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Air Conditioning — Chevrolet Cab & Chassis Silverado 3500 HD 2010 Wiring Diagram

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 3) for Chevrolet Cab & Chassis Silverado 3500 HD 2010

List of elements for Automatic A/C Wiring Diagram (1 of 3) for Chevrolet Cab & Chassis Silverado 3500 HD 2010:

(left side of headliner) front inside air temperature sensor
(lower right side of hvac module) blower motor
(lower right side of hvac module) blower motor control module
(on right front corner of hvac module) g200
4b7
5v ref
A/c ind
A/c on
Air temp
Air tmp
Air tmp sig
Amb air tmp
Ambient air temperature sensor (on left side of radiator support)
Ambient light/ sunload sensor assembly (top center of dash)
Auto
B(+)
Batt pos volt
Blwr spd
Colnt lvl
Computer data lines system
Defogger system
Dfrst val
End of dash)
Engine coolant level switch (6.6l) (on bottom of surge tank)
Evaporator temperature sensor (on hvac assembly)
Fan dn
Fan up
Fresh air
Frnt dfg
Frt def
Fsh air
G103 (on front of of right cylinder head)
G200 (on right front corner of hvac module)
G201 (upper left corner of dash)
Gmlan l
Ground
Ground distribution system
Hvac control module
Ign 3
J106
J203
J206 (in i/p harness, near x200 breakout)
J328
L air tmp
Left i/p junction block (lower left side of dash) x1
Left sunload sensor
Left temp control
Lf sunld
Logic
Low ref
Mode ctrl
Mode dn
Mode up
Mtr spd ctrl
Off
Power distribution system
R air tmp
Rear defog
Rear dfg
Recir
Recir ctrl
Recirc
Recirc pos
Red
Rer def
Rf sunld
Right i/p junction block (in right x4
Right sunload sensor
Right temp control
Tan
Temp sens
Upper left air temperature sensor (under upper left side of dash)
Upper right air temperature sensor (under upper right side of dash)
X103

Automatic A/C Wiring Diagram (2 of 3) for Chevrolet Cab & Chassis Silverado 3500 HD 2010

List of elements for Automatic A/C Wiring Diagram (2 of 3) for Chevrolet Cab & Chassis Silverado 3500 HD 2010:

(left front of engine compt, near fan shroud) engine control module (ecm)
(lower left side of dash) body control module (bcm)
(on front of a/c compressor) a/c compressor clutch
(top left rear of engine) (4.3l) g107
4a1
4a2
4a3
4a4
4a5
4a6
4b2
4b3
4b5
4b6
6.6l
6.6l except 6.6l & 4.3l 4.3l
A/c cmprsr fuse 17 (except 6.6l) fuse 16 (6.6l) 10a
A/c cmprsr relay
Computer data lines system
E x4
Engine coolant temperature (ect) sensor (4.3l: left side of engine) (except 4.3l & 6.6l: on top of engine) (6.6l: top front center of engine)
G102 (except 4.3l & 6.6l) (on lower left front of engine)
Hot at all times
Hvac batt fuse 39 (except 6.6l) fuse 36 (6.6l) 10a
Hvac blwr fuse 70 (except 6.6l) fuse 65 (6.6l) 40a
Hvac ign fuse 55 (except 6.6l) fuse 52 (6.6l) 10a
J105
Pnk
Red
Right i/p junction block (in right end of dash)
Run/ crank relay
Tan
Under- hood fuse block (left side of engine compt)
X107

Automatic A/C Wiring Diagram (3 of 3) for Chevrolet Cab & Chassis Silverado 3500 HD 2010

List of elements for Automatic A/C Wiring Diagram (3 of 3) for Chevrolet Cab & Chassis Silverado 3500 HD 2010:

(left side of hvac module) lower left air temperature sensor
(lower left of hvac module) lower right air temperature sensor
(near compressor, on a/c high pressure hose) a/c refrigerant pressure sensor
(on lower right radiator support) g101
87a
Cooling fan diode 1
Cooling fan diode 2
Except 6.6l & 6.0l (vin k)
Fan cntrl relay
Fan hi relay
Fan lo relay
Fan-1 fuse 57 40a
Fan-2 fuse 60 40a
G100 (on lower left radiator support)
Hot at all times
J100
J101
J242 (in hvac harness)
Left air temperature actuator (bottom left of hvac module)
Left engine cooling fan (left front of engine compt)
Logic
Mode actuator (left end of hvac module)
Pwr/ trn relay
Recirculation actuator (top right side of hvac module)
Right air temperature actuator (top middle of hvac module)
Right engine cooling fan (right front of engine compt)
Tan
Under- hood fuse block (left side of engine compt)

Compressor Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 HD 2010

List of elements for Compressor Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 HD 2010:

(4.3l: top left rear of engine) (6.6l: on front of right cylinder head) (except 4.3l & 6.6l: on lower left front of engine)
(on front of a/c compressor) a/c compressor clutch
4.3l
6.6l
A/c cmprsr fuse 17 (except 6.6l) fuse 16 (6.6l) 10a
A/c cmprsr relay
A/c ind
A/c on
A/c refrigerant pressure sensor (near compressor, on a/c high pressure hose)
Automatic a/c
B(+)
Computer data lines system
Engine control module (ecm) (left front of engine compt, near fan shroud)
Except 4.3l & 6.6l
G107 (4.3l) g103 (6.6l) g102 (except 4.3l & 6.6l)
G200 (on right front corner of hvac module)
Gmlan l
Ground
Hot at all times
Hvac batt fuse 39 (except 6.6l) fuse 36 (6.6l) 10a
Hvac control module
J105
J203
Logic
Manual a/c
Tan
Under- hood fuse block (left side of engine compt)

Manual A/C Wiring Diagram (1 of 3) for Chevrolet Cab & Chassis Silverado 3500 HD 2010

List of elements for Manual A/C Wiring Diagram (1 of 3) for Chevrolet Cab & Chassis Silverado 3500 HD 2010:

(4.3l) g107
(4.3l: top left rear of engine) (6.6l: on front of right cylinder head) (except 6.6l & 4.3l: on lower left front of engine)
(6.6l) g103
(left front of engine compt, near fan shroud) engine control module (ecm)
(lower right side of hvac module) blower motor
(lower right side of hvac module) blower motor control module
4.3l
4a2
4b7
5v ref
6.6l
A/c cmprsr fuse 17 (except 6.6l) fuse 18 (6.6l) 10a
A/c comp- ressor clutch relay
A/c ind
A/c on
Ambient air temperature sensor (odometer security wiring provision) (on radiator support)
B(+)
Batt pos volt
Blower motor control switch
Blwr spd
Colnt lvl
Computer data lines system
Defogger system
Dfrst val
Engine coolant level switch (6.6l) (on bottom of surge tank)
Engine coolant temperature (ect) sensor (4.3l: left side of engine) (except 4.3l & 6.6l: on top of engine) (6.6l: top front center of engine)
Evaporator temperature sensor (on hvac assembly)
Except 4.3l & 6.6l
Except 6.6l 6.0l (vin k)
Fresh air
Frh air
G102 (except 6.6l & 4.3l)
G103 (on front of right cylinder head)
G200 (on right front corner of hvac module)
G201 (upper left corner of dash)
Gmlan l
Ground
Hot at all times
Hvac batt fuse 39 (except 6.6l) fuse 36 (6.6l) 10a
Hvac blwr fuse 70 (except 6.6l) fuse 65 (6.6l) 40a
Hvac control module
Hvac ign fuse 55 (except 6.6l) fuse 52 (6.6l) 10a
Ign 3
Interior lights system power distribution system
J105
J106
J203
Led cntl
Left i/p junction block (lower left side of dash)
Logic
Low ref
Mode ctrl
Mode switch
Mtr spd ctrl
Pnk
R air tmp
Rear defog
Rear dfg
Recir
Recir ctrl
Recirc
Red
Rer def
Right i/p junction block (in right end of dash) x4
Run/ crank relay
Tan
Temp sig
Temperature control switch
Under- hood fuse block (left side of engine compt)
X103
X109

Manual A/C Wiring Diagram (2 of 3) for Chevrolet Cab & Chassis Silverado 3500 HD 2010

List of elements for Manual A/C Wiring Diagram (2 of 3) for Chevrolet Cab & Chassis Silverado 3500 HD 2010:

(4.3l) g107
(4.3l: top left rear of engine) (6.6l: on front of right cylinder head) (except 6.6l & 4.3l: on lower left front of engine)
(6.6l) g103
(lower left side of dash) body control module (bcm)
(near compressor, on a/c high pressure hose) a/c refrigerant pressure sensor
(on front of a/c compressor) a/c compressor clutch
4a1
4a4
4a6
4b3
4b5
87a
Cooling fan diode 1
Cooling fan diode 2
Except 6.6l & 6.0l (vin k)
Fan cntrl relay
Fan lo relay
Fan-1 fuse 57 40a
Fan-2 fuse 60 40a
G100 (on lower left rediator support)
G101 (on lower right radiator support)
G102 (except 6.6l & 4.3l)
Hi fan relay
Hot at all times
J100
J101
J105
Left cooling fan (left front of engine compt)
Pnk
Pwr/ trn relay
Red
Right cooling fan (right front of engine compt)
Right i/p junction block (in right end of dash)
Tan
Under- hood fuse block (left side of engine compt)

Manual A/C Wiring Diagram (3 of 3) for Chevrolet Cab & Chassis Silverado 3500 HD 2010

List of elements for Manual A/C Wiring Diagram (3 of 3) for Chevrolet Cab & Chassis Silverado 3500 HD 2010:

(not used)
Air temperature actuator (top middle of hvac module)
Logic
Mode actuator (left end of hvac module)
Recirculation actuator (front a/c) (top right side of hvac module)
Tan

AIR CONDITIONING – Chevrolet Cab & Chassis Silverado 3500 HD 2010 – SYSTEM WIRING DIAGRAMS