AIR CONDITIONING – Mercury Mountaineer 1999 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Mercury Mountaineer 1999

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Mercury Mountaineer 1999:

• (near breakout for instrument cluster) s209
• (near breakout to i/p fuse panel) s217
• (near breakout to radio) s200
• (near breakout to rear blower motor relay) s210
• (near breakout to rear window defrost relay) s263
• (not used)
• (rear of left front fender) g100
• (rear of right front fender) g102
• 87a
• A/c demand
• Amb temp sens input
• Ambient air temperature sensor (left front of engine compartment)
• Audio/climate control switch assembly
• Battery
• Battery junction box (left side of engine compartment, at fender apron)
• Blend door 5v+
• Blend door act gnd
• Blend door actuator
• Blend door actuator (behind right side of dash, top of a/c plenum)
• Blend door ref
• Blower motor (right side of engine compartment)
• Blower motor relay
• Blower motor speed controller (near blower motor)
• Blower mtr fback
• Blower mtr rly gnd
• Blr mtr rly out
• C297
• C298
• Clockspring assembly
• Cruise control
• Data (+)
• Data (-)
• Eatc to clockspring
• Electronic automatic temperature control (eatc) module (behind center of dash)
• English/metric in
• Fan
• Fuse 7.5a
• Fuse 2 40a
• Fuse junction panel
• Ground
• Hot at all times
• Hot in run
• Illumination
• In car temp sens
• In-car temperature sensor (behind top center of dash)
• Input ground
• Inst illum
• Interior lights system
• Lamp illum
• Message center
• Nca
• Ohms
• Power
• Rear blr rly gnd
• Red
• Sound systems
• Speed control servo/ amplifier assembly (in right rear engine compartment)
• Speed ctrl out
• Speed ctrl sw gnd
• Sun load sensor (top right side of dash, above glove box)
• Sunload sens input
• Temp

Automatic A/C Wiring Diagram (2 of 2) for Mercury Mountaineer 1999

List of elements for Automatic A/C Wiring Diagram (2 of 2) for Mercury Mountaineer 1999:

• (left radiator support) g101
• (near branch to fuel pump relay) s123
• (near breakout to 4wabs control module) s137
• (near breakout to a/c compressor clutch) s133
• (near breakout to ground g201, under right side of dash) s205
• (near breakout to ground g201, under right side of dash) s206
• (not used)
• (rear of left front fender) g100
• 87a
• A/c clutch cycling pressure switch (in right side of engine compartment, on a/c accumulator)
• A/c clutch diode (left side of engine compartment, near a/c compressor clutch, taped in harness)
• A/c compressor clutch solenoid (on left side of engine compartment)
• A/c cps
• A/c hpcs input
• A/c pressure cutoff switch (near a/c compressor clutch solenoid)
• A/c relay
• A/c wot output
• Battery junction box (left side of engine compartment, at fender apron)
• Connector (dlc) (partial) (behind left side of dash)
• Data +
• Data -
• Data link
• Fuse 7.5a
• Fuse 10a
• Fuse junction panel
• Hot at all times
• Low med
• Off
• Pcm power relay
• Powertrain control module (pcm) (mounted through firewall)
• Rear blower motor (in rear of center console)
• Rear blower motor relay (behind right side dash)
• Rear blower motor resistor (in dash console)
• Rear integrated control panel (ricp) (rear blower switch)
• Red
• S100 (between diode & breakout for a/c compressor clutch solenoid)
• S231 (near breakout to rear blower motor)

Manual A/C Wiring Diagram for Mercury Mountaineer 1999

List of elements for Manual A/C Wiring Diagram for Mercury Mountaineer 1999:

• (left radiator support) g101
• (near breakout for generic electronic module) s229
• (near breakout to 4wabs control module) s159
• (near breakout to a/c compressor clutch solenoid) s133
• (not used)
• (rear of left front fender) g100
• (rear of right front fender) g102
• A/c clutch cycling pressure switch (in right side of engine compartment, on a/c accumulator)
• A/c clutch diode (left side of engine compartment, near a/c compressor clutch, taped in harness)
• A/c compressor clutch solenoid (on left side of engine compartment)
• A/c pressure cutoff switch (near a/c compressor clutch solenoid)
• A/c relay (in power distribution box)
• Battery junction box
• Blend door actuator (behind right side of dash, top of a/c plenum)
• Blower motor (right side of engine compartment)
• Blower motor relay (in power distribution box)
• Blower motor resistor (near blower motor)
• Blower motor switch
• C231
• C276
• Cold
• Def/flr
• Defrost
• Floor
• Function selector switch assembly
• Fuse 7.5a
• Fuse 10a
• Fuse 40a
• Fuse 7.5a
• Fuse junction panel
• High speed blower relay (in auxiliary relay box 2)
• Hot at all times
• Hot in run
• Illumi- nation
• Interior lights system
• Low
• Max a/c
• Med
• Med hi
• Med lo
• Norm a/c
• Off
• Off panel
• Panel
• Panel/floor
• Pcm power relay (in power distribution box)
• Power distribution box
• Powertrain control module (pcm) (mounted through firewall)
• Rear blower motor (in rear of center console)
• Rear blower motor resistor (in dash console)
• Rear integrated control panel (ricp) (rear blower switch)
• Red
• S100 (behind diode & breakout for compressor clutch)
• S123 (near breakout to fuel pump relay)
• S170 (near breakout to blower motor)
• S200 (near breakout to radio)
• Solid state
• Temperature control potentiometer
• To blower motor switch)
• To relay module)
• Warm