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Air Conditioning — Mercury Grand Marquis LS 2011 Wiring Diagram

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Mercury Grand Marquis LS 2011

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Mercury Grand Marquis LS 2011:

A/c output
Ambient
Ambient air temperature sensor (front of upper radiator support)
Battery junction box (bjb) (right front of engine compt, behind battery)
Blend door cool
Blend door heat
Blower
Blower motor
Blower motor relay
Blower motor speed control (right rear of engine compt)
C228a
C228b
C260
Central junction box (cjb) (left of steering column)
Computer data lines system
Eatc hvac module
Fuse 10a
Fuse 15a
Fuse 40a
G109 (front of right fender)
G203 (right kick panel)
Ground
Hi blower
Hot at all times
Hot in run
In car
In-vehicle temperature sensor (center of dash)
Interior lights system
Pot feed
Pot feedback
Pot rtn
Pwm illum
Pwr gnd
Run
S121
S207
Scp +
Scp -
Sens rtn
Steering wheel ctrl
Sun load
Variable volt dim
Vbatt
Vbc
Vbc feedback
Vbc hbr
Vbc input
Vbc output

Automatic A/C Wiring Diagram (2 of 2) for Mercury Grand Marquis LS 2011

List of elements for Automatic A/C Wiring Diagram (2 of 2) for Mercury Grand Marquis LS 2011:

(engine control sensor & fuel charge wiring harness, near breakout to cop 4)
(top of steering column) clockspring
A/c clutch field coil (lower right front of engine)
A/c clutch relay
A/c cycling switch 1) open at 159kpa (23psi) 2) close at 290kpa (42psi)
A/c pressure transducer
Accr ctrl
Accs
Acpt
Audio unit
Audio/climate control switch
Autolamp sensor
Autolamp sensor (under upper left side of dash)
Battery junction box (bjb) (right front of engine compt, behind battery)
C139
C175b
C175e
C175t
C192
C2145a
C218a
C218b
C237
C260
C290a
Control solid state
Engine controls system
Engine cooling fan module (left front of engine compt)
Engine cooling fan motor
Fcv
Fuse 15a
Fuse 50a
G102 (front of left fender)
G109 (front of right fender)
G201 (right kick panel)
G203 (right kick panel)
Ground
Hot at all times
Hot in start or run
Interior lights system
Lighting control module (under center of dash)
Next
Patil
Powertrain control module (pcm) (left rear of engine compt)
Pwr
Red
Remote
S114
S123 (engine control sensor & fuel charge wiring harness, near breakout to powertrain control module (pcm))
S126
S201
S210
S294 (in breakout to steering wheel/ speed control switch)
Sig rtn 1
Temp+
Temp-
Temperature blend door actuator (right side of dash, on top of a/c plenum)
Var spd in
Vol+
Vol-
Vref

Manual A/C Wiring Diagram for Mercury Grand Marquis LS 2011

List of elements for Manual A/C Wiring Diagram for Mercury Grand Marquis LS 2011:

(engine control sensor & fuel charge wiring harness, near breakout to cop 4)
(left rear of engine compt)
(w/ police)
A/c clutch diode
A/c clutch field coil (lower right front of engine)
A/c clutch relay
A/c cycling switch 1) open at 159kpa (23psi) 2) close at 290kpa (42psi)
A/c max a/c
A/c pressure transducer
Accr ctrl
Accs
Acpt
Battery junction box (bjb) (right front of engine compt, behind battery)
Blower motor
Blower motor relay
Blower motor resistor (right rear of engine compt)
C139
C175b
C175e
C192
C237
C260
C294a
C294b
C294c
C294d
Central junction box (cjb) (left of steering column)
Climate control assembly
Control circuit
Def/floor
Defrost
Defrost def/floor
Engine controls system
Engine cooling fan module (left front of engine compt)
Engine cooling fan motor
Fcv
Floor
Fuse 10a
Fuse 15a
Fuse 40a
Fuse 50a
G102 (front of left fender)
G109 (front of right fender)
G203 (right kick panel)
G204 (right kick panel)
Ground
High
Hot at all times
Hot in run
Hot in start or run
Ill
Interior lights system
Low
Max a/c a/c
Mid high
Mid low
Off
Pan/floor
Panel
Powertrain control module (pcm)
Pwr
Red
S114
S121
S122 (right rear of engine compt)
S123 (engine control sensor & fuel charge wiring harness, near breakout to powertrain control module (pcm))
S126
S207
Sig rtn 1
Temperature blend door actuator (right side of dash, on top of a/c plenum)
Test
Thermal limiter
Var spd in
Vref

AIR CONDITIONING – Mercury Grand Marquis LS 2011 – SYSTEM WIRING DIAGRAMS