AIR CONDITIONING – Chevrolet Chevy Express H1500 2007 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Compressor Wiring Diagram for Chevrolet Chevy Express H1500 2007

List of elements for Compressor Wiring Diagram for Chevrolet Chevy Express H1500 2007:

• (6.6l)
• (except 6.6l)
• 2006: diesel
• A/c compressor clutch (4.3l : at left front of eng, 6.6l : top front of eng, except 4.3l & 6.6l: at lower right front of eng)
• A/c fuse 32 10a
• A/c high pressure switch (6.6l: on rear of a/c compressor, except 6.6l: on rear portion of a/c compressor)
• A/c low pressure switch (on side of accumulator)
• A/c relay 54
• Bi-lev
• Body fuse block (under left front seat)
• Clutch rly ctrl
• D12
• Def
• F12
• G102 (left front lower side of engine block)
• G102 (on left rear of engine)
• Gasoline
• Heat
• Heat/def
• Hot at all times
• Hot in run
• Hot in run or start
• Hvac control assembly
• Hvac fuse 10 20a
• Ign e fuse 22 10a
• Low press sig
• Max
• Norm
• Off
• Powertrain control module (pcm) (on left inner fender, in engine compt) (gasoline) engine control module (ecm) (left side of engine compt) (diesel)
• Request sig
• S102
• Underhood fuse block (on left side of engine compt)
• Vent

Heater Wiring Diagram for Chevrolet Chevy Express H1500 2007

List of elements for Heater Wiring Diagram for Chevrolet Chevy Express H1500 2007:

• (6.6l)
• (except 6.6l)
• (on bottom of left "b" pillar) g347
• (on left rear of
• (rear a/c harn, 24 cm from rear blower motor resistor breakout)
• (rear hvac harn, 13 cm from auxiliary blower motor connector breakout)
• (rear hvac harn, 20 cm from auxiliary blower motor connector breakout)
• (w/ rear auxiliary heater) (w/ rear hvac)
• Air temperature actuator (behind right side of dash, on hvac)
• Auxiliary blower motor (if equipped (left rear of passenger
• Auxiliary blower motor resistor (if equipped) (on left rear of
• Auxiliary blower motor switch (if equipped)
• Auxiliary high speed blower motor relay (if equipped) (on left rear of
• Auxiliary low speed blower motor relay (if equipped)
• Auxiliary medium speed blower motor relay (if equipped) (on left rear of
• Bi-lev
• Blow fuse 51 40a
• Blower motor (right rear of engine compt, on evaporator case)
• Blower motor resistor assembly (right rear of engine compt)
• Body fuse block (below left front seat)
• Compt, on auxiliary hvac assembly)
• Def
• F10
• G102 (left front lower side of engine block)
• G102 (on left rear of engine)
• G304 (behind right kick panel)
• G401 (on top of right "d" pillar)
• Heat
• Heat/def
• Hot at all times
• Hot in run
• Hvac 1 fuse 9 10a
• Hvac control assembly
• Hvac fuse 20a
• Interior lights system
• Med
• Off
• Passenger compt, on auxiliary hvac assembly)
• Rr blower fuse 13 30a
• S102
• S249
• S401 s411
• S405
• S412
• S413
• Splice pack sp347
• Tan
• Underhood fuse block (on left side of engine compt)
• Vent

Manual A/C Wiring Diagram, Cargo Van (1 of 3) for Chevrolet Chevy Express H1500 2007

List of elements for Manual A/C Wiring Diagram, Cargo Van (1 of 3) for Chevrolet Chevy Express H1500 2007:

• (6.6l)
• (behind right kick panel) g304
• (behind right side
• (diesel)
• (except 6.6l)
• A/c high pressure switch (6.6l: on rear of a/c compressor, except 6.6l: on rear portion of a/c compressor)
• Auxiliary air temperature actuator (on auxiliary hvac assembly)
• Auxiliary mode actuator (left rear of passenger compt)
• Battery
• Bi-lev
• Blow fuse 51 40a
• Blower motor (right rear of engine compt)
• Blower motor resistor assembly (at right rear of engine compt, on evaporator case)
• Body fuse block (under left front seat)
• C2 a
• C2 c
• Def
• Defogger system
• F10
• Front auxiliary hvac control assembly (if equipped)
• G102 (left front lower side of engine block)
• G102 (on left rear of engine)
• G347 (on bottom of left "b" pillar)
• G401 (on top of right "d" pillar)
• Ground
• Heat
• Heat/def
• Hot at all times
• Hot in run
• Hvac 1 fuse 9 10a
• Hvac control assembly
• Hvac fuse 20a
• Ing 3
• Interior lights system
• Logic
• Max
• Med
• Norm
• Of dash, on hvac) air temperature actuator
• Off
• R defog ind
• Rear blwr fuse 13 30a
• S102
• S249
• S314
• S411
• Tan
• Underhood fuse block (on left side of engine compt)
• Vacuum pump (right front of engine compt, under battery) a
• Vent

Manual A/C Wiring Diagram, Cargo Van (2 of 3) for Chevrolet Chevy Express H1500 2007

List of elements for Manual A/C Wiring Diagram, Cargo Van (2 of 3) for Chevrolet Chevy Express H1500 2007:

• (6.6l)
• (except 6.6l)
• (on left rear of
• (provisional)
• (rear hvac harn, 13 cm from auxiliary blower motor connector breakout)
• (top of right "d" pillar) g401
• (w/ rv upfitter
• (w/ rv upfitter option:
• (w/ rv upfitter option: body harn, 22 cm from c308 breakout) (w/o rv upfitter option: body harn, 41 cm from c304 breakout)
• A/c compressor clutch (4.3l: at left front of eng, 4.8l, 5.3l & 6.0l: at lower right front of eng, 6.6l: top front of eng)
• A/c fuse 32 10a
• A/c low pressure switch (on side of accumulator)
• A/c relay 54
• Auxiliary blower motor (if equipped) (on auxiliary hvac)
• Auxiliary blower motor resistor (if equipped)
• Auxiliary high speed blower motor relay (if equipped)
• Auxiliary low speed blower motor relay (if equipped)
• Auxiliary medium speed blower motor relay (if equipped)
• Body harn, 22 cm from c308 breakout) (w/o rv upfitter option: body harn, 5 cm from c304 breakout)
• C319
• Clutch rly ctrl
• D12
• Diesel
• F12
• G102 (left front lower side of engine block)
• G102 (on left rear of engine)
• Gasoline
• Hot at all times
• Hot in run or start
• Ign e fuse 22 10a
• Low press sig
• Option: body harn, 32 cm from c308 breakout) (w/o rv upfitter option: body harn, 31 cm from c304 breakout)
• Passenger compt, on auxiliary hvac assembly)
• Powertrain control module (pcm) (on left front inner fender) (gasoline) engine control module (ecm) (left side of engine compt) (diesel)
• Req sig
• S102
• S308
• S310
• S311
• S405
• S411
• S412 (rear hvac harn, 20 cm from auxiliary blower motor connector breakout)
• S413 (rear a/c harn, 24 cm from aux blower motor breakout)
• Underhood fuse block (on left side of engine compt)

Manual A/C Wiring Diagram, Cargo Van (3 of 3) for Chevrolet Chevy Express H1500 2007

List of elements for Manual A/C Wiring Diagram, Cargo Van (3 of 3) for Chevrolet Chevy Express H1500 2007:

• (under left side of dash) data link connector (dlc)
• 5v ref
• Combustion sensor
• Coolant heater (diesel)
• Coolant heater air temperature sensor
• Coolant heater blower
• Coolant heater fuel pump (attached to left inner frame rail, near the fuel pump assembly)
• Coolant heater glow plug
• Coolant sensor
• Engine control module (ecm) (left side of engine compt)
• Foh/ecm/ tcm batt fuse 2 20a
• Fuel pump
• G400 (on inner left rear frame rail)
• Glow plug control module (gpcm) (turbo: left rear of eng, except turbo: top rear of eng)
• Grd
• Hot at all times
• Low ref
• Nca
• Overheat sensor
• Red
• S402
• Serial +
• Serial -
• Splice pack sp250 (in dash harn, approximately 20 cm from underhood pass through grommet)
• Tan
• Transmission control module (tcm) (left front of engine compt)
• Underhood fuse block (on left side of engine compt)
• Volt
• Volt +
• W/ auxiliary heater
• W/o auxiliary heater

Manual A/C Wiring Diagram, Passenger Van (1 of 3) for Chevrolet Chevy Express H1500 2007

List of elements for Manual A/C Wiring Diagram, Passenger Van (1 of 3) for Chevrolet Chevy Express H1500 2007:

• (6.6l)
• (behind right kick panel) g304
• (behind right side
• (diesel)
• (except 6.6l)
• (w/ rv upfitter option:
• (w/ rv upfitter option: in upfitter hvac control harn, 19 cm from c303 breakout) (w/o rv upfitter option: in front headliner harn, 42 cm from c304 breakout)
• (w/ rv upfitter option: in upfitter hvac control harn, 64 cm from c303 breakout) (w/o rv upfitter option: in front headliner harn, 11 cm from c304 breakout)
• A/c high pressure switch (6.6l: on rear of a/c compressor, except 6.6l: on rear portion of a/c compressor)
• Auxiliary hvac control processor (center front of headliner)
• Battery
• Bi-lev
• Blow fuse 51 40a
• Blower motor (on right rear of engine compt, on evaporator case)
• Blower motor resistor assembly (at right rear of engine compt, on evaporator case)
• Body fuse block (under left front seat)
• C1 g
• C2 a
• C2 c
• Def
• Defogger system
• F10
• Front auxiliary hvac control assembly
• G102 (left front lower side of engine block)
• G102 (on left rear of engine)
• G347 (on bottom of left "b" pillar)
• Ground
• Heat
• Heat/def
• Hot at all times
• Hot in run
• Hvac 1 fuse 9 10a
• Hvac control assembly
• Hvac fuse 20a
• In upfitter hvac control harn, 39 cm from c303 breakout) (w/o rv upfitter option: in front headliner harn, 31 cm from c304 breakout)
• Ing 3
• Interior lights system
• Logic
• Max
• Med
• Norm
• Of dash, on hvac) air temperature actuator
• Off
• R defog ind
• Rear
• Rear auxiliary hvac control assembly
• Rr blower fuse 13 30a
• S102
• S249
• S305
• S306
• S307
• S314
• S354
• Tan
• Tan e
• Underhood fuse block (on left side of engine compt)
• Vacuum pump (right front of engine compt, under battery) a
• Vent

Manual A/C Wiring Diagram, Passenger Van (2 of 3) for Chevrolet Chevy Express H1500 2007

List of elements for Manual A/C Wiring Diagram, Passenger Van (2 of 3) for Chevrolet Chevy Express H1500 2007:

• (6.6l)
• (except 6.6l)
• (on left rear of
• (provisional)
• (rear hvac harn, 13 cm from auxiliary blower motor connector breakout) s405
• (w/ rv upfitter
• (w/ rv upfitter option:
• (w/ rv upfitter option: body harn, 22 cm from c308 breakout) (w/o rv upfitter option: body harn, 41 cm from c304 breakout)
• A/c compressor clutch
• A/c fuse 32 10a
• A/c low pressure switch (on side of accumulator)
• A/c relay 54
• Auxiliary air temperature actuator (on auxiliary hvac assembly)
• Auxiliary blower motor (on auxiliary hvac)
• Auxiliary blower motor resistor
• Auxiliary high speed blower motor relay
• Auxiliary low speed blower motor relay
• Auxiliary medium speed blower motor relay
• Auxiliary mode actuator (left rear of passenger compt)
• Body harn, 22 cm from c308 breakout) (w/o rv upfitter option: body harn, 5 cm from c304 breakout)
• C319
• Clutch rly ctrl c2
• D12
• F12
• G102 (left front lower side of engine block)
• G102 (on left rear of engine)
• G401 (on top of right "d" pillar)
• Gasoline diesel
• Hot at all times
• Hot in run or start
• Ign e fuse 22 10a
• Low press sig c2
• Option: body harn, 32 cm from c308 breakout) (w/o rv upfitter option: body harn, 31 cm from c304 breakout)
• Passenger compt, on auxiliary hvac assembly)
• Powertrain control module (pcm) (on left front inner fender) (gasoline) engine control module (ecm) (left side of engine compt) (diesel)
• Request sig c2
• S102
• S308
• S310
• S311
• S411
• S412 (rear hvac harn, 20 cm from auxiliary blower motor connector breakout)
• S413 (rear a/c harn, 24 cm from auxiliary blower motor breakout)
• Underhood fuse block (on left side of engine compt)

Manual A/C Wiring Diagram, Passenger Van (3 of 3) for Chevrolet Chevy Express H1500 2007

List of elements for Manual A/C Wiring Diagram, Passenger Van (3 of 3) for Chevrolet Chevy Express H1500 2007:

• (under left side of dash) data link connector (dlc)
• 5v ref
• Combustion sensor
• Coolant heater (diesel)
• Coolant heater air temperature sensor
• Coolant heater blower
• Coolant heater fuel pump (attached to left inner frame rail, near the fuel pump assembly)
• Coolant heater glow plug
• Coolant sensor
• Engine control module (ecm) (left side of engine compt)
• Foh/ecm/ tcm batt fuse 2 20a
• Fuel pump
• G400 (on inner left rear frame rail)
• Glow plug control module (gpcm) (turbo: left rear of eng, except turbo: top rear of eng)
• Grd
• Hot at all times
• Low ref
• Nca
• Overheat sensor
• Red
• S402
• Serial +
• Serial -
• Splice pack sp250 (in dash harn, approximately 20 cm from underhood pass through grommet)
• Tan
• Transmission control module (tcm) (left front of engine compt)
• Underhood fuse block (on left side of engine compt)
• Volt
• Volt +
• W/ auxiliary heater
• W/o auxiliary heater