AIR CONDITIONING – Mercury Grand Marquis LS 1997 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

A/C Wiring Diagram, Auto A/C for Mercury Grand Marquis LS 1997

List of elements for A/C Wiring Diagram, Auto A/C for Mercury Grand Marquis LS 1997:

• (engine harn, left rear of eng compt) s110
• (engine harn, near right front fender)
• (i/p harn, behind center of i/p)
• (i/p harn, behind right side of i/p) s200
• (i/p harn, behind top left side of i/p)
• (i/p harn, near data link conn (dlc) breakout)
• (i/p harn, near glove box lamp breakout)
• (not used)
• (top of engine, near fuel injector 1)
• A/c compressor clutch
• A/c clutch cycling pressure switch (right rear of engine compartment)
• A/c clutch diode
• A/c clutch out
• A/c cutout relay (in relay center)
• A/c high pressure cut out switch (right side of engine compartment)
• A/c plenum)
• Ambient temp input
• Ambient temperature sensor (center front of vehicle, on upper radiator support)
• Battery
• Blend door act
• Blend door actuator (behind right side of i/p, top of
• Blend door pot
• Blend door ref
• Blower motor
• Blower motor speed
• Blower motor speed controller (top right center of safety wall)
• Blower spped fback
• C227
• C228
• Cooling fan
• Cooling fan fuse 50a
• Cooling fan relay (engine compartment fuse box)
• Data link (+)
• Data link (-)
• Data link connector (dlc) (behind left side of i/p)
• Electronic automatic temperature control (eatc) module (center of i/p)
• Eng/met conv
• Engine compartment fuse box
• Fuse 15a
• Fuse 30a
• G101 (front of right front fender apron)
• G134
• Ground
• Hot at all times
• Hot in run
• I/p fuse panel
• Ignition
• Illumination
• In car temp sens
• In-car temperature sensor (behind top center of i/p)
• Instrument cluster (digital)
• Interior lights system
• Pcm power relay
• Powertrain control module (pcm) (behind left side of i/p)
• Red
• Relay signal
• S113
• S117
• S118
• S206
• S226
• S227 (i/p harness, behind left side of i/p)
• S251
• Sensor ground
• Sun load sensor (top right side of i/p, above glove box)
• Sunload sens input

A/C Wiring Diagram, Manual A/C for Mercury Grand Marquis LS 1997

List of elements for A/C Wiring Diagram, Manual A/C for Mercury Grand Marquis LS 1997:

• (front of right front fender apron)
• (not used)
• A/c clutch cycling pressure switch (right rear of engine compartment)
• A/c clutch diode
• A/c compressor clutch
• A/c high pressure cut out switch (right side of engine compartment)
• A/c wot cutout relay (in relay center)
• A/c-heater mode switch
• Blend door actuator (behind right side of i/p)
• Blower motor
• Blower motor resistor assembly (top right center of safety wall)
• Blower motor switch
• Cold
• Cooling fan
• Cooling fan fuse 50a
• Cooling fan relay (in engine compartment fuse box)
• Def
• Engine compartment fuse box
• Floor
• Fuse 5 15a
• Fuse 9 30a
• G101
• G134 (top of engine near fuel injector 1)
• G200 (behind left cowl panel, near door sill)
• G203 (behind right cowl panel, near door sill)
• Hot at all times
• Hot in run
• I/p fuse panel
• Max a/c
• Mix
• Norm a/c
• Off
• Pcm power relay
• Pnk
• Powertrain control module (pcm) (behind left side of i/p)
• Red
• S110 (eng harness, left rear of engine compt)
• S113 (eng harn, near right front fender)
• S200 (i/p harn, right side of i/p)
• S206 (i/p harn, near glove box lamp breakout)
• S207 (i/p harn, right side of i/p)
• S226 (i/p harness, top left side of i/p)
• S239 (eng harn, right rear of eng compt)
• Solid state
• Temperature control potentiometer
• Vent
• Warm