AIR CONDITIONING – GMC Yukon XL C1500 2007 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 4) for GMC Yukon XL C1500 2007

List of elements for Automatic A/C Wiring Diagram (1 of 4) for GMC Yukon XL C1500 2007:

• (bottom center of hvac module) blower motor control module
• (in headliner harness, 35 cm from front inside air temperature sensor breakout)
• (right front corner of hvac case) g200
• (under right side of hvac module) blower motor
• 5v ref
• A/c ind
• A/c low pressure switch
• A/c on
• Air temp
• Air tmp
• Amb tmp
• Ambient air temperature sensor (right front of engine compt)
• Ambient light/ sunload sensor assembly (top center of dash)
• Auto
• B(+)
• Blwr spd
• Computer data lines system
• Defogger system
• Dfrst val
• Fan dn
• Fan up
• Frnt dfg
• Front inside air temperature sensor (above left front of headliner)
• Frt def
• G103 (front of right cylinder head)
• G200 (right front corner of hvac case)
• G201 (behind upper left end of dash)
• Gmlan l
• Ground
• Hvac control module
• Ign 3
• L air tmp
• Left i/p junction block (below left end of dash)
• Left temp control
• Lf sunld
• Logic
• Low ref
• Lower auxiliary air temperature sensor (front of a rear hvac module)
• Lw prss
• Mode cntrl
• Mode ctrl
• Mode sw
• Off
• Pnk
• Power distribution system
• R air tmp
• Rear dfg
• Recir
• Recir ctrl
• Recirc
• Red
• Rer def
• Rer defg
• Rf sunld
• Right temp control
• S106
• S203
• S206 (in instrument panel harness, 14 cm from c207 breakout)
• S325
• S326
• Sns sig
• Sw sig
• Tan
• Upper auxiliary air temperature sensor
• Upper left air temperature sensor (at center of dash)
• Upper right air temperature sensor (at center of dash)
• X11

Automatic A/C Wiring Diagram (2 of 4) for GMC Yukon XL C1500 2007

List of elements for Automatic A/C Wiring Diagram (2 of 4) for GMC Yukon XL C1500 2007:

• (on a/c compressor) a/c compressor clutch
• A/c cmprsr fuse 17 10a
• A/c cmprsr relay
• A4 x5
• Aux hvac-ign fuse 49 10a
• Body control module (bcm)
• E x4
• Engine control module (ecm)
• G102 (lower left front of engine)
• Hot at all times
• Hvac batt fuse 38 10a
• Hvac blwr fuse 73 40a
• Hvac-ign fuse 55 10a
• Pnk
• Red
• Right i/p junction block (below right end of dash)
• Run/ crank relay
• Tan
• Under- hood fuse block (left side of engine compt)

Automatic A/C Wiring Diagram (3 of 4) for GMC Yukon XL C1500 2007

List of elements for Automatic A/C Wiring Diagram (3 of 4) for GMC Yukon XL C1500 2007:

• (bottom left side of hvac module) lower right air temperature sensor
• (left side of hvac module) lower left air temperature sensor
• 87a
• A/c refrigerant pressure sensor
• Fan cntrl relay
• Fan hi relay
• Fan lo relay
• Fan-1 fuse 59 40a
• Fan-2 fuse 63 40a
• G100 (lower left radiator support)
• Hot at all times
• Left air temperature actuator (bottom left side of hvac module)
• Left cooling fan (behind radiator)
• Logic
• Mode actuator (left side of hvac module)
• Pnk
• Pwr/ trn relay
• Recirculation actuator (upper right of hvac module)
• Right air temperature actuator (top of hvac module)
• Right cooling fan (behind radiator)
• S100
• Tan
• Under- hood fuse block (left side of engine compt)

Automatic A/C Wiring Diagram (4 of 4) for GMC Yukon XL C1500 2007

List of elements for Automatic A/C Wiring Diagram (4 of 4) for GMC Yukon XL C1500 2007:

• (above left rear of headlines) rear inside air temperature sensor
• (below rear hvac blower motor) auxiliary blower motor control module
• (or pnk)
• 5v ref
• Auxiliary air temperature actuator (on rear hvac module assembly)
• Auxiliary blower motor (rear of rear hvac module) (long wheel base) (right rear of passenger compt) (short wheel base)
• Auxiliary mode actuator (at front of rear hvac module) (long wheel base) (on rear hvac module) (short wheel base)
• Computer data lines system
• Dn blwr spd
• G200 (right front corner of hvac case)
• G402 (on right "d" pillar)
• Gmlan
• Hot at all times
• Hvac control module
• I/p fuse block (behind lower left end of dash)
• Logic
• Low ref
• Mde cntrl
• Mode selet
• Mtr cntrl
• On/ off
• Pnk
• Rear hvac fuse 30a
• Rear seat audio (rsa) controller
• S326
• Sns cntrl
• Temp
• Temp cntrl

Compressor Wiring Diagram for GMC Yukon XL C1500 2007

List of elements for Compressor Wiring Diagram for GMC Yukon XL C1500 2007:

• (on a/c compressor) a/c compressor clutch
• A/c cmprsr fuse 17 10a
• A/c cmprsr relay
• A/c ind
• A/c low pressure switch
• A/c on
• A/c refrigerant pressure sensor
• B(+)
• Computer data lines system
• Engine control module (ecm)
• G102 (lower left front of engine)
• G103 (front of right cylinder head)
• G200 (right front corner of hvac case)
• Gmlan l
• Ground
• Hot at all times
• Hvac batt fuse 38 10a
• Hvac control module
• Logic
• Lw prss
• S106
• S203
• Tan
• Under- hood fuse block (left side of engine compt)

Manual A/C Wiring Diagram (1 of 4) for GMC Yukon XL C1500 2007

List of elements for Manual A/C Wiring Diagram (1 of 4) for GMC Yukon XL C1500 2007:

• (below left end of dash) left i/p junction block
• (bottom center of hvac module) blower motor control module
• (right front corner of hvac case)
• (right front corner of hvac case) g200
• (under right side of hvac module) blower motor
• 5v ref
• A/c ind
• A/c low pressure switch
• A/c on
• Air tmp
• Auto
• Auxiliary hvac control module (above middle of headliner)
• B(+)
• Blwr spd
• Computer data lines system
• Defogger system
• Dfrst val
• Fan dn
• Fan up
• Frnt dfg
• Frt def
• G103 (front of right cylinder head)
• G200
• G200 (right front corner of hvac case)
• G201 (behind upper left end of dash)
• Gmlan l
• Ground
• Hvac control module
• Ign 3
• Interior lights system
• Interior lights system power distribution system
• L air tmp
• Led cntrl
• Left temp control
• Logic
• Low ref
• Lw prss
• Mode ctrl
• Mode sig
• Mode sw
• Mtr sig
• Off
• Pnk
• R air tmp
• Rear dfg
• Recir
• Recir ctrl
• Recirc
• Red
• Rer def
• Rer defg
• Right temp control
• S106
• S203
• Sw sig
• Tan
• Temp sig
• X11

Manual A/C Wiring Diagram (2 of 4) for GMC Yukon XL C1500 2007

List of elements for Manual A/C Wiring Diagram (2 of 4) for GMC Yukon XL C1500 2007:

• (on a/c compressor) a/c compressor clutch
• A/c cmprsr fuse 17 10a
• A/c cmprsr relay
• Aux hvac-ign fuse 49 10a
• Body control module (bcm)
• E x4
• Engine control module (ecm)
• G102 (lower left front of engine)
• Hot at all times
• Hvac batt fuse 38 10a
• Hvac blwr fuse 73 40a
• Hvac-ign fuse 55 10a
• Pnk
• Red
• Right i/p junction block (below right end of dash)
• Run/ crank relay
• Tan
• Under- hood fuse block (left side of engine compt)

Manual A/C Wiring Diagram (3 of 4) for GMC Yukon XL C1500 2007

List of elements for Manual A/C Wiring Diagram (3 of 4) for GMC Yukon XL C1500 2007:

• (not used)
• 87a
• A/c refrigerant pressure sensor
• Fan cntrl relay
• Fan hi relay
• Fan lo relay
• Fan-1 fuse 59 40a
• Fan-2 fuse 63 40a
• G100 (lower left radiator support)
• Hot at all times
• Left air temperature actuator (bottom left side of hvac module)
• Left cooling fan (behind radiator)
• Logic
• Mode actuator (on left side of hvac module)
• Pnk
• Pwr/ trn relay
• Recirculation actuator (upper right of hvac module)
• Right air temperature actuator (top of hvac module)
• Right cooling fan (behind radiator)
• S100
• Tan
• Under- hood fuse block (left side of engine compt)

Manual A/C Wiring Diagram (4 of 4) for GMC Yukon XL C1500 2007

List of elements for Manual A/C Wiring Diagram (4 of 4) for GMC Yukon XL C1500 2007:

• (below rear hvac blower motor) auxiliary blower motor control module
• (or pnk)
• 5v ref
• Auxiliary air temperature actuator (on rear hvac module assembly)
• Auxiliary blower motor (rear of rear hvac module) (long wheel base) (right rear of passenger compt) (short wheel base)
• Auxiliary mode actuator (at front of rear hvac module) (long wheel base) (on rear hvac module) (short wheel base)
• Computer data lines system
• Dn blwr spd
• G402 (on right "d" pillar)
• Gmlan
• Hot at all times
• Hvac control module
• I/p fuse block (behind lower left end of dash)
• Logic
• Low ref
• Mde cntrl
• Mode selet
• Mtr cntrl
• On/ off
• Pnk
• Rear hvac fuse 30a
• Rear seat audio (rsa) controller
• Temp
• Temp cntrl