AIR CONDITIONING – GMC Suburban C1500 1999 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

6.5L

6.5L VIN F, Compressor Wiring Diagram for GMC Suburban C1500 1999

List of elements for 6.5L VIN F, Compressor Wiring Diagram for GMC Suburban C1500 1999:

• (engine harn, near diode)
• 30 cm from ebcm breakout)
• A/c comp fuse 10a
• A/c compressor clutch
• A/c compressor clutch relay (in underhood fuse/relay center)
• A/c compressor cycling switch (in low pressure line, on accumulator)
• A/c control
• A/c disable
• A/c enable
• A/c high pressure cutout switch (on a/c compressor)
• A/c low pressure cutout switch (on a/c compressor)
• A/c switch
• Blower switch
• Diode
• Fuse block
• G105 (right side of engine)
• Hot in run
• Hot in run or start
• Htr a/c fuse 12 25a
• Hvac control module
• Ign 1 fuse 10a
• Ignition
• Off
• Pnk
• Powertrain control module (behind right side of dash)
• Recirc signal
• Recirculation door motor (on a/c-heater housing)
• S185
• S186
• S268 (i/p harn, behind center of dash)
• Underhood fuse block

6.5L VIN F, Manual A/C Wiring Diagram for GMC Suburban C1500 1999

List of elements for 6.5L VIN F, Manual A/C Wiring Diagram for GMC Suburban C1500 1999:

• (behind right
• (engine harn,
• (engine harn, near diode)
• (engine harness, near ebcm breakout)
• (hvac harness, 4 cm from recirc door breakout)
• (hvac harness, 8 cm from recirc door breakout)
• (i/p harn, 24 cm from cluster breakout)
• (i/p harness, behind center of dash)
• (right side of dash) g202
• A/c comp fuse 10a
• A/c compressor clutch
• A/c compressor clutch relay (in underhood fuse center)
• A/c compressor cycling switch (in low pressure line, on accumulator)
• A/c ctrl
• A/c disable
• A/c enable
• A/c high pressure cutout switch (on a/c compressor)
• A/c low pressure cutout switch (on a/c compressor)
• A/c switch
• Air temp dr signal
• Battery
• Block
• Blower fuse 3 50a
• Blower motor
• Blower resistor (under right side of dash, on heater housing)
• Blower switch
• Defogger element
• Diode
• Front mode door motor (on front a/c-heater housing)
• Front temperature door motor (on front a/c-heater housing)
• Fuse
• Fuse block
• G105 (right side of engine)
• G200 (behind left side of dash)
• Ground
• Heater and a/c control module
• High blower relay (under dash on top of heater-a/c housing)
• Hot at all times
• Hot in run
• Hot in run or start
• Htr-a/c fuse 12 25a
• Ign e fuse 10a
• Ignition
• Illumination
• Interior lights system
• Mode signal
• Near diode)
• Off
• Pnk
• Powertrain control module
• Rear defogger system
• Recirc signal
• Recirculation door motor (under dash on heater- a/c housing)
• Red
• S107 (engine harn, 30 cm from breakout to ebcm)
• S110
• S185
• S186
• S212 (i/p harn, behind center of dash)
• S243
• S244
• S268
• S298
• Side of dash)
• Tan
• Underhood

6.5L VIN F, Manual A/C Wiring Diagram, Auxiliary (1 of 2) for GMC Suburban C1500 1999

List of elements for 6.5L VIN F, Manual A/C Wiring Diagram, Auxiliary (1 of 2) for GMC Suburban C1500 1999:

• (hvac harn, 8 cm from recirc door breakout) s244
• (i/p harn, 24 cm from i/p cluster breakout)
• A/c compressor clutch
• A/c compressor clutch diode
• A/c compressor clutch relay (in underhood fuse/relay center)
• A/c compressor cycling switch (on top of accumulator)
• A/c compressor high pressure cutout switch (rear of the a/c compressor)
• A/c compressor low pressure cutout switch (on top of a/c compressor)
• A/c disable
• A/c fuse 10a
• A/c request
• Air temp dr sensor
• Aux fan fuse 30a
• Auxiliary cooling fan motor
• Auxiliary cooling fan relay (in underhood fuse/relay center)
• Battery
• Blower fuse 3 50a
• Blower motor (under right side of dash)
• Blower resistor (on blower motor housing)
• Blower switch
• C 1995 vftc
• Defogger element
• Front mode door motor (on front a/c-heater housing)
• Front temperature door motor (on front a/c-heater housing)
• G105 (right front of engine block)
• G112 (right front of engine compt)
• G200 (behind left side of dash)
• G202 (right side of dash)
• Ground
• High blower relay (on top of front a/c- heater blower housing)
• Hot at all times
• Hot in run
• Htr-a/c fuse 12 25a
• Hvac control module
• I/p fuse block
• Ign e fuse 10a
• Ignition
• Illumination
• Interior lights system
• Mode signal
• Off
• Pnk
• Rear defogger system
• Recirc ctrl
• Recirculation door motor (on front a/c-heater housing)
• Red
• Relay control
• S110 (engine harness, near ebcm breakout)
• S185 (in harness near diode)
• S186 (in harness near diode)
• S212 (dash harn, 8 cm from airbag switch breakout)
• S243 (hvac harn, 4 cm from recirc door breakout)
• S298
• Switch signal
• Tan
• Underhood fuse block
• Vehicle control module (on left side of engine compartment)

6.5L VIN F, Manual A/C Wiring Diagram, Auxiliary (2 of 2) for GMC Suburban C1500 1999

List of elements for 6.5L VIN F, Manual A/C Wiring Diagram, Auxiliary (2 of 2) for GMC Suburban C1500 1999:

• (in front of overhead console) auxiliary a/c & heater control module (front)
• (taillamp ext harn, near g404 breakout)
• A red
• Auxiliary a/c & heater control module (rear) (behind left side of dash)
• Auxiliary a/c & heater logic module (behind left side of dash)
• Auxiliary blower motor (behind right rear wheelwell)
• Auxiliary blower motor relay (high) (on auxiliary a/c-heater blower housing, right rear of vehicle)
• Auxiliary blower motor relay (low) (on auxiliary a/c-heater blower housing, right rear of vehicle)
• Auxiliary blower motor relay (medium) (on auxiliary a/c-heater blower housing, right rear of vehicle)
• Auxiliary blower resistor (on top of auxiliary hvac plenum)
• C 1995 vftc
• Convenience center
• G400 (on right side "b" pillar)
• Ground
• High
• Hot in run
• I/p fuse block
• Low
• Med
• Mode
• Mode door motor (rear) (on rear a/c housing)
• Off
• Rear
• Red
• Red e
• Rr hvac/ fuse 5 10a
• S305 (auxiliary hvac harn, near rear auxiliary hvac control module)
• S306 (auxiliary hvac harn, near rear auxiliary hvac control module)
• S324
• S400 (auxiliary hvac harn, near auxiliary blower motor relays)
• S401 red (auxiliary hvac harn, near auxiliary blower motor relays)
• Signal
• Temp
• Temp door motor (rear) (on rear a/c housing)