AIR CONDITIONING – GMC Sonoma 1998 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

2.2L

2.2L (VIN 4), A/C Wiring Diagram for GMC Sonoma 1998

List of elements for 2.2L (VIN 4), A/C Wiring Diagram for GMC Sonoma 1998:

• +5v
• A/c
• A/c compressor clutch
• A/c compressor clutch diode
• A/c compressor clutch relay
• A/c fuse 10a
• A/c on
• A/c pressure
• A/c refrigerant pressure sensor (on a/c evaporator tube)
• Air temperature valve electric actuator (top of heater assembly)
• Bi-lv
• Blend
• Blower motor
• Blower motor relay (center rear of engine compt)
• Blower motor resistor (right rear of engine compartment)
• Blower switch
• C tan
• Clutch control
• Def
• G116 (left rear of engine compartment)
• G120 (right side of engine)
• G202 (behind left side of dash)
• G203 (behind right side of dash)
• Ground
• Heat
• Hot at all times
• Hot in run
• Hot in run or start
• Hvac 1 fuse 21 10a
• Hvac controller
• Hvac fuse 30a
• Hvac fuse 9 20a
• I/p fuse block
• Ign e fuse 10a
• Input
• Max
• Mode switch
• Nca
• Off
• Powertrain control module (right side of eng compt)
• Red
• S103 (engine harn, 20 cm from a/c compressor connector)
• S104 (engine harn, 20 cm from a/c compressor connector)
• S215 (i/p harness, 10 cm into hvac controller breakout)
• Tan
• Temperature selector
• Underhood bussed electrical center
• Vent

2.2L (VIN 4), Compressor Wiring Diagram for GMC Sonoma 1998

List of elements for 2.2L (VIN 4), Compressor Wiring Diagram for GMC Sonoma 1998:

• +5v
• A/c
• A/c compressor clutch
• A/c compressor clutch diode
• A/c compressor clutch relay
• A/c fuse 10a
• A/c on input
• A/c pressure c1
• A/c refrigerant pressure sensor (on a/c evaporator tube)
• Bi-lv
• Blend
• C2 b4
• Clutch control c2
• Connector)
• Def
• G120 (right side of engine)
• Ground
• Heat
• Hot at all times
• Hot in run
• Hot in run or start
• Hvac control module
• Hvac fuse 9 20a
• I/p fuse block
• Ign e fuse 10a
• Max
• Nca
• Off
• Powertrain control module (right side of engine compt)
• Underhood bussed electrical center
• Vent

Heater Wiring Diagram for GMC Sonoma 1998

List of elements for Heater Wiring Diagram for GMC Sonoma 1998:

• (i/p harness, 10 cm into hvac controller breakout)
• Air temperature valve electric actuator (top of heater assembly)
• Bi- level
• Blend
• Blower motor
• Blower motor relay (center rear of engine compt)
• Blower motor resistor (right rear of engine compartment)
• Blower switch
• C 1995 vftc
• C tan
• Def
• G116 (left rear of engine compartment)
• G202 (behind left side of dash)
• G203 (behind right side of dash)
• Heat
• Hot at all times
• Hot in run
• Hvac 1 fuse 21 10a
• Hvac controller
• Hvac fuse 30a
• Hvac fuse 9 20a
• I/p fuse block
• Off
• S118 (body harness, 25 cm from vcm breakout)
• S215
• Tan
• Temperature selector
• Underhood bussed electrical center
• Vent

4.3L

4.3L (VIN W), A/C Wiring Diagram, Manual A/C for GMC Sonoma 1998

List of elements for 4.3L (VIN W), A/C Wiring Diagram, Manual A/C for GMC Sonoma 1998:

• A/c
• A/c compressor clutch
• A/c compressor clutch diode
• A/c compressor clutch relay
• A/c compressor high pressure switch (rear of a/c compressor)
• A/c compressor pressure cycling switch (at a/c accumulator)
• A/c fuse 10a
• A/c on input
• Air temperature valve electric actuator (top of heater assembly)
• Bi-lv
• Blend
• Blower motor
• Blower motor relay (center rear of engine compt)
• Blower motor resistor (right rear of engine compartment)
• Blower switch
• C tan
• Clutch control
• Cycling switch input
• Def
• G114 (left rear of engine)
• G116 (left rear of engine compartment)
• G120 (right side of engine)
• G202 (behind left side of dash)
• G203 (behind right side of dash)
• Heat
• Hot at all times
• Hot in run
• Hot in run or start
• Hvac 1 fuse 21 10a
• Hvac controller
• Hvac fuse 30a
• Hvac fuse 9 20a
• I/p fuse block
• Ign e fuse 10a
• Max
• Mode switch
• Nca
• Off
• Pickup
• Red
• S103 (engine harn, 20 cm from a/c compressor connector)
• S104 (engine harn, 20 cm from a/c compressor connector)
• S106 (engine harn, 7 cm from heated oxygen sens0r breakout)
• S118 (body harness, 25 cm from vcm breakout)
• S215 (i/p harness, 10 cm into hvac controller breakout)
• S217 (i/p harn, 6 cm into hvac controller breakout)
• Tan
• Temperature selector
• Underhood bussed electrical center
• Utilitiy
• Vehicle control module (right side of eng compt)
• Vent

4.3L (VIN W), Compressor Wiring Diagram, Manual A/C for GMC Sonoma 1998

List of elements for 4.3L (VIN W), Compressor Wiring Diagram, Manual A/C for GMC Sonoma 1998:

• A/c
• A/c compressor clutch
• A/c compressor clutch diode
• A/c compressor clutch relay
• A/c compressor high pressure switch (rear of a/c compressor)
• A/c compressor low pressure switch (at a/c accumulator)
• A/c fuse 10a
• A/c on input
• Bi-lv
• Blend
• C2 b4
• Clutch control
• Connector)
• Cycling sw input c3
• Def
• G114 (left rear of engine)
• G120 (right side of engine)
• Heat
• Heated oxygen sensor breakout)
• Hot at all times
• Hot in run
• Hot in run or start
• Hvac control module
• Hvac fuse 9 20a
• I/p fuse block
• Ign e fuse 10a
• Max
• Nca
• Off
• Underhood bussed electrical center
• Vehicle control module (right side of engine compt)
• Vent

4.3L (VIN X), A/C Wiring Diagram, Manual A/C for GMC Sonoma 1998

List of elements for 4.3L (VIN X), A/C Wiring Diagram, Manual A/C for GMC Sonoma 1998:

• A/c
• A/c compressor clutch
• A/c compressor clutch diode
• A/c compressor clutch relay
• A/c compressor high pressure switch (rear of a/c compressor)
• A/c compressor pressure cycling switch (at a/c accumulator)
• A/c fuse 10a
• A/c on input
• Air temperature valve electric actuator (top of heater assembly)
• Bi-lv
• Blend
• Blower motor
• Blower motor relay (center rear of engine compt)
• Blower motor resistor (right rear of engine compartment)
• Blower switch
• C tan
• Clutch control
• Cycling switch input
• Def
• G114 (left rear of engine)
• G116 (left rear of engine compartment)
• G120 (right side of engine)
• G202 (behind left side of dash)
• G203 (behind right side of dash)
• Heat
• Hot at all times
• Hot in run
• Hot in run or start
• Hvac 1 fuse 21 10a
• Hvac controller
• Hvac fuse 30a
• Hvac fuse 9 20a
• I/p fuse block
• Ign e fuse 10a
• Max
• Mode switch
• Nca
• Off
• Pickup
• Red
• S103 (engine harn, 20 cm from a/c compressor connector)
• S104 (engine harn, 20 cm from a/c compressor connector)
• S106 (engine harn, 7 cm from heated oxygen sens0r breakout)
• S118 (body harness, 25 cm from vcm breakout)
• S215 (i/p harness, 10 cm into hvac controller breakout)
• S217 (i/p harn, 6 cm into hvac controller breakout)
• Tan
• Temperature selector
• Underhood bussed electrical center
• Utilitiy
• Vehicle control module (right side of eng compt)
• Vent

4.3L (VIN X), Compressor Wiring Diagram, Manual A/C for GMC Sonoma 1998

List of elements for 4.3L (VIN X), Compressor Wiring Diagram, Manual A/C for GMC Sonoma 1998:

• A/c
• A/c compressor clutch
• A/c compressor clutch diode
• A/c compressor clutch relay
• A/c compressor high pressure switch (rear of a/c compressor)
• A/c compressor low pressure switch (at a/c accumulator)
• A/c fuse 10a
• A/c on input
• Bi-lv
• Blend
• C2 b4
• Clutch control
• Connector)
• Cycling sw input c3
• Def
• G114 (left rear of engine)
• G120 (right side of engine)
• Heat
• Heated oxygen sensor breakout)
• Hot at all times
• Hot in run
• Hot in run or start
• Hvac control module
• Hvac fuse 9 20a
• I/p fuse block
• Ign e fuse 10a
• Max
• Nca
• Off
• Underhood bussed electrical center
• Vehicle control module (right side of engine compt)
• Vent

Heater Wiring Diagram for GMC Sonoma 1998

List of elements for Heater Wiring Diagram for GMC Sonoma 1998:

• (i/p harness, 10 cm into hvac controller breakout)
• Air temperature valve electric actuator (top of heater assembly)
• Bi- level
• Blend
• Blower motor
• Blower motor relay (center rear of engine compt)
• Blower motor resistor (right rear of engine compartment)
• Blower switch
• C 1995 vftc
• C tan
• Def
• G116 (left rear of engine compartment)
• G202 (behind left side of dash)
• G203 (behind right side of dash)
• Heat
• Hot at all times
• Hot in run
• Hvac 1 fuse 21 10a
• Hvac controller
• Hvac fuse 30a
• Hvac fuse 9 20a
• I/p fuse block
• Off
• S118 (body harness, 25 cm from vcm breakout)
• S215
• Tan
• Temperature selector
• Underhood bussed electrical center
• Vent