left rear of vehicle, top of air spring) Marauder Nca Pnk Powertrain control module (pcm) (in engine compt, on left side of firewall) Pressure reservoir control switch (front left side of trunk) Red Right rear shock absorber solenoid valve (below right rear of vehicle, top of air spring) S100 S112 S205 S274 (except police) S406 Vent
ENGINE PERFORMANCE
4.6L 4.6L, Engine Performance Wiring Diagram (1 of 4) for Mercury Grand Marquis LS 2003 List of elements for 4.6L, Engine Performance Wiring Diagram (1 of 4) for Mercury Grand Marquis LS 2003: 95 (in dash panel to headlamp junc- tion harn, near breakout to c1047) (in eng control sensor & fuel charge wiring harn, near breakout to c1033) (in eng control sensor & fuel charge wiring harn, near breakout to coil on plig 8) (left center of eng) (marauder) (others) (others) (marauder) (rear of left front fender apron) g101 (right center of eng) A/c air temp in A/c cutout A/c evaporator discharge air temperature sensor (right side rear of eng compt) A/c system Anti-theft system Battery junction box (right front of engine compt, behind battery) Case gnd Central junction box (below dash, left of steering column) Charging system Ckp (+) Ckp (-) Coil 1 Coil 3 Coil 4 Coil 5 Coil 6 Cooling fans Crankshaft position sensor (lower right front of engine) Crankshaft position sensor shield Cyl head temp Data link (+) Data link (-) Data link connector (behind left side of dash) Ect ind Egr vac reg Eprom Fan high rly Fan low rly Floor shifter Fuel door ind Fuel flow Fuel gauge Fuel pump Fuse 15a Fuse 25a Fuse 30a G101 (rear of left front fender apron) Gen "s" term Gnd Hot at all times Hot in run or start Iat sens in Ignition coils Ignition trans- former capa- citor 1&2 (marauder) Ignition transformer capacitor (left front of engine) Instrument cluster system Knock sens sig Knock sensor (right front of engine) Led sig gnd Maf sig rtn Map sens in Mil Nca Others Overdrive cancel switch Pcm power diode Pcm power relay Powertrain control module (pcm) (in engine compt, on left side of firewall) Psp sens in Pwr gnd Rt ho2s 12 Rx sig S101 S103 S111 S115 S118 S134 S135 S140 S151 S160 S223 S276 Shft sol a Shft sol b Starting system Stating/charging system Tcil Tr1 Tr2 Tr4 Trans ctrl sw Trans temp Transmissions system Tx sig W/ center console 4.6L, Engine Performance Wiring Diagram (2 of 4) for Mercury Grand Marquis LS 2003 List of elements for 4.6L, Engine Performance Wiring Diagram (2 of 4) for Mercury Grand Marquis LS 2003: 45 (near braek- out to c1033) (near breakout to c1026) (near breakout to coil on plug 4) (speedometer/ odometer) vehicle speed input 4r70w transmission Analog Brake pedal position switch (top of brake pedal support) C220b C220c C2220a C2220b Central junction box (below dash, left of steering column) Differential pressure feedback egr sensor (near right side of intake manifold) Digital Digital transmission range (dtr) sensor (left side of transmission) Electronic pressure control solenoid Engine coolant temp input Engine coolant temperature sender (top right front of eng, near fuel injector 1) Fuse 15a G101 (rear of left front fender apron) G201 (behind right kick panel) Hot at all times Instrument cluster Malfunction indicator input Marauder Mass air- flow sensor (behind air cleaner assembly) Others Power steering pressure switch R n Red Red marauder S118 S126 S128 S132 S141 S150 S265 Shift solenoids Ssa Ssb Throttle position sensor (left side of throttle body) Torque converter clutch solenoid Transmission fluid temperature sensor Vapor management valve (rear center of engine compt) 4.6L, Engine Performance Wiring Diagram (3 of 4) for Mercury Grand Marquis LS 2003 List of elements for 4.6L, Engine Performance Wiring Diagram (3 of 4) for Mercury Grand Marquis LS 2003: 48 (in trunk, on left support) inertia fuel shutoff switch (left rear of eng compt) (near breakout to c1019) (near breakout to c1026) (near breakout to c1033 s123 (near breakout to output shaft speed sensor) s146 (on left side front of trunk) fuel pump module (on left side of transmission) A/c system Battery junction box (right front of engine compt) Camshaft position sensor (left front of engine, below left ignition transformer capacitor) Cylinder head temperature sensor (top left front of engine) Engine coolant temperature sensor (near fuel injector 1) Fuel pump Fuel pump relay Fuel tank pressure transducer sensor Fuel tank unit Fuse 15a Fuse 20a G102 (at front of right front fender apron) G201 (behind right kick panel) G400 (at center of luggage compt) Heated oxygen sensor 11 (lower right rear of engine, in exhaust manifold) Heated oxygen sensor 12 (in exhaust, rear of catalyst) Heated oxygen sensor 21 (lower left rear of engine, in exhaust manifold) Heated oxygen sensor 22 (in exhaust, rear of catalyst) Hot at all times Injection pressure sensor (right front of eng) Instrument cluster system Marauder Nca Other Others Red Red/pnk S109 S110 S113 S125 S130 S143 S147 S210 S210 (in breakout to autolamp sensor) S256 S267 S286 S303 4.6L, Engine Performance Wiring Diagram (4 of 4) for Mercury Grand Marquis LS 2003 List of elements for 4.6L, Engine Performance Wiring Diagram (4 of 4) for Mercury Grand Marquis LS 2003: 85 (behind center of of dash) warning buzzer/ chime module (behind right side of dash, above glove box) air suspension module (behind right side of dash, above glove box) variable assist power steering module (in center rear of trunk) evap canister vent valve A/c cutout sw A/c system A/c system (a/c clutch sw) A/c wot cutout Batt C2131b C2145b C2231b C2232b C290c C4170d C9013a (w/ roof opening panel) Cam pos in Can vent sol Cht sensor Coil 2 Coil 7 Coil 8 Compt) Dpfe sens Epc sol rtn sig Evap purge vlve Fuel inj 1 Fuel inj 2 Fuel inj 3 Fuel inj 4 Fuel inj 5 Fuel inj 6 Fuel inj 7 Fuel inj 8 Fuel injectors Fuel press Fuel pump ctrl G101 (rear of left front fender apron) G201 (behind right kick panel) Gen/bat ind ctrl Gnd Heater ctrl Iac sol Idle air control valve (left side of intake manifold) Inj press in Knock sens (+) L ho2s Lft ho2s 21 Lft ho2s 22 Lighting control module (behind center of dash) Maf sens in Marauder Oss (+) Others Output shaft speed sensor (left rear side of transmission) Overheah console Police auxiliary junction block (front) (behind center of dash) Police auxiliary junction block (rear) (behind bottom center of rear seats) Power gnd Powertrain control module (pcm) (in engine compt, on left side of firewall) R ho2s Radio Red Red/pnk Ref volt Rt ho2s 11 S118 S128 S129 (near breakout to speed control actuator) S131 (near breakout to c1033) S148 (near breaout to coil on plug 4) S247 (near breakout to lighting control module) Sig rtn Speed control actuator (left side of eng Starting/charging system Tan Tan/red Tcc sol Tp sens in Tr3 Vpwr Vss (+) Vss sig W/ air suspension W/ varps
EXTERIOR LIGHTS Back-up Lamps Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Back-up Lamps Wiring Diagram for Mercury Grand Marquis LS 2003: 11 (behind right kick panel) g200 Central junction box (below dash, left of steering column) Digital transmission range (dtr) sensor (on left side of transmission) Electrochromatic inside mirror unit (w/ electronic day/night mirror) Fuse 15a Harness, near breakout to c213) Hot in run Left reversing lamp Right reversing lamp S266 S420 Exterior Lamps Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Exterior Lamps Wiring Diagram for Mercury Grand Marquis LS 2003: 103 (at front of right front fender apron) g102 (behind center of dash) lighting control module (behind right kick panel) (behind right kick panel) g200 (in breakout to c410) (in dash panel to headlamp junction harness, near breakout to c1019) (in main wiring harness, in breakout to instrument cluster) (in main wiring harness, near breakout to lighting control module) s244 (in rear lamp wiring harness, in breakout to c411) (near breakout to g400) s409 (near breakout to c1010) s116 (near breakout to c213) s283 (near breakout to left front brake sensor) s120 (on steering column) Auto Autolamp on/off signal B+ vbat 3 Brake pedal position switch (top of brake pedal support) C202a C202c C205a C2145a C2145b C2145c C220c C2220a C2220b C501a Central junction box (below dash, left of steering column) Clock Conventional Driver door module (bottom front of left front door) Electronic Ends in harness Flasher power input Flasher power output Fuse 15a Fuse 20a Fuse 25a G102 (at front of right front fender apron) G201 G400 (at center of of luggage compartment) G401 (at center of package tray) Hazard Head Headlamps, off, monitor Headlamps, on/off signal Headlights system (marauder) High mounted stoplamp Hot at all times Hot in run Instrument cluster Left front park/ turn lamp Left front parking lamp Left rear park/stop/ turn lamp 1 Left rear park/stop/ turn lamp 2 Left turn ind License lamp Lo beams output Main light Multi- function switch Normal Off Park Park lamps, on/off signal Parklamp output Performance Right front park/ turn lamp Right front parking lamp Right rear park/stop/ turn lamp 1 Right rear park/stop/ turn lamp 2 Right turn ind S107 S108 S113 S207 S242 (near breakout to ignition switch) S257 S262 S263 S265 S281 S282 S285 S400 S401 S413 S414 S416 S420 S422 S442 Shield Shift interlock, cruise control, anti-lock brakes, engine controls systems Switch Taxi Taxi roof lamp Taxi roof lamp switch Turn left Turn right Vbatt W/ keyless entry Wiring harness, in breakout to c1019)
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 3) for Mercury Grand Marquis LS 2003 List of elements for Ground Distribution Wiring Diagram (1 of 3) for Mercury Grand Marquis LS 2003: 81 (electronic cluster) washer fluid level switch (front of right front fender apron) (in dash panel to headlamp junction harness, left rear of engine compartment) (in right front of engine compartment, behind battery) battery junction box (bjb) (marauder) right front fog lamp 4.6l A/c clutch field coil Abs control module Air suspension compressor assembly Battery Blower motor relay Brake fluid level switch C2145b C220b C220c C2220a C2220b Conventional cluster Crown victoria Crown victoria w/ police package, 4.6l cng Daytime running lamps (drl) module Electronic cluster Engine compartment lamp Engine cooling fan motor Except marauder Floor shifter Front blower motor resistor assembly Front blower motor speed controller Front cigar lighter Front fog lamp cutoff relay Fuel pump relay G100 g103 (at front of right front fender apron) G101 (at rear of left front fender apron) G102 (at front of right front fender apron) G106 (at center rear of engine) G401 (at center of package tray) Grand marquis High mounted stoplamp Horn Ignition transformer capacitor 1 Ignition transformer capacitor 2 Instrument cluster Left front fog lamp Left front park/ turn lamp Left front parking lamp Left headlamp Lighting control module Marauder Mass air flow (maf) sensor Message center switch Natural gas vehicle (ngv) module Nca Oil pressure gauge Pcm power relay Pnk/ Police power relay Power point Powertrain control module (pcm) Right front park/ turn lamp Right front parking lamp Right headlamp Roof opening panel relay S101 (in engine control sensor & fuel charge wiring harness, near breakout to c1026) S107 (in turn lamps wiring harness, in breakout to c1019) S108 (in turn lamps wiring harness, in breakout to c1010) S111 (in dash panel to headlamp junction harness, left rear of engine compartment) S113 (in dash panel to headlamp junction harness, near breakout to c1046) S118 S140 (in dash panel to headlamp junction harness, near breakout to c1026) S158 (in headlamp lead wiring harness, in breakout to c1046) S160 (in engine control sensor & fuel charge wiring harness, near breakout to c1026) S422 (in main body nca Shield Starter relay To s204 (diagram 2 of 3) To s210 (diagram 2 of 3) Voltmeter Windshield washer pump motor Windshield wiper motor Wiring harness, in breakout to g401) Wiring harness, near breakout to floor shifter) Ground Distribution Wiring Diagram (2 of 3) for Mercury Grand Marquis LS 2003 List of elements for Ground Distribution Wiring Diagram (2 of 3) for Mercury Grand Marquis LS 2003: 89 (behind center of dash) (conventional cluster) lighting control module (crown victoria w/ police package) (dlc) (ends in harness) (from diagram 1 of 3) (in main wiring harness, near breakout to adjustable pedal switch) 1 of 3) 4.6l cng A/c Adjustable pedal switch Air suspension module All others Alpine radio Autolamp sensor Brake shift interlock C202b C205a C205b C2131b C2145b C2145c C2220a C2220b C2231b C2232b C2232c C228a C290c C294b C294d C501b C9013b Clock Column) Crown victoria w/ police package, lower option content, 4.6l cng Crown victoria, w/ police package Data link connector Data link connector (dlc) Driver door module Electronic automatic temperature control (eatc) module Engine coolant temperature (ect) sensor Entry From s248 (diagram Front cigar lighter Front police auxiliary junction box Fuel tank unit Function selector switch assembly G201 (behind right kick panel) G202 (behind left kick panel) Gnd Harness, near breakout to autolamp sensor) Ignition switch Instrument cluster Left footwell courtesy lamp Lighting control module M100 radio Main light switch Message center switch Multifunction switch Nca Near breakout to clock) Occupant classification sensor module Overhead console Passive anti-theft transceiver Power point Radio Rear window defrost switch Right footwell courtesy lamp S2006 (near breakout to c299) S203 (near breakout to ignition switch) S207 (in main wiring harness, near breakout to autolamp sensor) S224 S281 (on steering S293 (in main wiring harness, near breakout to function selector switch assembly) Speed control actuator Taxi roof lamp switch Temperature blend door actuator Traction control switch Vaps Variable assist power steering (vaps) module W/ air suspension W/ keyless W/ manual W/ moon roof W/o moon roof Warning buzzer/ chime module Warning lamps module Windshield wiper motor Ground Distribution Wiring Diagram (3 of 3) for Mercury Grand Marquis LS 2003 List of elements for Ground Distribution Wiring Diagram (3 of 3) for Mercury Grand Marquis LS 2003: 92 (behind bottom center of rear seats) rear police auxiliary junction box (in interior lamps wiring harness, in breakout to c327) (in left rear of trunk) emergency flasher relay block (in main body wiring harness, near breakout to c214) (in taillamps wiring harness, in breakout to fuel pump module) (w/ rke) 4.6l 4.6l cng C4170d C4170e C501b C504b C526b C602b C715b C820a C921a C921b Crown victoria w/ police package Driver door module Driver seat lumbar compressor motor Driver side door lock switch Driver side front door ajar switch Driver side front heated seat module Driver side front seat adjust switch Driver side rear door ajar switch Electro- chromatic inside mirror unit Emergency flasher relay 1 Emergency flasher relay 2 Exterior rear view mirror switch Fuel door release solenoid Fuel pump module G200 (behind right kick panel) G400 (at center of luggage compartment) Heated seat module) Interior spot lamp Key pad switch assembly Left exterior rear view mirror Left rear park/ stop/ turn lamp 1 Left rear park/ stop/ turn lamp 2 Left rear police flasher lamp Left rear shock absorber solenoid valve Left rear turn lamp 1 Left rear turn lamp 2 Left reversing lamp Left vanity mirror lamp License lamps Luggage compartment lid release solenoid Luggage compartment lid release switch 1 Map reading lamps Master window adjust switch Nca Overhead console Parking brake switch Passenger seat lumbar compressor motor Passenger side door lock switch Passenger side front door ajar switch Passenger side front heated seat module Passenger side front seat adjust switch Passenger side rear door ajar switch Passenger side seat heater switch Rear interior/ map lamps assembly Right exterior rear view mirror Right rear park/ stop/ turn lamp 1 Right rear park/ stop/ turn lamp 2 Right rear police flasher lamp Right rear shock absorber solenoid valve Right rear turn lamp 1 Right rear turn lamp 2 Right reversing lamp Right vanity mirror lamp Roof opening panel module S208 S238 S303 S403 (in luggage compartment wiring harness, near breakout to c405) S405 (in fuel tank gauge sender wiring harness, near breakout to tank valve 4) S406 (in breakout to c465) S428 (in fuel tank sender wiring harness, in breakout to c421) S431 (in police auxiliary junction box wiring harness, near breakout to c423) S500 (in main body wiring harness, near breakout to exterior rearview mirror switch) S600 (in main body wiring harness, near breakout to passenger side front power window motor) S902 (except base) Shield Tank valve 1 Tank valve 2 Tank valve 3 Tank valve 4 Tank valve 5 W/ air suspension W/ rke W/o rke
HEADLIGHTS Headlamps Wiring Diagram, with DRL for Mercury Grand Marquis LS 2003 List of elements for Headlamps Wiring Diagram, with DRL for Mercury Grand Marquis LS 2003: 88 (behind center of dash) lighting control module (in breakout to instrument cluster) (in right front of engine compt, behind battery) battery junction box (marauder) (near breakout to c1019) s149 (near breakout to ignition switch) Auto Auto lamp delay Auto lamp enable Auto lamp on/off Auto lamp sensor (on upper left side of dash) Bat pwr Battery junction box (in right front of engine compt, behind battery) C202c C205a C2145a C2145b C2145c C220b C220c C2220b Central junction box (below dash, left of steering column) Conventional cluster Daytime running lamps (drl) module (on front of upper radiator support) Dmnd lghtng out Electronic cluster Except police Exterior lights system Fog lamp relay (marauder) Front fog lamp cutoff relay Fuse 10a Fuse 15a Fuse 20a Fuse 25a G102 (at front of right front fender apron) G201 (behind right kick panel) Ground Harness, near breakout to horn) Head Headlamp input Hi beam in Hi beam indicator Hot at all times Hot in run Hot in run or acc Hot in start or run Ign (run) Ign acc or run Ign start or run Illum Instrument cluster Left front fog lamp Left headlamp Lighting control module) s278 Lo beam in Main light switch Main light switch (marauder) Multi- function switch Off Park Park lamp input Pass Police Police, w/ wig-wag Police, w/o wig-wag Power (battery) Power feed Right front fog lamp Right headlamp S112 S112 (others) S113 S113 (others) S119 S120 (near breakout to left left front brake sensor) S158 (crown victoria) S2000 (in main wiring wiring harness, near breakout to clock) S2009 S204 S207 S210 S242 S262 S269 S276 W/o police Wig- wag jumper 1 (on front right side of engine compt) Wig- wag module (in engine compt, on right side front) Headlamps Wiring Diagram, without DRL for Mercury Grand Marquis LS 2003 List of elements for Headlamps Wiring Diagram, without DRL for Mercury Grand Marquis LS 2003: 78 (behind center of dash) lighting control module (in right front of engine compt, behind battery) battery junction box Auto Auto lamp delay Auto lamp enable Auto lamp on/off Auto lamp sensor (on upper left side of dash) B+ (vbat 2) Breakout to lighting control module) s278 C202c C205a C2145a C2145b C2145c C220b C220c C2220b Central junction box (below dash, left of steering column) Conventional cluster Dmnd lghtng out Electronic cluster Exc police Exterior lights system Fog lamp relay (marauder) Front fog lamp cutoff relay (marauder) Fuse 10a Fuse 15a Fuse 25a G102 (at front of right front fender apron) G201 (behind right G201 (behind right kick panel) Head Headlamp input Hi beam indicator Hot at all times Hot in run Hot in run or acc Hot in start or run Ign acc or run Ign start or run Illum Instrument cluster Kick panel) Left front fog lamp Left headlamp Main light switch Main light switch (marauder) Multi- function switch Off Park Park lamp input Pass Police Police, w/ wig-wag Police, w/o wig-wag Power (battery) Power feed Right front fog lamp Right headlamp S112 S113 S113 (others) S120 (near breakout to left front brake sensor) S138 (in dash panel to headlamp junction harness, near breakout to horn) S149 (near breakout to c1019) S158 (crown victoria) S159 (crown (others) S2009 S204 S207 S210 S242 (near breakout to ignition switch) S262 S269 (in main wiring harness, in breakout to instrument cluster) S276 Victoria) Wig- wag jumper 1 (on front right side of eng compt) Wig- wag module (in engine compt, on right side front) Lighting Control Module Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Lighting Control Module Wiring Diagram for Mercury Grand Marquis LS 2003: 68 (electronic cluster) (conventional cluster) All doors lock in Auto lamp sensor (on upper left side of dash) Autolamps on/off Autolmp enab or pwr C2145a C2145b C2145c C220b Central junction box (below dash, left of steering column) Computer data lines system Courtesy lamps out Data link connector Decklid ajar sw Defogger system Demand lighting out Dome lamp sw Door ajar out Door handle sws Door locks system Door locks system Driver door ajar sw Electronic suspension system Engine controls system Except police Exterior lights system Fuse 15a Fuse 25a G201 (behind right kick panel) Ground Hazard warn indic Headlamp sw Headlamps circuit Horn relay out Horns system Hot at all times Hot in run or acc Hot in start or run Instrument cluster Interior lights system Key-in-ignition sw Lighting control module (behind center of dash) Low beams out Panel dim down sw Panic alarm in Parklamp sw Pass door ajar sw Police Power (battery) Power (ignition) Pulse width dim out Rear defog relay Rear defog sw Restrnts cntrl module S2009 S204 S210 s207 S227 S262 S276 S285 Seat belt indic out Tone request Trunk, tailgate, fuel doors system Variable volt dimming Vss + Warning systems Wiper/washer system
HORN Horn Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Horn Wiring Diagram for Mercury Grand Marquis LS 2003: 19 (at front of right front fender apron) (left side of engine compartment) speed control actuator Air bag sliding contact Battery junction box (in right front of engine compt, behind battery) C2145a Cruise control system Fuse 15a G102 Horn Horn relay Horn switch Hot at all times Lighting control module (behind center of dash) Nca S104 S112 S254 (near breakout to air bag sliding contact) W/ steering wheel controls W/o steering wheel controls
INSTRUMENT CLUSTER Analog Cluster Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Analog Cluster Wiring Diagram for Mercury Grand Marquis LS 2003: 97 "anti-lock" "traction control" indicator (6 bulbs) (behind right kick panel) (in dash panel to headlamp junction harness, left rear of engine compt) s124 (in main wiring harness, in breakout to instrument cluster) s202 (near breakout to autolamp sensor) s209 15a Abs control module (on left front of upper radiator support) Acc Air suspension module (behind right side of dash, above glove box) Airbag indicator Anti-slosh module Battery junction box (bjb) (in right front of engine compt, behind battery) Brake ind ctrl Brake fluid level switch (on brake fluid reservoir) Brake indicator C2131a C2145b C2220a C2220b C310b Central junction box (cjb) (below dash, left of steering column) Charge indicator Check fuel cap indicator Check guage Check suspension indicator Clock Ect sensor in Electronic speedometer/ odometer Engine coolant temperature (ect) sensor (on top right front of engine, near fuel injector 1) Engine coolant temperature gauge Exterior lights system Fail-safe cooling Fuel gauge Fuel level in Fuel tank unit Fuse Fuse 10a Fuse 15a Fuse 30a G102 (at front of right front fender apron) G200 (behind right kick panel) G201 G201 (behind right kick panel) Gnd Headlights system Hi beam indicator Hot at all all times Hot at all times Hot in run Hot in run or acc Hot in start or run Ignition switch Illumination lamps Indicator Indicator control Indicator out Indicator output Instrument cluster Interior lights system Left turn indicator Lighting control module (behind center of dash) Lock Low brake fluid level/ park brake Low fuel indicator Low oil pressure guage Malfunction indicator lamp (mil) Mil output Nca Off Oil pressure switch (on lower left side of engine, above oil filter) Over drive cancel Parking brake switch (behind left side of dash, on top of parking brake assembly) Powertrain control module (pcm) (in engine compt, on left side of firewall) Restraints control module (in left front footwell) Right turn indicator Run S100 S112 S124 (in dash panel to headlamp junction harness, left rear of engine compt) S128 S141 (near breakout to c1026) S2009 S204 S207 S210 S227 S231 S276 S500 Safety belt indicator Sound system Start Tcil Traction ind out Voltmeter Electronic Cluster Wiring Diagram (1 of 2) for Mercury Grand Marquis LS 2003 List of elements for Electronic Cluster Wiring Diagram (1 of 2) for Mercury Grand Marquis LS 2003: 83 (in dash panel to headlamp junction harness, near breakout to c1026) s141 (in main wiring harness, in breakout to instrument cluster) s202 (in main wiring harness, on left rear side of engine compartment) (left rear of engine compartment) (on top right front of engine, near fuel injector 1) engine coolant temperature (ect) sensor 10a 15a Abs control module (on left front of upper radiator) Air bag ind in Air susp in Air suspension module (behind right side of dash, above glove box) Battery power C2131a C220a C220b C220c C228b Central junction box (cjb) (below dash, left of steering column) Charge ind in Clock Coolant temp sens in Cylinder head temp Dim display in Door ajar in E/m Electronic automatic temperature control (eatc) module (behind center of dash) English/metric Exterior lights system Exterior litghts system Fasten belts in Fuel flow rate in Fuel level in Fuel tank unit Fuse G102 (at front of right front fender apron) G201 (behind right kick panel) Headlights system Hi beam in Hot at all times Hot in run Hot in run or acc Illumination Ind Instrument cluster Interior lights system Left turn signal Low washer fluid in Lugg compt ajar Malfunction ind Message center switch Nca Oil pres ind in Oil pressure switch (on lower left side of engine, above oil filter) Out Output Pcm Power ground Powertrain control module (pcm) (in engine compt, on left side of firewall) Prndl illum Red Reset Right turn signal S112 S121 S128 S2009 S204 S210 S227 S231 S247 (near breakout to lighting control module) Select Sens ground Sound systems Sound tone output Speed control actuator (left side of engine compartment) Speed control in Starting/charging system Switch assembly in Switched power Trans ctrl ind lt Vehicle speed in + Washer fluid level switch Electronic Cluster Wiring Diagram (2 of 2) for Mercury Grand Marquis LS 2003 List of elements for Electronic Cluster Wiring Diagram (2 of 2) for Mercury Grand Marquis LS 2003: 40 (left side of dash) s282 Ajar lamp output C2145a C2145b C2145c C2212a C2212b C501a C526a C526b C602a C602b C715a C715b C820a C820b Decklid jar Door ajar Door ajar indicator Driver door module (bottom front of left front door) Driver side front door ajar switch Driver side rear door ajar switch Driver's ajar switch G200 (behind right kick panel) Input Lighting control module (behind center of dash) Luggage compartment lid release solenoid Pass ajar switch Passenger side front door ajar switch Passenger side rear door ajar switch S240 (in main wiring harness, near breakout to lighting control module) S259 (in main body wiring harness, near breakout to g200) S277 (in main wiring harness, near breakout to lighting control module) S280 (in main wiring harness, near breakout to c213) S403 S500 S600 Seatbelt ind out Seatbelt switch Tone request Overhead Console Wiring Diagram, with Roof Opening Panel for Mercury Grand Marquis LS 2003 List of elements for Overhead Console Wiring Diagram, with Roof Opening Panel for Mercury Grand Marquis LS 2003: 17 C9013a C9013b Central junction box (cjb) (below dash, left of steering column) Computer data lines system Cruise control system Fuse 15a Fuse 7.5a G201 (behind right kick panel) Headlights system interior lights system Hot at all times Hot in run Interior lights Overhead console Power tops system S2015 S205 S903 Overhead Console Wiring Diagram, without Roof Opening Panel for Mercury Grand Marquis LS 2003 List of elements for Overhead Console Wiring Diagram, without Roof Opening Panel for Mercury Grand Marquis LS 2003: 14 Central junction box (cjb) (below dash, left of steering column) Fuse 15a G200 (behind right kick panel) G201 (behind right kick panel) Headlight system Hot in run Lighting control module (behind center of dash) Overhead console S205 S287 S902 S903 Transmissions system Vpwr
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Courtesy Lamps Wiring Diagram for Mercury Grand Marquis LS 2003: 78 (at front of right front fender apron) g102 (behind right kick panel) g200 (in interior lamps wiring harness, in breakout to c327) (in interior lamps wiring harness, in breakout to c327) s900 (in interior lamps wiring harness, near breakout to c327) (in main body wiring harness, near breakout to c214) s238 (in main body wiring harness, near breakout to g200) s230 (in main body wiring harness, near breakout to temperature blend door actuator) s302 (in main wiring harness, near breakout to lighting control module) s240 (in main wiring harness, near breakout to radio) s236 (in main wiring harness, near breakout to radio) s290 (near breakout to g200) s259 (near breakout to g213) s280 Base vehicle & police Base, police C205b C2145a C2145b C2145c C220a C9013a C9013b Central junction box (below dash, left of steering column) Digital cluster Dimmer Door ajar Driver door module Driver side front door ajar switch Driver side rear door ajar switch Engine compartment lamp Except base vehicle & police Exterior lights system Fuse 15a G201 (behind right kick panel) Glove box lamp Handle sw Hot at all times Instrument cluster Interior Interior spot lamp Left footwell courtesy lamp Left front exterior door handle switch Left vanity mirror lamp Lighting control module (behind center of dash) Luggage compartment lamp Luggage compartment lid release solenoid (on center rear of trunk lid, part of latch assembly) Main light switch Map reading lamps Nca Overhead console Passenger side front door ajar switch Passenger side rear door ajar switch Police Pwr Rear interior/ map lamps assembly (if equipped) Right footwell courtesy lamp Right front exterior door handle switch Right vanity mirror lamp S112 S204 S207 S227 S403 S450 (in breakout to c408) S500 S600 S900 S901 (w/ overhead console & rear map lamps) S902 Taxi Trunk ajar Vbatt Vpwr Vref W/ roof opening panel W/o remote keyless entry W/o roof opening panel Warning system Instrument Illumination Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Instrument Illumination Wiring Diagram for Mercury Grand Marquis LS 2003: 81 (behind right kick panel) (in console panel wiring harness, near breakout to c219) s2008 (in main wiring harness, near breakout to in-vehicle temperature sensor) (near breakout to adjustable pedal switch) s224 Adjustable pedal switch (behind left side of dash) Air bag sliding contact (at base of steering column) Alpine radio Audio/ climate control switch Auto C205a C205b C2145a C2145b C2145c C220b C220c C220c c2220b c2220b C228a C228b C290c C294d C501a C9013a Central junction box (below dash, left of steering column) Dimmer Driver door module (bottom front of left front door) Driver side door lock switch Electronic automatic temperature control (eatc) module (behind center of dash) Electronic marauder conventional Except police Floor shifter Function selector switch assembly Fuse 10a Fuse 15a G200 (behind right kick panel) G201 G201 (behind right kick panel) Head Hot at all times Hot in run Hot in run or run Illumination Instrument cluster Instrument cluster (digital cluster) Interior Key pad switch assembly Lighting control module (behind left side of dash) M100 radio Main light switch Marauder Message center switch (electronic cluster) Nca Off Oil pressure guage Overhead console Park Passenger side door lock switch Police Pwr Radio Rear window defrost switch Red/ S201 (base, taxi) S204 S207 S210 S227 S233 S285 S287 (in main wiring harness, near breakout to electronic automatic temperature control module) S288 S600 Traction control switch (left side of dash) Vbatt Voltmeter Vref W/ center console W/ eatc W/ remote keyless entry W/o eatc W/o remote keyless entry
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 5) for Mercury Grand Marquis LS 2003 List of elements for Power Distribution Wiring Diagram (1 of 5) for Mercury Grand Marquis LS 2003: 69 (in main boby wiring harness, near breakout to g204) s245 (in main body wiring harness, near breakout to c214) s206 (in main wiring harness, on left rear side of engine compartment) (in main wiring harness, on left rear side of engine compt) (in police auxiliary junction box wiring harness, near breakout to c423) s425 (in police auxiliary junction box wiring harness, near breakout to c423) s451 (in police auxiliary junction box wiring harness, near breakout to c423) s452 (in right front of engine compartment, behind battery) battery junction box (bjb) (near breakout to c146) s152 Adjustable pedal switch Air suspension compressor relay Air suspension module Battery Battery junction box (bjb) (in right front of engine compt, behind battery) Bkl/ C2131b C2220a C2231b C2232a C2232b C2232d C4170c C4170d C4170e C4170f C501c Circuit breaker 20a Driver door module Driver side door lock switch Driver side front seat adjust switch Ends in b-pillar harness Ends in harness Engine cooling fan motor Except marauder From a fuse 6 (diagram 1 of 5) Front police auxiliary junction box (crown victoria with police package) (behind center of dash) Fuel door release switch Fuse 20a Fuse 25a Fuse 30a Fuse 50a Generator Instrument cluster Left front lumbar adjust switch Luggage compartment lid release switch 1 Luggage compartment lid release switch 2 Marauder Nca Passenger side door lock switch Passenger side front seat adjust switch Police Police power relay Rear police auxiliary junction box (crown victoria with police package) (behind bottom center of rear seats) Red Right front lumbar adjust switch Roof opening panel relay S100 (in dash panel to headlamp junction harness, near breakout to g102) S114 (in starter motor relay & battery ground harness, near breakout to c146) S2011 S2013 S250 (in main wiring harness, near breakout to lighting control module) S289 Starter motor Tan To fuse 106 (diagram 2 of 5) To fuse 114 (diagram 1 of 5) Variable assist power steering (vaps) module W/ air suspension W/ variable assist power steering (vaps) module Power Distribution Wiring Diagram (2 of 5) for Mercury Grand Marquis LS 2003 List of elements for Power Distribution Wiring Diagram (2 of 5) for Mercury Grand Marquis LS 2003: 57 (behind right kick panel) (in console panel wiring harness, in breakout to power point) s249 (in main body wiring harness, near breakout to g204) s228 (in main wiring harness, near breakout to lighting control module) s227 (in main wiring harness, near breakout to adjustable pedal switch) s285 (in main wiring harness, near breakout to ignition switch) s262 (in main wiring harness, near breakout to left footwell courtesy lamp) s239 (in right front of engine compartment, behind battery) battery junction box (bjb) (in taillamps wiring harness, near breakout to c410) s410 (left side of dash) s282 (m100 radio) (apline radio) Abs control module Alpine radio Autolamp sensor Blower motor relay C202c C2145b C220b C2212b C228a C290c Cd changer Central junction box (cjb) (below dash, left of steering column) Clock Daytime running lamps (drl) module Door ajar indicator Driver side door lock switch Electronic automatic temperature control (eatc) module From circuit breaker (diagram 1 of 5) Front cigar lighter Fuse 15a Fuse 20a Fuse 25a Fuse 40a Fuse 50a G201 Horn relay Instrument cluster Lighting control module Marauder Multi- function switch Passenger side door lock switch Power point Radio Rear window defrost relay S104 (near breakout to g102) S153 (in dash panel to headlamp junction harness, near breakout to battery junction box) S2006 S213 (in main wiring harness, near breakout to c275) S248 Subwoofer amplifier Taxi Taxi roof lamp switch To fuse 101 (diagram 3 of 5) To fuse 3 (diagram 5 of 5) W/ center console W/o center console Power Distribution Wiring Diagram (3 of 5) for Mercury Grand Marquis LS 2003 List of elements for Power Distribution Wiring Diagram (3 of 5) for Mercury Grand Marquis LS 2003: 88 (4.6l cng) (4.6l) (below dash, left of steering column) central junction box (cjb) (conventional) (electronic) (in dash panel to headlamp junction harness, near breakout to g102) s127 (in engine control sensor & fuel charge wiring harness, in breakout to generator) s106 (in main body wiring harness, near breakout to c214) s274 (in main body wiring harness, near breakout to g200) s2003 (in main wiring harness, near breakout to ignition switch) s219 (in main wiring harness, near breakout to lighting control module) s266 (in main wiring harness, on left rear side of engine compt) s231 (marauder) (near breakout to brake pedal position switch) s265 (near breakout to left footwell courtesy lamp) (not used) 4.6l Abs control module Acc Air suspension module Battery junction box (bjb) (in right front of engine compartment, behind battery) Battery junction box (bjb) (in right front of engine compt, behind battery) Brake pedal position switch Brake shift interlock C102a C102c C202a C2131b C220b C220c C2220a C2231b C228a C290c C294c C9013b C930 Daytime running lamps (drl) module Deactivator switch Digital transmission range (dtr) sensor Electro- chromatic inside mirror unit Electronic automatic temperature control (eatc) module Except police Fog lamp relay From fuse 104 (diagram 2 of 5) Front driver side heated seat module Front passenger side heated seat module Function selector switch assembly Fuse 10a Fuse 15a Fuse 20a Fuse 25a Fuse 30a Fuse 50a Fuse 5a Generator Ignition switch Instrument cluster Left stop lamp Lock Multi- function switch Off Overhead console Police Radio Red Red/ Right stop lamp Run S263 S270 (in main wiring harness, near breakout to ignition switch) Start Starter relay Temperature blend door actuator To fuse 5 (diagram 5 of 5) To fuse 7 (diagram 5 of 5) To fuse 8 (diagram 4 of 5) To s225 (diagram 4 of 5) Variable assist power steering (vaps) module W/ air suspension W/ drl W/ eatc W/ manual a/c W/ roof opening panel W/o air suspension W/o roof opening panel Warning buzzer/ chime module Windshield wiper motor Power Distribution Wiring Diagram (4 of 5) for Mercury Grand Marquis LS 2003 List of elements for Power Distribution Wiring Diagram (4 of 5) for Mercury Grand Marquis LS 2003: 85 (below dash, left of steering column) central junction box (cjb) (in console panel wiring harness, near breakout to c219) s2007 (in dash panel to headlamp junction harness, near breakout to c1010) s117 (in engine control sensor & fuel charge wiring harness, near breakout to c1033) s151 (in engine control sensor & fuel charge wiring harness, near breakout to coil on plug 8) s103 (in main body wiring harness, near breakout to g204) s218 (in main wiring harness, near breakout to adjustable pedal switch) s2009 (in main wiring harness, near breakout to autolamp sensor) s276 (in main wiring harness, near breakout to function selector switch assembly) s211 (in main wiring harness, near breakout to ignition switch) s225 (in right front of engine compt, behind battery) battery junction box (bjb) (m100 radio) (alpine radio) 4.6l 4.6l w/ electronic cluster A/c clutch relay Battery junction box (bjb) (in right front of engine compartment, behind battery) Battery junction box (bjb) (in right front of engine compt, behind battery) Blower motor relay C2145a C2145c C2220a C2220b C240 c290c C504b Circuit breaker 20a Clock Coil on plug (cop) 1 Coil on plug (cop) 2 Coil on plug (cop) 3 (4.6l cng) Coil on plug (cop) 3 (4.6l) Coil on plug (cop) 4 (4.6l cng) Coil on plug (cop) 4 (4.6l) Coil on plug (cop) 5 (4.6l cng) Coil on plug (cop) 5 (4.6l) Coil on plug (cop) 6 (4.6l cng) Coil on plug (cop) 6 (4.6l) Coil on plug (cop) 7 Coil on plug (cop) 8 Driver side door lock switch Driver side seat heated Entry Except marauder Except police Floor shifter From ignition switch (diagram 3 of 5) Fuse 15a Fuse 25a Fuse 5a Fuse 7.5a Headlamp junction harness, near breakout to g102) s154 Ignition trans- former capacitor 1 (marauder) Ignition transformer capacitor Ignition transformer capacitor 2 (marauder) Instrument cluster Instrument cluster (conventional) Lighting control module Luggage compart- ment lid release switch 1 Luggage compart- ment lid release switch 3 Marauder Master window adjust switch Nca Oil pressure gauge Overdrive cancel switch Passenger side door lock switch Passenger side seat heated Passive anti-theft transceiver Pcm power diode Pcm power relay Police Police power relay Radio Red/ (in main wiring harness, on left rear side of engine compt) s223 Roof opening panel relay S288 (near breakout to g200) Speed control actuator Switch To fuse 4 (diagram 5 of 5) Traction control indicator relay Voltmeter W/ center console W/ eatc W/ keyless W/o keyless Warning lamps module Windshield wiper motor Power Distribution Wiring Diagram (5 of 5) for Mercury Grand Marquis LS 2003 List of elements for Power Distribution Wiring Diagram (5 of 5) for Mercury Grand Marquis LS 2003: 57 (behind right kick panel) (below dash, left of (diagram 2 of 5) (in breakout to radio) s201 (in dash panel to headlamp junction harness, near breakout to left front brake sensor) s115 (in main body wiring harness, near breakout to air suspension module) s246 (in main body wiring harness, near breakout to c213) s2015 (in main body wiring harness, near breakout to temperature blend door actuator) s229 (in right front of engine 4.6l cng Base vehicle, taxi Battery junction box (bjb) (in right front of engine compartment, behind battery) C2232a C310b C4170c C501a C9013b Compartment, behind battery) battery junction box (bjb) Data link connector (dlc) Driver door module Emergency flasher relay 1 Emergency flasher relay 2 Emergency flasher relay block (in left rear of trunk) Entry Exterior rear view mirror switch From fuse 25 m From fuse 3 s (diagram 3 of 5) From fuse 8 (diagram 4 of 5) From fuse 9 (diagram 3 of 5) Front police auxiliary junction box Fuel pump relay Fuse 10a Fuse 20a Fuse 25a Fuse 30a Fuse 7.5a G201 Natural gas vehicle (ngv) module Occupant classification sensor module Others Overhead console Pcm power relay Police Power point Powertrain control module (pcm) Radio Rear flasher relay Rear police auxiliary junction box Restraints control module S2006 S2012 (in main wiring harness, near breakout to left footwell courtesy lamp) S248 Steering column) central junction box (cjb) W/ center console W/ keyless W/ police W/o center console
POWER DOOR LOCKS Power Door Locks Wiring Diagram, with Keyless Entry for Mercury Grand Marquis LS 2003 List of elements for Power Door Locks Wiring Diagram, with Keyless Entry for Mercury Grand Marquis LS 2003: 74 (behind right kick panel) (near breakout to lighting control module) (near breakout to c214) (near breakout to fuel door release switch) (near breakout to left exterior rearview mirror) s506 1/2 3/4 5/6 7/8 9/0 Battery junction box (bjb) (in right front of engine compt, behind battery) C2145a C2145b C220b C501a C501b C501c Central junction box (cjb) (below dash, left of steering column) Door ajar Door lock Driver door module (bottom front of left front door) Driver side door lock switch Electronic cluster Fuse 10a Fuse 15a Fuse 20a G200 G200 (behind right kick panel) Hndl sw sig rtn c2145c Hot at all times Hot in run or acc Hot in start Illumination Instrument cluster Key pad illum Key pad sw a Key pad sw b Key pad sw c Key pad switch assembly Left front door lock actuator Left front exterior door handle switch Left rear door lock actuator Lighting control module (behind center of dash) Lock Luggage compartment lid release solenoid Luggage compt lid release switch 1 Nca Passenger side door lock actuator Passenger side door lock switch Pwr Right front exterior door handle switch Right rear door lock actuator S201 (base,taxi) S208 S228 S235 (near breakout to g204) S238 S260 (near breakout to g204) S261 (near breakout to g200) S277 S288 S403 S500 S501 S510 (near breakout to exterior rearview mirror switch) S600 Sig rtn Start input Trunk lid Unlock Vbatt Vpwr Vref dr handle Vref out Power Door Locks Wiring Diagram, without Keyless Entry for Mercury Grand Marquis LS 2003 List of elements for Power Door Locks Wiring Diagram, without Keyless Entry for Mercury Grand Marquis LS 2003: 23 (near breakout to g200) s261 (near breakout to g204) s260 Battery junction box (bjb) (in right front of engine compt, behind battery) Central junction box (cjb) (below dash, left of steering column) Circuit breaker 602 20a Driver side door lock switch Fuse 15a G200 (behind right kick panel) Hot at all times Hot in run or acc Illumination Left front door lock actuator Left rear door lock actuator Lock Passenger side door lock actuator Passenger side door lock switch Right rear door lock actuator S208 S245 S288 S500 S600 Unlock
POWER MIRRORS Electronic Day/Night Mirror Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Electronic Day/Night Mirror Wiring Diagram for Mercury Grand Marquis LS 2003: 15 (in main body wiring harness, near breakout to c213) Central junction box (cjb) (below dash, left of steering column) Digital transmission range (dtr) sensor (on left side of transmission) Electrochromatic inside mirror unit Exterior lights system Fuse 15a G200 (behind right kick panel) Ground Hot in run S119 (w/ drl) S215 S266 S902 S903 Vpwr Power Mirrors Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Power Mirrors Wiring Diagram for Mercury Grand Marquis LS 2003: 20 Central junction box (cjb) (below dash, left of steering column) Defogger system Down Exterior rear view mirror switch Fuse 7.5a G200 (behind right kick panel) Hot at all times Left Left exterior rear view mirror Left/ right Left/ right m Mirror select Nca Red Right Right exterior rear view mirror S2015 S500 S503 (in main body wiring harness, in breakout to exterior rearview mirror switch) Up/ down m
POWER SEATS Adjustable Pedal Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Adjustable Pedal Wiring Diagram for Mercury Grand Marquis LS 2003: 14 (police) (except police) Adjustable pedal motor (below left side of dash) Adjustable pedal switch (behind left side of dash) Battery junction box (in right front of engine compt, behind battery) Circuit breaker 20a Fwd G201 (behind right kick panel) Hot at all times Interior lights system Nca Red Rwd S207 S250 s245 Driver Power Seat Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Driver Power Seat Wiring Diagram for Mercury Grand Marquis LS 2003: 16 Backrest of seat Battery junction box (in right front of engine compt, behind battery) Circuit breaker 20a Driver seat backrest motor Driver side front seat adjust switch Entire seat Front of seat Fwd G200 (behind right kick panel) Hot at all times Left power seat motor assembly Nca Rear of seat Rwd S245 S500 Heated Seats Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Heated Seats Wiring Diagram for Mercury Grand Marquis LS 2003: 27 (behind right kick panel) g200 Battery junction box (in right front of engine compartment, behind battery) Central junction box (below dash, left of steering column) Driver side front heated seat module Driver side seat heater switch Fuse 15a Fuse 25a G200 (behind right kick panel) High ind Hot at all times Hot in run Hot in run or acc Left front seat cushion heater Low Low ind Nca Panel illum Passenger side front heated seat module Passenger side seat heater switch Red Right front seat cushion heater S2003 S208 S238 S274 S288 S305 Lumbar Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Lumbar Wiring Diagram for Mercury Grand Marquis LS 2003: 16 Battery junction box (in right front of engine compt, behind battery) Circuit breaker 20a Driver seat lumbar compressor motor (under left front seat) G200 (behind right kick panel) Hot at all times Left front lumbar adjust switch Passenger seat lumbar compressor motor (under right front seat) Pnk Right front lumbar adjust switch S208 S245 S300 (in power seats harness, under driver seat) S305 S310 (in power seats harness, near breakout to right front lumbar adjust switch) pnk W/ heated seats W/o heated seats Passenger Power Seat Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Passenger Power Seat Wiring Diagram for Mercury Grand Marquis LS 2003: 16 Backrest of seat Battery junction box (in right front of engine compt, behind battery) Circuit breaker 20a Entire seat Front of seat Fwd G200 (behind right kick panel) Hot at all times Nca Passenger seat backrest motor Passenger side front seat adjust switch Rear of seat Right power seat motor assembly Rwd S245 S600
POWER TOP/SUNROOF Power Top/Sunroof Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Power Top/Sunroof Wiring Diagram for Mercury Grand Marquis LS 2003: 26 1) close/ tilt up 2) close/ tilt down Battery junction box (in right front of engine compt, behind battery) C9013b C921a C921b Central junction box (below dash, left of steering column) Fuse 15a Fuse 25a G102 (at front of right front fender apron) G200 (behind right kick panel) Hot at all times Hot in run or acc Limit switches Nca Overhead console Red Roof opening panel module Roof opening panel motor assembly Roof opening panel relay S113 S122 S238 S902 Tan/red Vpwr
POWER WINDOWS Power Windows Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Power Windows Wiring Diagram for Mercury Grand Marquis LS 2003: 25 (in main body wiring harness, near breakout to brake pedal position switch) s264 C504a C504b Central junction box (cjb) (below dash, left of steering column) Circuit breaker 20a Driver Driver side front power window motor G200 (behind right kick panel) Hot in run or acc Left rear Left rear power window motor Left rear window adjust switch Lock Master window adjust switch One- touch down One-touch down relay Passenger Passenger side front power window motor Passenger side front power window switch Right rear Right rear power window motor Right rear window adjust switch S218 (police) S500 Vbatt
RADIO Base Radio Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Base Radio Wiring Diagram for Mercury Grand Marquis LS 2003: 34 (behind right kick panel) g201 Antenna Central junction box (cjb) (below dash, left of steering column) Clock Clock signal Fuse 10a Fuse 15a Fuse 5a Fused ignition G201 (behind right kick panel) Ground Hot at all times Hot in run Hot in run or acc Illum power Interior lights system L front spkr (+) L front spkr (-) L rear spkr (+) L rear spkr (-) Left front speaker Left rear speaker Nca Power R front spkr (+) R front spkr (-) R rear spkr (+) R rear spkr (-) Radio Right front speaker Right rear speaker S201 S204 Vpwr Premium Sound Radio Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Premium Sound Radio Wiring Diagram for Mercury Grand Marquis LS 2003: 81 (5) phone (6) mode (7) seek up (8) seek down (9) volume up (10) volume down (in breakout to c211) (in breakout to c212) (in breakout to compact disc changer) (in breakout to radio) (in trunk, under rear package tray) subwoofer amplifier (near breakout to lighting control module) s247 (near breakout to speed control actuator) Air bag sliding contact Antenna Audio (+) Audio (-) Audio mute Audio network Audio shield Audio system on Audio/climate control switch Battery junction box (in right front of engine compt, behind battery) C290a C290b C290c Cd changer Cd left sig in Cd left sig out Cd right sig in Cd right sig out Central junction box (cjb) (below dash, left of steering column) Clock Clock signal Fuse 15a Fuse 25a Fuse 5a Fused ignition G201 (behind right kick panel) G402 (behind center of rear seats) G404 (behind center of rear seats) Ground Hot at all times Hot in run or acc Illum power Interior lights system L front spkr (+) L front spkr (-) L rear spkr (+) L rear spkr (-) Left front speaker Left rear speaker Nca Power Powertrain control module (pcm) (in engine compt, on left side of firewall) R front spkr (+) R front spkr (-) R rear spkr (+) R rear spkr (-) Radio Right front speaker Right rear speaker Rx sig S129 S2002 S204 S213 S220 S222 S232 S255 S275 S284 S410 (near breakout to c410) S423 S446 S447 Shield Speed control actuator (left side of engine compt) Subwoofer mute Tan Tx sig Vpwr Vss (+) Vss(+) Warning, exterior lights systems
SHIFT INTERLOCK Shift Interlock Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Shift Interlock Wiring Diagram for Mercury Grand Marquis LS 2003: 14 (w/ police package, lower option content, 4.6l cng) (all others) Brake pedal position switch (top of brake pedal support) Brake shift interlock (on steering column) Central junction box (below dash, left of steering column) Fuse 15a Fuse 20a G201 (behind right kick panel) Hot at all times Hot in run S203 s207 S265 S266 S283 Solid state
STARTING/CHARGING Charging Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Charging Wiring Diagram for Mercury Grand Marquis LS 2003: 29 (analog cluster) (electronic (in engine compt, on left side of firewall) (marauder) (not used) 4.6l Battery Battery junction box (bjb) (in right front of engine compt, behind battery) C220c C2220a Central junction box (cjb) (below dash, left of steering column) Charge indicator (except electronic cluster) Cluster) Fuse 10a Fuse 30a G100 (at front of right front fender apron) G103 (at front of right front fender apron) Generator Hot in run Instrument cluster Powertrain control module (pcm) Red S114 S127 S152 S155 (in dash panel to headlamp junction harness, left rear of engine compt) S231 Starter motor Starting circuit Starting Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Starting Wiring Diagram for Mercury Grand Marquis LS 2003: 30 (in engine compt, Acc Battery Battery junction box (bjb) (in right front of engine compt, behind battery) Central junction box (cjb) (below dash, left of steering column) Charging circuit Control Digital transmission range (dtr) sensor (on left side of transmission) Except police package & 4.6l ngv Fuse 30a Fuse 5a G100 (at front of right front fender apron) G102 (at front of right front fender apron) G103 (at front of right front fender apron) Ignition switch Lock Module (pcm) Of firewall) Off On left side Police package & 4.6l ngv Powertrain Red Run S113 S127 Sta Start Starter motor Starter relay
SUPPLEMENTAL RESTRAINTS Supplemental Restraints Wiring Diagram (1 of 2) for Mercury Grand Marquis LS 2003 List of elements for Supplemental Restraints Wiring Diagram (1 of 2) for Mercury Grand Marquis LS 2003: 61 (behind right kick panel) g200 (in main body wiring harn, near breakout to left side air bag sensor) (in seat belt buckle switch) (others) (w/ heated seat) Air bag ind ctrl Air bag tone driver C2145a C310a C310b Central junction box (below dash left of steering column) Crash sensor feed Crash sensor return Data link connector (dlc) (partial) (behind left side of dash) Driver air bag feed Driver air bag rtn Driver safety belt buckle switch (in seat belt buckle switch) Driver safety belt retractor pretensioner Fuse f2.4 10a G204 (behind left kick panel) Ground Horizontal sense Hot in run or start Ignition Iso bus L air bag mod feed L air bag mod rtn L air bag sens feed L air bag sens rtn Left seat track position sensor (near left "b" pillar) Left side air bag module Lighting control module (behind center of dash) Nca Occupant classification sensor module (under passenger seat) Pass air bag feed Pass air bag return Pass air bag rtn Passenger safety belt buckle switch Passenger safety belt retractor pretensioner Pin shorting bars engaged when module connector is disconnected from harness Pretensioner feed Pretensioner return R air bag mod feed R air bag mod rtn R air bag sens feed R air bag sens rtn Red Restraints control module (in left front footwell) Right side air bag module Right side air bag sensor S205 S214 S229 S241 (in main body wiring harn, near breakout to g204) S301 (in power seat harn, in breakout to c311) Safety belt input Seat pressure sensor (below passenger seat) Seat track return Seat weight feed Seat weight return Shorting bar Supplemental Restraints Wiring Diagram (2 of 2) for Mercury Grand Marquis LS 2003 List of elements for Supplemental Restraints Wiring Diagram (2 of 2) for Mercury Grand Marquis LS 2003: 29 (analog) (analog) (digital) (digital) Accessory feed instrument cluster Air bag indicator Air bag sliding contact (at base of steering column) C1009 C2220a C2220b C2222 Central junction box (below dash left of steering column) Driver air bag unit Front crash sensor (on left front side of upper radiator support) Fuse f2.6 15a Gas Hot in run or start Instrument cluster power Instrument cluster warning lamps module Left side air bag sensor Natural gas vehicle (ngv) module (on front of radiator support) Nca Ngv Ngv analog cluster Passenger air bag module S276 S299 (in main wiring harn, near breakout to lighting control module) Shorting bar Stage 1 Stage 2
TRANSMISSION A/T Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for A/T Wiring Diagram for Mercury Grand Marquis LS 2003: 82 (behind air cleaner assembly) mass air- flow (maf) sensor (engine ctrl harn, near coil on plug 4 breakout) (left rear of engine compt) (left side of engine compt) (left side of trans) (left side of trans- mission) output shaft speed (oss) sensor (left side of transmission) digital transmission range sensor (near c1047 breakout) (rear of left front fender apron) g101 4r70w transmission Analog Battery junction box (behind battery Bpp switch Brake pedal position (bpp) switch (top of brake pedal support) C220b Central junction box (left of steering column) Central junction box (left of steering column) Data link + Data link - Data link connector (partial) (behind left side of dash) Data link power Digital Elect press Electronic pressure control solenoid Engine controls system Floor shifter (w/ center console) Fuse 15a Fuse 20a Fuse 25a Fuse 30a G101 (rear of left front fender Ground Hot at all times Hot in run or start Ignition power Instrument cluster Intake air temp Maf return Maf sensor sig Marauder Output shaft Overdrive cancel indicator Overdrive cancel switch (w/o center console) Pcm power diode Pcm power relay Powertrain control module (pcm) (left side of firewall) R p Red Ref votage S109 S110 S115 S117 S118 S123 (near c1033 breakout) S126 S130 S135 S146 S147 S265 S283 Shift sol a Shift sol b Shift solenoids Signal control Speed control actuator Ss a Ss b Tci lamp Throttle position (tp) sensor (left side of throtle body) Torque conv Torque converter clutch (tcc) solenoid Tps signal Tr1 Tr2 Tr3 Tr4 Trans cntrl sw Trans temp Transmission fluid temperature sensor Vss signal (+)
TRUNK, TAILGATE, FUEL DOOR Fuel Door Release Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Fuel Door Release Wiring Diagram for Mercury Grand Marquis LS 2003: 8 Battery junction box (in right front of engine compt, behind battery) Circuit breaker 20a Fuel door release solenoid (in left side of trunk) Fuel door release switch G200 (behind right kick panel) Hot at all times S245 S500 Trunk Release Wiring Diagram, with Keyless Entry for Mercury Grand Marquis LS 2003 List of elements for Trunk Release Wiring Diagram, with Keyless Entry for Mercury Grand Marquis LS 2003: 28 (behind right kick panel) g200 (near breakout to lighting control module) s240 Battery junction box (in right front of engine compt, behind battery) C2145a C2145c C220a C501b C501c Decklid ajar switch Demand lighting output Digital cluster Driver door module (bottom front of left front door) Fuse 20a G200 (behind right kick panel) Hot at all times Instrument cluster Lighting control module (behind center of dash) Luggage compartment lamp Luggage compartment lid release solenoid Luggage compartment lid release switch 1 Pnk/ Release out Release sw S230 (near breakout to g200) S403 S500 S506 (near breakout to left exterior rearview mirror) Trunk ajar input Trunk Release Wiring Diagram, without Keyless Entry for Mercury Grand Marquis LS 2003 List of elements for Trunk Release Wiring Diagram, without Keyless Entry for Mercury Grand Marquis LS 2003: 22 Battery junction box (in right front of engine compt, behind battery) C2145a C2145c C220a Circuit breaker 20a Decklid ajar switch Demand lighting output Digital cluster G200 (behind right kick panel) Hot at all times Instrument cluster Lighting control module (behind center of dash) Luggage compartment lamp Luggage compartment lid release solenoid Luggage compartment lid release switch 1 Pnk/ S230 (in main body wiring harness, near breakout to g200) S240 (in main wiring harness, near breakout to lighting control module) S245 S403 Seats system Trunk ajar input
WARNING SYSTEMS Warning Systems Wiring Diagram, with Analog Cluster for Mercury Grand Marquis LS 2003 List of elements for Warning Systems Wiring Diagram, with Analog Cluster for Mercury Grand Marquis LS 2003: 72 (behind right kick panel) g200 (in breakout to c311) s301 (near breakout to g200) s259 (near breakout to lighting control module) s247 (taxi) Air bag sliding contact C2145a C2145b C2145c C2212a C2212b C2220a C2220b C310a C310b C501b C526a C526b C602a C602b C715a C715b C820a C820b Central junction box (behind dash, left of steering column) Crown victoria/grand marquis Demand lt out Dimming output Door ajar indi- cator (taxi) Driver door module (bottom front of left front door) Driver safety belt buckle switch (in driver front seat belt buckle) Driver side front door ajar switch Driver side rear door ajar switch Driver's ajar sw Engine controls system Flasher pwr in Fuse 15a G201 (behind right kick panel) Hot at all times Hot in run Hot in run or acc Hot in start or run Ignition Ignition key switch Instrument cluster Key in Left seat track position sensor (below driver deat) Lighting control module (behind center of dash) Marauder Nca Parklamp output Pass ajar sw Passenger safety belt buckle switch (in passenger front seat belt buckle) Passenger side front door ajar switch Passenger side rear door ajar switch Restraints control module (in left front footwell) S2009 S204 S207 S208 S214 (near breakout to left side air bag sensor) S227 S266 S276 S280 (in main wiring harness, near breakout to c213) S282 S285 S500 S600 Seatbelt sw W/ steering wheel controls w/o steering wheel controls Warning buzzer/ chime module (behind center of dash) Warning Systems Wiring Diagram, with Digital Cluster for Mercury Grand Marquis LS 2003 List of elements for Warning Systems Wiring Diagram, with Digital Cluster for Mercury Grand Marquis LS 2003: 98 (at front of right front fender apron) g102 (behind right kick panel) g200 (in breakout to c311) s301 (in main wiring harness, near breakout to autolamp sensor) s209 (in main wiring harness, near breakout to c213) s280 (near breakout to air bag sliding (near breakout to g200) s259 (near breakout to lighting control module) (taxi) Abs Abs control module (on left front of upper radiator support) Acc Air bag Air bag sliding contact Brake fluid level switch (on brake fluid reservoir) C2145a C2145b C2145c C220b C220c C2212a C2212b C310a C310b C501b C526a C526b C602a C602b C715a C715b C820a C820b Central junction box (behind dash, left of steering column) Contact) Demand lt out Dimming output Door ajar indi- cator (taxi) Driver door module (bottom front of left front door) Driver safety belt buckle switch (in driver front seat belt buckle) Driver side front door ajar switch Driver side rear door ajar switch Driver's ajar sw Engine controls system Flasher pwr in Fuse 15a G200 (behind right kick panel) G201 (behind right kick panel) Gnd Ground Hazard Hazard ind Hot at all times Hot in run Hot in run or acc Hot in start or run Ignition Ignition key switch Ignition switch Instrument cluster Key in Left seat track position sensor (below driver deat) Lighting control module (behind center of dash) Lock Low brake level Nca Off Parking brake switch (behind left side of dash, on top of parking brake assembly) Parklamp output Pass ajar sw Passenger safety belt buckle switch (in passenger front seat belt buckle) Passenger side front door ajar switch Passenger side rear door ajar switch Restraints control module (in left front footwell) Run S112 S124 (left rear of engine compt) S2009 S204 S207 S208 S210 S214 (near breakout to left side air bag sensor) S227 S237 S247 S266 S276 S282 S285 S500 S600 Seatbelt sw Start Tone req W/ steering wheel controls w/o steering wheel controls Warning buzzer/ chime module (behind center of dash) Warning lamps module
WIPER/WASHER Wiper/Washer Wiring Diagram for Mercury Grand Marquis LS 2003 List of elements for Wiper/Washer Wiring Diagram for Mercury Grand Marquis LS 2003: 23 (behind center of dash) lighting control module (behind right kick panel) g201 (in washer fluid reservoir) windshield washer pump (near breakout to brake fluid level switch) s139 21. interval 1 22. interval 2 23. interval 3 24. interval 4 25. interval 5 Battery junction box (bjb) (in right front of engine compt, behind battery) C202b C2145c Central junction box (cjb) (below dash, left of steering column) Fuse 30a Fuse 7.5a G201 (behind right kick panel) Hot at all times Hot in run or acc Multi-function switch 0. off 2. low 1. high Red S112 S128 S137 (near breakout to brake fluid level switch) S207 Wash switch Washer fluid level switch (electronic cluster) Windshield wiper motor (on left side rear of engine compartment)
