AIR CONDITIONING

(behind right kick panel) g201
(in hvac harness, approximately 45 cm from c321)
(in i/p harness, approximately 14 cm from sp200) s353
(on top right of engine) (3.6l) g114
A/c compressor clutch (at right front of engine, on a/c compressor)
After boil coolant pump (trailer provisions) (in left front corner of engine compt)
After boil fuse (trailer provisions) 10a
After boil relay
Blower motor (at right side of hvac)
Blower motor control module (at bottom of blower motor)
Blower mtr speed ctrl
G100 (4.6l) (on right rear of engine)
G100 (on right rear of engine)
Ground
Hot at all times
Left air temperature actuator (at left center of hvac module, below mode actuator)
Mode actuator (at left side of evaporator on hvac)
Nca
Pnk
R11
R12
R13
R15
Right air temperature actuator (at right center of dash, on right side of hvac case)
Right rear fuse block (near right side of rear seat, under carpet)
S218
S324 (in dash harness, 33 cm from blower motor control module)
Speed ctrl
Tan

(4.6l) serial data
(at left rear of engine compt) g101
(at right front of engine compt) g104
(in engine harness, 11 cm (4.3 in) from engine control module) (3.6l) s108
(in engine harness, approximately 35 cm from underhood fuse block) (3.6l) s109
(left front frame rail, near engine control module) a/c refrigerant pressure sensor
2700 (or 596)
2761 (or 470)
3.6l 4.6l
4.6l 3.6l
470 (or 452)
5v reference
A/c clutch relay ctrl
A/c refrig press sensor
Ambient air temperature sensor (at front center of engine compt)
Computer data lines system
Coolant level switch (at left rear of engine compt, on coolant tank)
Ect sensor signal
Engine control module (ecm) (4.6l: on left front frame rail, under left headlamp assembly) (3.6l: at top front of engine)
Engine controls system
Engine coolant temperature (ect) sensor (3.6l: at left side of engine) (4.6l: at rear of right cylinder head)
Hi fan fuse 30a
Hi speed fan relay
High speed fan relay ctrl
Hot at all times
Left cooling fan (behind left side of front bumper, in front of a/c condenser)
Lo speed fan relay
Low
Low fan fuse 30a
Low ref
Low reference
Low speed fan relay ctrl
Main relay
Main relay ctrl
R14
R15
R16
R18
R19
R20
R21
R22
R39
R40
R41
R42
R47
R48
R49
R50
Right cooling fan (behind right side of front bumper, in front of a/c condenser)
S/p fan relay
S120 (3.6l) (in engine harness, approximately 30 cm from engine control module)
Serial data
Signal
Tan
Underhood fuse block (at right front of engine compartment)

(approximately 70 cm (27.6 in) from courtesy/reading lamp - center)
(in headliner harness, approximately 50 cm (19.7 in) from courtesy/reading lamp - center) s307
(in headliner harness, approximately 73.5 cm from right vanity mirror light) s311
(on auxiliary blower motor) auxiliary blower motor resistor assembly
(rear of right rear shock tower on "d" pillar) g401
Auxiliary blower motor (at left rear corner of cargo compt)
Auxiliary blower motor switch
G402 (rear of left rear shock tower on "d" pillar)
High
Hot at all times
Hot in run
Interior lights system
Low
Med
Med high
Med low
Off
Primary quarter a/c relay
Rear
Rear auxiliary blower motor switch
Rear auxiliary mode door control
Rear hvac fuse 30a
Right fuse block (near right side of rear seat, under carpet)
S308
S406 (in body harness, approximately 38 cm from c314)
S408 (in headliner harness, approxi- mately 79 cm (31.1 in) from courtesy/ reading lamp-center)
Tan

(4.6l) serial data
(in engine harness, approximately 35 cm from underhood fuse block) (3.6l) s109
2700 (or 596)
4.6l 3.6l
470 (or 452)
5v reference
A/c clutch relay ctrl
A/c compressor clutch (at right front of engine, on a/c compressor)
A/c refrig press sens sig
A/c refrigerant pressure sensor (left front frame rail, near engine control module)
Cmp clu relay
Comp clutch fuse 10a
Computer data lines system
E10
Engine control module (ecm) (4.6l: on left front frame rail, under left headlamp assembly) (3.6l: at top front of engine)
Engine controls system
G110 (4.6l) (in engine compartment, on right frame rail)
G114 (3.6l) (on top right of engine)
Hot at all times
Hot in run or start
Hvac control module
Low reference
Nca
R55
R56
R57
R58
S108 (3.6l) (in engine harness, 11 cm (4.3 in) from engine control module)
Serial data
Tan
Underhood fuse block (at right front of engine compartment)

AIR CONDITIONING – Cadillac SRX 2006 – SYSTEM WIRING DIAGRAMS