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AIR CONDITIONING – GMC Cab & Chassis K2500 1998 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

5.0L

5.0L (VIN M), A/C Wiring Diagram for GMC Cab & Chassis K2500 1998

5.0L (VIN M), AC Wiring Diagram for GMC Cab  Chassis K2500 1998 https://portal-diagnostov.com/license.html
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List of elements for 5.0L (VIN M), A/C Wiring Diagram for GMC Cab & Chassis K2500 1998:

  • (engine harn, near diode)
  • (engine harness, 22 cm from ebcm breakout)
  • (engine harness, near ebcm breakout)
  • (engine harness, near egr valve breakout)
  • (exc 4.3 l)
  • (fwd lamps harn, 5 cm from right headlamp breakout)
  • (hvac harness, 4 cm from recirc door breakout)
  • (hvac harness, 8 cm from recirc door breakout)
  • (i/p harn, 28 cm from cluster breakout)
  • (i/p harness, behind center of dash)
  • (right side of dash)
  • 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 ctrl
  • A/c disable
  • A/c high pressure cutout switch (on a/c compressor)
  • A/c low pressure cutout switch (on a/c compressor)
  • A/c req
  • A/c switch
  • Air temp dr sensor
  • Aux fan ctrl
  • Aux fan fuse 30a
  • Auxiliary cooling fan motor
  • Auxiliary cooling fan relay (exc 4.3l) (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
  • Center
  • Defogger element
  • Diode
  • Front mode door motor (on front a/c-heater housing)
  • Front temperature door motor (on front a/c-heater housing)
  • Fuse block
  • G101 (right front of engine compartment)
  • G119 (top right side of cylinder head)
  • G120 (right side of engine)
  • G201
  • G202 (behind left side of dash)
  • Ground
  • High blower relay (on top of front a/c-heater housing)
  • Hot at all times
  • Hot in run
  • Hot in run or start
  • Htr a/c fuse 12 25a
  • Hvac control module
  • Ign e fuse 10a
  • Ignition
  • Illumination
  • Interior lights system
  • Mode signal
  • Off
  • Pnk
  • Rear defogger system
  • Recirculation door motor (on front a/c-heater housing)
  • Red
  • Relay ctrl
  • S103
  • S110
  • S128
  • S146
  • S147 (engine harn, near egr breakout)
  • S185
  • S186
  • S212 (i/p harn, behind center of dash)
  • S243
  • S244
  • S268
  • S298
  • Sw sig
  • Tan
  • Underhood fuse-relay
  • Underhood fuse-relay center
  • Valve ctrl
  • Vehicle control module (left side of engine compt)
  • Water valve (suburban, utility, crew cab only) (right center of intake area)

5.0L (VIN M), Compressor Wiring Diagram for GMC Cab & Chassis K2500 1998

5.0L (VIN M), Compressor Wiring Diagram for GMC Cab  Chassis K2500 1998 https://portal-diagnostov.com/license.html
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List of elements for 5.0L (VIN M), Compressor Wiring Diagram for GMC Cab & Chassis K2500 1998:

  • (engine harn, near diode)
  • 22 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 high pressure cutout switch (on a/c compressor)
  • A/c low pressure cutout switch (on a/c compressor)
  • A/c req
  • A/c switch
  • Blower switch
  • Diode
  • Fuse block
  • G119 (top right side of cylinder head)
  • G120 (right side of engine)
  • Hot in run
  • Hot in run or start
  • Htr a/c fuse 12 25a
  • Hvac control module
  • Ign e fuse 10a
  • Ignition
  • Near egr valve breakout)
  • Off
  • Pnk
  • S146 (eng harn, pnk
  • S185
  • S186
  • S268 (i/p harn, behind center of dash)
  • Sw sig
  • Underhood fuse-relay center
  • Vehicle control module (left side of engine compt)

Heater Wiring Diagram for GMC Cab & Chassis K2500 1998

Heater Wiring Diagram for GMC Cab  Chassis K2500 1998 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
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List of elements for Heater Wiring Diagram for GMC Cab & Chassis K2500 1998:

  • (hvac harn, 8 cm from recirc door breakout) s244
  • (i/p harn, 24 cm from i/p cluster breakout)
  • (right side of dash) g201
  • Air temp dr sensor
  • Battery
  • Blower fuse 3 50a
  • Blower motor (under right side of dash)
  • Blower resistor (on blower motor housing)
  • Blower switch
  • Defogger element
  • Front mode door motor (on front a/c-heater housing)
  • Front temperature door motor (on front a/c-heater housing)
  • Fuse block
  • G202 (behind left 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
  • Ignition
  • Illumination
  • Interior lights system
  • Mode signal
  • Off
  • Rear defogger system
  • Recirc ctrl
  • Recirculation door motor (on front a/c-heater housing)
  • Red
  • S110 (engine harness, near ebcm breakout)
  • S243 (hvac harn, 4 cm from recirc door breakout)
  • S268 (i/p harness, behind center of dash)
  • S298
  • Tan
  • Underhood fuse-relay center

5.7L

5.7L (VIN R), A/C Wiring Diagram for GMC Cab & Chassis K2500 1998

5.7L (VIN R), AC Wiring Diagram for GMC Cab  Chassis K2500 1998 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Obtenha acesso a todos os diagramas de fiação do carroDownload PDF file

List of elements for 5.7L (VIN R), A/C Wiring Diagram for GMC Cab & Chassis K2500 1998:

  • (engine harn, near diode)
  • (engine harness, 22 cm from ebcm breakout)
  • (engine harness, near ebcm breakout)
  • (engine harness, near egr valve breakout)
  • (exc 4.3 l)
  • (fwd lamps harn, 5 cm from right headlamp breakout)
  • (hvac harness, 4 cm from recirc door breakout)
  • (hvac harness, 8 cm from recirc door breakout)
  • (i/p harn, 28 cm from cluster breakout)
  • (i/p harness, behind center of dash)
  • (right side of dash)
  • 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 ctrl
  • A/c disable
  • A/c high pressure cutout switch (on a/c compressor)
  • A/c low pressure cutout switch (on a/c compressor)
  • A/c req
  • A/c switch
  • Air temp dr sensor
  • Aux fan ctrl
  • Aux fan fuse 30a
  • Auxiliary cooling fan motor
  • Auxiliary cooling fan relay (exc 4.3l) (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
  • Center
  • Defogger element
  • Diode
  • Front mode door motor (on front a/c-heater housing)
  • Front temperature door motor (on front a/c-heater housing)
  • Fuse block
  • G101 (right front of engine compartment)
  • G119 (top right side of cylinder head)
  • G120 (right side of engine)
  • G201
  • G202 (behind left side of dash)
  • Ground
  • High blower relay (on top of front a/c-heater housing)
  • Hot at all times
  • Hot in run
  • Hot in run or start
  • Htr a/c fuse 12 25a
  • Hvac control module
  • Ign e fuse 10a
  • Ignition
  • Illumination
  • Interior lights system
  • Mode signal
  • Off
  • Pnk
  • Rear defogger system
  • Recirculation door motor (on front a/c-heater housing)
  • Red
  • Relay ctrl
  • S103
  • S110
  • S128
  • S146
  • S147 (engine harn, near egr breakout)
  • S185
  • S186
  • S212 (i/p harn, behind center of dash)
  • S243
  • S244
  • S268
  • S298
  • Sw sig
  • Tan
  • Underhood fuse-relay
  • Underhood fuse-relay center
  • Valve ctrl
  • Vehicle control module (left side of engine compt)
  • Water valve (suburban, utility, crew cab only) (right center of intake area)

5.7L (VIN R), Compressor Wiring Diagram for GMC Cab & Chassis K2500 1998

5.7L (VIN R), Compressor Wiring Diagram for GMC Cab  Chassis K2500 1998 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Obtenha acesso a todos os diagramas de fiação do carroDownload PDF file

List of elements for 5.7L (VIN R), Compressor Wiring Diagram for GMC Cab & Chassis K2500 1998:

  • (engine harn, near diode)
  • 22 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 high pressure cutout switch (on a/c compressor)
  • A/c low pressure cutout switch (on a/c compressor)
  • A/c req
  • A/c switch
  • Blower switch
  • Diode
  • Fuse block
  • G119 (top right side of cylinder head)
  • G120 (right side of engine)
  • Hot in run
  • Hot in run or start
  • Htr a/c fuse 12 25a
  • Hvac control module
  • Ign e fuse 10a
  • Ignition
  • Near egr valve breakout)
  • Off
  • Pnk
  • S146 (eng harn, pnk
  • S185
  • S186
  • S268 (i/p harn, behind center of dash)
  • Sw sig
  • Underhood fuse-relay center
  • Vehicle control module (left side of engine compt)

Heater Wiring Diagram for GMC Cab & Chassis K2500 1998

Heater Wiring Diagram for GMC Cab  Chassis K2500 1998 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Obtenha acesso a todos os diagramas de fiação do carroDownload PDF file

List of elements for Heater Wiring Diagram for GMC Cab & Chassis K2500 1998:

  • (hvac harn, 8 cm from recirc door breakout) s244
  • (i/p harn, 24 cm from i/p cluster breakout)
  • (right side of dash) g201
  • Air temp dr sensor
  • Battery
  • Blower fuse 3 50a
  • Blower motor (under right side of dash)
  • Blower resistor (on blower motor housing)
  • Blower switch
  • Defogger element
  • Front mode door motor (on front a/c-heater housing)
  • Front temperature door motor (on front a/c-heater housing)
  • Fuse block
  • G202 (behind left 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
  • Ignition
  • Illumination
  • Interior lights system
  • Mode signal
  • Off
  • Rear defogger system
  • Recirc ctrl
  • Recirculation door motor (on front a/c-heater housing)
  • Red
  • S110 (engine harness, near ebcm breakout)
  • S243 (hvac harn, 4 cm from recirc door breakout)
  • S268 (i/p harness, behind center of dash)
  • S298
  • Tan
  • Underhood fuse-relay center

6.5L

6.5L (VIN F), A/C Wiring Diagram for GMC Cab & Chassis K2500 1998

6.5L (VIN F), AC Wiring Diagram for GMC Cab  Chassis K2500 1998 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Obtenha acesso a todos os diagramas de fiação do carroDownload PDF file

List of elements for 6.5L (VIN F), A/C Wiring Diagram for GMC Cab & Chassis K2500 1998:

  • (engine harn, 30 cm from breakout to ebcm)
  • (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) g201
  • 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 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 sensor
  • Aux fan ctrl
  • Battery
  • Blower fuse 3 50a
  • Blower motor
  • Blower resistor (under right side of dash, on heater housing)
  • Blower switch
  • Center
  • Defogger element
  • Diode
  • Front mode door motor (under dash on heater- a/c case)
  • Front temperature door motor (under dash on heater- a/c case)
  • Fuse block
  • G120 (right side of engine)
  • G202 (behind left side of dash)
  • Ground
  • Heater and a/c control module
  • High blower relay (under dash on top of heater-a/c case)
  • Hot at all times
  • Hot in run
  • Hot in run or start
  • Htr-a/c fuse 12 25a
  • Ign 1 fuse 10a
  • Ignition
  • Illumination
  • Interior lights system
  • Mode signal
  • Off
  • Pnk
  • Powertrain control module (left rear of engine compt)
  • Rear defogger system
  • Recirculation door motor (under dash on heater- a/c case)
  • Red
  • S107
  • S110
  • S147 (engine harn, 4 cm from starter motor breakout)
  • S185
  • S186
  • S212 (i/p harn, behind center of dash)
  • S243
  • S244
  • S268
  • S298
  • Tan
  • Underhood fuse-relay

6.5L (VIN F), Compressor Wiring Diagram for GMC Cab & Chassis K2500 1998

6.5L (VIN F), Compressor Wiring Diagram for GMC Cab  Chassis K2500 1998 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Obtenha acesso a todos os diagramas de fiação do carroDownload PDF file

List of elements for 6.5L (VIN F), Compressor Wiring Diagram for GMC Cab & Chassis K2500 1998:

  • (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
  • Aux fan ctrl
  • Blower switch
  • Diode
  • Fuse block
  • G120 (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 (left rear of engine compt)
  • Recirculation door motor (under dash, on heater- a/c case)
  • S185
  • S186
  • S268 (i/p harn, behind center of dash)
  • Underhood fuse-relay center

6.5L (VIN S), A/C Wiring Diagram for GMC Cab & Chassis K2500 1998

6.5L (VIN S), AC Wiring Diagram for GMC Cab  Chassis K2500 1998 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Obtenha acesso a todos os diagramas de fiação do carroDownload PDF file

List of elements for 6.5L (VIN S), A/C Wiring Diagram for GMC Cab & Chassis K2500 1998:

  • (engine harn, 30 cm from breakout to ebcm)
  • (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) g201
  • 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 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 sensor
  • Aux fan ctrl
  • Battery
  • Blower fuse 3 50a
  • Blower motor
  • Blower resistor (under right side of dash, on heater housing)
  • Blower switch
  • Center
  • Defogger element
  • Diode
  • Front mode door motor (under dash on heater- a/c case)
  • Front temperature door motor (under dash on heater- a/c case)
  • Fuse block
  • G120 (right side of engine)
  • G202 (behind left side of dash)
  • Ground
  • Heater and a/c control module
  • High blower relay (under dash on top of heater-a/c case)
  • Hot at all times
  • Hot in run
  • Hot in run or start
  • Htr-a/c fuse 12 25a
  • Ign 1 fuse 10a
  • Ignition
  • Illumination
  • Interior lights system
  • Mode signal
  • Off
  • Pnk
  • Powertrain control module (left rear of engine compt)
  • Rear defogger system
  • Recirculation door motor (under dash on heater- a/c case)
  • Red
  • S107
  • S110
  • S147 (engine harn, 4 cm from starter motor breakout)
  • S185
  • S186
  • S212 (i/p harn, behind center of dash)
  • S243
  • S244
  • S268
  • S298
  • Tan
  • Underhood fuse-relay

6.5L (VIN S), Compressor Wiring Diagram for GMC Cab & Chassis K2500 1998

6.5L (VIN S), Compressor Wiring Diagram for GMC Cab  Chassis K2500 1998 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Obtenha acesso a todos os diagramas de fiação do carroDownload PDF file

List of elements for 6.5L (VIN S), Compressor Wiring Diagram for GMC Cab & Chassis K2500 1998:

  • (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
  • Aux fan ctrl
  • Blower switch
  • Diode
  • Fuse block
  • G120 (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 (left rear of engine compt)
  • Recirculation door motor (under dash, on heater- a/c case)
  • S185
  • S186
  • S268 (i/p harn, behind center of dash)
  • Underhood fuse-relay center

Heater Wiring Diagram for GMC Cab & Chassis K2500 1998

Heater Wiring Diagram for GMC Cab  Chassis K2500 1998 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Obtenha acesso a todos os diagramas de fiação do carroDownload PDF file

List of elements for Heater Wiring Diagram for GMC Cab & Chassis K2500 1998:

  • (hvac harn, 8 cm from recirc door breakout) s244
  • (i/p harn, 24 cm from i/p cluster breakout)
  • (right side of dash) g201
  • Air temp dr sensor
  • Battery
  • Blower fuse 3 50a
  • Blower motor (under right side of dash)
  • Blower resistor (on blower motor housing)
  • Blower switch
  • Defogger element
  • Front mode door motor (on front a/c-heater housing)
  • Front temperature door motor (on front a/c-heater housing)
  • Fuse block
  • G202 (behind left 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
  • Ignition
  • Illumination
  • Interior lights system
  • Mode signal
  • Off
  • Rear defogger system
  • Recirc ctrl
  • Recirculation door motor (on front a/c-heater housing)
  • Red
  • S110 (engine harness, near ebcm breakout)
  • S243 (hvac harn, 4 cm from recirc door breakout)
  • S268 (i/p harness, behind center of dash)
  • S298
  • Tan
  • Underhood fuse-relay center