ENGINE PERFORMANCE – Mercury Grand Marquis LSE 2002 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.6L

4.6L, Engine Performance Wiring Diagrams (1 of 4) for Mercury Grand Marquis LSE 2002

List of elements for 4.6L, Engine Performance Wiring Diagrams (1 of 4) for Mercury Grand Marquis LSE 2002:

• (behind right kick panel) g201
• (near breakout to ground at center rear of engine)
• (rear of left front fender apron)
• 5 pass
• 6 pass
• A/c cutout
• A/c system (a/c cutout sw)
• Battery junction box (right front of engine compt)
• Case gnd
• Central junction box (below dash, left of steering column)
• Ckp (+)
• Ckp (-)
• Coil 1
• Coil 3
• Coil 4
• Coil 5
• Coil 6
• Cooling fans (fan high rly)
• Cooling fans (fan low relay)
• Crankshaft position sensor (lower right front of engine)
• Crankshaft position sensor shield
• Cyl temp ind
• Data link (+)
• Data link (-)
• Data link connector (dlc) (behind left side of dash)
• Ect ind
• Egr vac reg
• Egr vacuum regulator solenoid valve (top center rear of engine)
• Eprom
• Fan high rly
• Fan low rly
• Floor shifter
• Fuel flow
• Fuel gauge
• Fuel pump
• Fuse 15a
• Fuse 25a
• Fuse 30a
• G101
• G101 (rear of left front fender apron)
• Hot at all times
• Hot in run or start
• Iat sens
• Ignition coils
• Ignition transformer capacitor (left front of engine, left side of left ignition coil)
• Instrument cluster
• Intake air temperature sensor (left front of engine compt)
• Maf sig rtn
• Mil
• Nca
• Overdrive cancel switch
• Pcm power diode
• Pcm power relay
• Powertrain control module (pcm) (in engine compt, on left side of firewall)
• Pwr gnd
• Red
• Relay center (left side of engine compt)
• Rt ho2s 12
• S100
• S103
• S119
• S134
• S135 (near breakout to front crash sensor)
• S151
• S152
• S223
• S276
• Shft sol a
• Shft sol b
• Tcil
• To fuel injector 8)
• Tr1
• Tr2
• Tr4
• Trans ctrl sw
• Trans temp
• Vss (-)

4.6L, Engine Performance Wiring Diagrams (2 of 4) for Mercury Grand Marquis LSE 2002

List of elements for 4.6L, Engine Performance Wiring Diagrams (2 of 4) for Mercury Grand Marquis LSE 2002:

• (near breakout to right heated oxygen sensor 11)
• (speedometer/ odometer) vehicle speed input
• 4r70w transmission
• Analog
• C220a
• C220b
• C220c
• Cylinder head temp input
• Differential pressure feedback egr sensor (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 engine)
• Fuel flow rate input
• G101 (rear of left front fender apron)
• G201 (behind right kick panel)
• Instrument cluster
• Malfunction indicator input
• Mass air- flow sensor (behind air cleaner assembly)
• R n
• Red
• S105
• S119
• S126
• S150
• S222 (near breakout to inst cluster)
• Shift solenoids
• Ssa
• Ssb
• Throttle position sensor (left side of throttle body)
• Torque converter clutch solenoid
• Transmission control indicator input
• Transmission fluid temperature sensor
• Vapor management valve (rear center of engine compt)

4.6L, Engine Performance Wiring Diagrams (3 of 4) for Mercury Grand Marquis LSE 2002

List of elements for 4.6L, Engine Performance Wiring Diagrams (3 of 4) for Mercury Grand Marquis LSE 2002:

• (center rear of trunk) g400
• (in trunk, on left support) inertia fuel shutoff switch
• (near breakout to 12-pin conn at left rear of engine compt)
• (near breakout to 8-pin conn left rear of engine)
• (near left rear of engine compt)
• (near left rear of engine compt) s148
• (top of brake pedal support) brake pedal position switch
• Air conditioning (a/c clutch relay)
• Battery junction box (right front of engine compt)
• Camshaft position sensor (left front of engine, below left ignition coil)
• Central junction box (below dash, left of steering column)
• Cooling fans (fan high low relays)
• Cylinder head temperature sensor (top left front of engine)
• Fuel pump relay
• Fuel pump/ fuel gauge sender
• Fuel tank assembly
• Fuel tank pressure sensor (on upper fuel tank assembly)
• Fuse 15a
• Fuse 20a
• Hot at all times
• Left heated oxygen sensor 21 (lower left rear of engine, in exhaust manifold)
• Left heated oxygen sensor 22 (in exhaust, rear of catalyst)
• Nca
• Output shaft speed sensor (left rear side of transmission)
• Red
• Red/pnk
• Relay center (left side of engine compt)
• Right heated oxygen sensor 11 (lower right rear of engine, in exhaust manifold)
• Right heated oxygen sensor 12 (in exhaust, rear of catalyst)
• S115 (near breakout to 16-pin conn at left rear of engine compt)
• S123
• S125
• S129
• S130
• S132
• S147
• S265
• S402

4.6L, Engine Performance Wiring Diagrams (4 of 4) for Mercury Grand Marquis LSE 2002

List of elements for 4.6L, Engine Performance Wiring Diagrams (4 of 4) for Mercury Grand Marquis LSE 2002:

• (behind right side of dash) air suspension module
• (behind right side of dash) electronic variable orifice steering module
• (behind right side of dash) warning buzzer/ chime module
• (left rear corner of engine compt) speed control actuator
• (left rear side of transmission) vehicle speed sensor
• (near breakout to 42-pin conn at left rear of eng compt)
• (near ground at center rear of engine)
• (rear of vehicle, below left side of trunk) evap canister vent valve
• A/c cutout sw
• A/c system (a/c clutch sw)
• A/c system (a/c cutout rly)
• A/c wot cutout
• Batt
• Brake on/off
• C122
• C2131b
• C2156
• C2230
• Cam pos in
• Can vent sol
• Cht sensor
• Coil 2
• Coil 7
• Coil 8
• Dpfe sens
• Epc sol
• 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)
• Heater ctrl
• Iac sol
• Idle air control valve (left side of intake manifold)
• L ho2s
• Lft ho2s 21
• Lft ho2s 22
• Maf sens in
• Oss (+)
• Power
• Power gnd
• Powertrain control module (pcm) (in engine compt, on left side of firewall)
• Pwr gnd
• R ho2s
• Red
• Red/pnk
• Ref volt
• Rt ho2s 11
• S105
• S109 (near breakout to 12-pin conn at left rear of engine compt)
• S119
• S131
• S143
• S247 (near breakout to front control unit)
• Sig rtn
• Tan
• Tan/red
• Tcc sol
• Tp sens in
• Tr3
• Vss (+)
• Vss (-)
• W/ air suspension & evo steering
• W/ evo steering only