ENGINE PERFORMANCE – Mercury Mountaineer 1997 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

5.0L

5.0L, Engine Performance Wiring Diagrams (1 of 4) for Mercury Mountaineer 1997

List of elements for 5.0L, Engine Performance Wiring Diagrams (1 of 4) for Mercury Mountaineer 1997:

• (75 mm from branch to wot a/c relay)
• (left front of engine compt., near radiator) g100
• (near breakout for injector 3)
• (right kick panel)
• A/c hi press
• Air conditioning system (wot a/c relay)
• Air susp input
• Case gnd
• Ckp sensor (+)
• Ckp sensor (-)
• Crankshaft position sensor (lower front of engine)
• Crankshaft position sensor shield
• Data link
• Data link (+)
• Data link (-)
• Data link connector (behind left side of i/p)
• Digital transmission range sensor (dtr sensor) (left side of transmission)
• Ect sens
• Electronic suspension system
• Evr ctrl
• Fuel flow rate
• Fuel level in
• Fuel pump mon
• Fuse 10a
• Fuse 25a
• Fuse 30a
• G100 (left front of engine compt. near radiator)
• G104 (left rear corner of engine compt., at fender apron)
• G203
• G203 (right kick panel)
• Ho2s 3 sig
• Hot at all times
• Hot in run
• Hot in run or start
• Iat sens
• Ign coil 1
• Ign coil 2
• Ignition coils 1 & 2
• Ignition coils 3 & 4
• Instrument cluster system
• Interior fuse panel
• Maf sig rtn
• Mil
• Octane adjust
• Pcm power diode
• Pcm power relay
• Power distribution box
• Powertrain control module (right side of engine compt)
• Pwr gnd
• R n
• Radio noise capacitor (left of ignition coil)
• Red
• S105
• S108
• S116
• S118
• S128
• S157
• S162
• Shift sol 1
• Shift sol 2
• Spark plugs
• Tachometer
• Tachometer data link connector (near blower motor)
• To dtr sensor (diagram 4 of 4)
• Tr1
• Tr2a
• Tr4a
• Trans ctrl sw
• Trans temp
• Transmission control switch
• Vss (-)/gnd

5.0L, Engine Performance Wiring Diagrams (2 of 4) for Mercury Mountaineer 1997

List of elements for 5.0L, Engine Performance Wiring Diagrams (2 of 4) for Mercury Mountaineer 1997:

• (100 mm from breakout for throttle position sensor)
• (behind right kick panel) inertia fuel shut-off switch
• (near breakout for injector 6)
• (speedometer/ odometer) vehicle speed input
• 1997.25
• C2008
• C2009
• C286
• C287
• Differential pressure feedback egr sensor (rear of engine compt.)
• Egr valve position sensor (right rear of engine)
• Engine coolant temperature sensor (top front of engine)
• Fuel flow rate input
• Fuel pump
• Fuel pump relay
• Fuel reset switch indicator input
• Fuel tank assembly
• Fuse 20a
• G200 (left kick panel)
• Hot at all times
• Instrument cluster
• Intake air temperature sensor (downstream of cleaner assembly)
• Malfunction indicator input
• Message center
• Nca
• Octane adjust (shorting bar) (top left front of engine compt.)
• Output shaft speed sensor (left rear of transmission)
• Power distribution box
• Pressure transducer
• Red
• Red/pnk
• Remote anti-theft personality module
• S106 (in breakout for powertrain control module)
• S146
• S166
• S235
• S275
• Tach input
• Tachometer input
• Throttle position sensor (on throttle body)
• Transmission control indicator input

5.0L, Engine Performance Wiring Diagrams (3 of 4) for Mercury Mountaineer 1997

List of elements for 5.0L, Engine Performance Wiring Diagrams (3 of 4) for Mercury Mountaineer 1997:

• (135 mm from branch to fuel pump relay)
• (30 mm from branch to fuel injector 4)
• (center of i/p) generic electronic module
• (in breakout for powertrain control module)
• (near breakout for fuel injector 7
• (near breakout to fuel injector 6)
• (near rear view mirror) compass/ outside air temperature module
• (right rear of engine compt.) speed control servo/ amplifier assembly
• (transmission) vehicle speed sensor
• 4r70w transmission
• Air conditioning system (wot a/c relay)
• C2008
• C283
• Canister vent solenoid (under the spare tire, between the canisters
• Egr vacuum regulator solenoid (top right of engine)
• Electronic pressure control solenoid
• Fuel injectors
• Idle air control valve (top right of engine, on throttle body)
• Message center
• Red
• Red/pnk
• S101
• S117
• S123
• S124
• S167
• S168 (near breakout to 4wabs control module)
• S169
• S247 (near breakout to i/p)
• Shift solenoids
• Ss1
• Ss2
• Tan
• Tan/ red
• Tan/red
• Torque converter clutch solenoid
• Transmission fluid temperature sensor
• Vapor management valve (left front corner of engine compt.)

5.0L, Engine Performance Wiring Diagrams (4 of 4) for Mercury Mountaineer 1997

List of elements for 5.0L, Engine Performance Wiring Diagrams (4 of 4) for Mercury Mountaineer 1997:

• (left side of i/p, taped to harness) clutch pedal position switch jumper
• (near breakout for instrument cluster)
• (near breakout to auxiliary relay box 3)
• (near breakout to egr valve position sensor)
• 270 ohms
• Air conditioning system (wot a/c relay)
• Brake on/off
• Brake on/off switch
• Cam pos in
• Camshaft position sensor (rear of engine)
• Camshaft position sensor shield
• Digital transmission range sensor (dtr sensor-a/t) (left side of transmission)
• Dpfe sens
• Epc sol
• Evap
• Evp sens
• From dtr sensor (diagram 1 of 4)
• 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 pump ctrl
• Fuse 15a
• Fuse 20a (maxi)
• Fuse 20a (mini)
• G100 (left front of engine compt. near radiator)
• G203 (right kick panel)
• Heated oxygen sensor 1 (on exhaust pipe)
• Heated oxygen sensor 2 (on exhaust pipe)
• Heated oxygen sensor 3 (on exhaust pipe)
• Heated oxygen sensor 4 (on exhaust pipe)
• Heater ctrl
• Ho2s 1
• Ho2s 1 sig
• Ho2s 2
• Ho2s 2 sig
• Ho2s 3
• Ho2s 4
• Ho2s 4 sig
• Hot at all times
• Iac sol
• Ign coil 3
• Ign coil 4
• Interior fuse panel
• Kapwr (+)
• Maf sens in
• Mass air flow sensor (right side of of engine compt.)
• Nca
• Oss (+)
• Power
• Power distribution box
• Power gnd
• Powertrain control module (right side of engine compt)
• Press trnsducr
• Pwr gnd
• Red
• Red/pnk
• Ref volt
• S105
• S108
• S113
• S119
• S135 (in breakout to rear of engine compt.)
• S142
• S147
• S201
• Sig rtn
• Tan
• Tan/red
• Tcc sol
• Tp sens in
• Tr sens
• Trans ctrl ind
• Vapor valve
• Vpwr
• Vss (+)
• Wac