AIR CONDITIONING – Mercury Grand Marquis LS 2006 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Mercury Grand Marquis LS 2006

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Mercury Grand Marquis LS 2006:

• A/c output
• Amb temp sens input
• Ambient air temperature sensor (on front of upper radiator support)
• Battery
• Battery junction box (bjb) (in right front of engine compt, behind battery)
• Blend door cool
• Blend door heat
• Blower
• Blower motor high
• Blower motor relay
• C228a
• C228b
• Central junction box (cjb) (below dash, left of steering column)
• Computer data lines system
• Electronic automatic temperature control (eatc) module (behind center of dash)
• Front blower motor (at right rear of engine compt)
• Front blower motor speed controller (at rear of engine compt)
• Fuse 10a
• Fuse 15a
• Fuse 40a
• G109 (at front of right fender)
• G203 (behind right kick panel)
• Ground
• Hot at all times
• Hot in start
• In car temp sens
• In-vehicle temperature sensor (behind center of dash)
• Instrument illum
• Interior lights system
• Pot feed
• Pot feedback
• Pot rtn
• Run
• S121 (in dash panel to headlamp junction harness, near breakout to battery junction box)
• S203 (in main body wiring harness, near breakout to instrument cluster)
• S207 (in main wiring harness, near breakout to rear window defrost switch)
• Scp bus (+)
• Scp bus (-)
• Sens rtn
• Steering wheel ctrl
• Sunload sens input
• Variable volt dim
• Vbc hbr
• Vbc input
• Vbc output

Automatic A/C Wiring Diagram (2 of 2) for Mercury Grand Marquis LS 2006

List of elements for Automatic A/C Wiring Diagram (2 of 2) for Mercury Grand Marquis LS 2006:

• (at base of steering column) air bag sliding contact
• (in engine control sensor & fuel charge wiring harness, near breakout to cop 4)
• A/c clutch field coil (at right front of engine)
• A/c clutch relay
• A/c compressor clutch diode
• A/c pressure transducer sensor (on right side center of engine)
• Accr
• Accs
• Acpt
• Audio/climate control switch
• Autolamp sensor
• Autolamp sensor (on upper left side of dash)
• Battery junction box (bjb) (in right front of engine compt, behind battery)
• C1048
• C175b
• C175e
• C175t
• C2145a
• C218a
• C218b
• C290a
• Cht
• Cylinder-head temperature sensor (on top left front of engine)
• Engine cooling fan module (left front of engine compt)
• Engine cooling fan motor
• Fan down
• Fan up
• Fc v
• Fuse 15a
• Fuse 50a
• G102 (at front of left fender)
• G109 (at front of right fender)
• G201 (behind right kick panel)
• G203 (behind right kick panel)
• Ground
• Hot at all times
• Hot in start or run
• Lighting control module (behind center of dash)
• Low charge protection switch (at right side of engine compt)
• Patil
• Phone
• Powertrain control module (pcm) (left rear of engine compt)
• Pwr
• Radio
• Red
• Rest
• S111 (in dash panel to headlamp junction harness, left rear of engine compt)
• S121
• S123 (in engine control sensor & fuel charge wiring harness, near breakout to pcm)
• S126
• S157 (in engine control sensor & fuel charge wiring harness, near breakout to c192)
• S201 (in main wiring harness, in breakout to adjustable pedal switch)
• S210 (in main wiring harness, near breakout to passenger air bag deactivation indicator)
• S294 (in steering column control switch jumper harness)
• Sig rtn 1
• Temp down
• Temp up
• Temperature blend door actuator (behind right side of dash, on top of a/c plenum)
• Var spd in
• Vref

Manual A/C Wiring Diagram for Mercury Grand Marquis LS 2006

List of elements for Manual A/C Wiring Diagram for Mercury Grand Marquis LS 2006:

• (in engine control sensor & fuel charge wiring harness, near breakout to cop 4)
• (left rear of engine compt)
• (right rear of engine compt) s122
• A/c clutch field coil (at right front of engine)
• A/c clutch relay
• A/c compressor clutch diode
• A/c pressure transducer sensor (on right side center of engine)
• A/c sw max
• Accr
• Accs
• Acpt
• Battery junction box (bjb) (in right front of engine compt, behind battery)
• Blower motor relay
• Blower motor switch
• C175b
• C175e
• C294a
• C294b
• C294c
• C294d
• Central junction box (cjb) (below dash, left of steering column)
• Cht
• Cylinder-head temperature sensor (on top left front of engine)
• Defrost
• Defrost defrost/floor
• Defrost/floor
• Engine cooling fan module (left front of engine compt)
• Engine cooling fan motor
• Fc v
• Floor
• Front blower motor (at right rear of engine compt)
• Front blower motor resistor assembly (at rear of engine compt)
• Function selector switch assembly
• Fuse 10a
• Fuse 15a
• Fuse 40a
• Fuse 50a
• G102 (at front of left fender)
• G109 (at front of right fender)
• G203 (behind right kick panel)
• G204 (behind right kick panel)
• Ground
• High
• Hot at all times
• Hot in run
• Hot in start or run
• Illumination
• Interior lights system
• Low
• Low charge protection switch (at right side of engine compt)
• Med high
• Med low
• Mode switch
• Off
• Panel
• Panel/floor
• Powertrain control module (pcm)
• Pwr
• Red
• S111 (in dash panel to headlamp junction harness, left rear of engine compt)
• S121 (in dash panel to headlamp junction harness, near breakout to battery junction box)
• S123 (in engine control sensor & fuel charge wiring harness, near breakout to pcm)
• S126
• S157 (in engine control sensor & fuel charge wiring harness, near breakout to c192)
• S207 (in main wiring harness, near breakout to rear window defrost switch)
• S209 (in main body wiring harness, near breakout to temperature blend door actuator)
• Sig rtn 1
• Temperature blend door actuator (behind right side of dash, on top of a/c plenum)
• Var spd
• Vref