AIR CONDITIONING – GMC Sierra 1500 HD 2002 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Compressor Wiring Diagram for GMC Sierra 1500 HD 2002

List of elements for Compressor Wiring Diagram for GMC Sierra 1500 HD 2002:

• (diesel)
• (gasoline)
• (right side of accumulator)
• A/c compressor clutch
• A/c compressor clutch relay
• A/c fuse 10a
• A/c high pressure recirculation switch (in a/c muffler hose)
• A/c high pressure switch (rear of compressor)
• A/c request
• A/c switch
• G100 (on left radiator support bracket)
• G102 (silverado/sierra) g105 (others) (4.3l: right front of engine, 4.8l, 5.3l, 6.0l, 8.1l: left side of engine, 6.6l: right side of engine)
• Hot at all times
• Hot in run or start
• Hvac control module (behind center of dash)
• Ign e fuse 10a
• Powertrain control module (pcm) (left front of engine compt)
• Press switch a/c high
• Relay ctrl a/c comp
• S101 (forward lamp harn)
• S102 (gasoline) s120 (diesel) (engine harn)
• Underhood fuse block (left side of engine compt, near battery)

Heater Wiring Diagram for GMC Sierra 1500 HD 2002

List of elements for Heater Wiring Diagram for GMC Sierra 1500 HD 2002:

• Blower motor
• Blower motor relay
• Blower motor resistor assembly (on hvac module, near blower motor)
• Blower motor switch
• D12
• Frt hvac fuse 30a
• G200 (right side of dash, at "a" pillar)
• Hot at all times
• Hot in run
• Htr-a/c fuse 25a
• Interior lights system
• Left i/p fuse block (lower left side of dash)
• Off
• Tan
• Underhood fuse block (left side of engine compt, near battery)

Manual A/C Wiring Diagram, Base for GMC Sierra 1500 HD 2002

List of elements for Manual A/C Wiring Diagram, Base for GMC Sierra 1500 HD 2002:

• (diesel)
• (gasoline)
• A off mtr ctrl
• A/c comp relay ctrl
• A/c compressor clutch
• A/c compressor clutch relay
• A/c fuse 10a
• A/c high pressure recirculation switch (in a/c muffler hose)
• A/c high pressure switch (rear of compressor)
• A/c low pressure switch (right side of accumulator)
• A/c request
• A/c switch
• Air temperature actuator (bottom center of hvac control assembly)
• B mode act ctrl
• Blower motor (under right side of dash)
• Blower motor relay assembly (on hvac module, near blower motor)
• Blower relay
• Body relay block (under left side of dash)
• C ground
• Ctrl recirc door
• D recir act ctrl
• D12
• Defogger system
• E i/p lamp sply
• F temp act ctrl
• Frt hvac fuse 30a
• G act pos sig
• G100 (on left radiator support bracket)
• G102 (4.3l: right front of engine, 4.8l, 5.3l, 6.0l: left side of engine, 8.1l: left side of engine, 6.6l right side of engine)
• G200 (right side of dash, at "a" pillar)
• G203 (on upper left dash at "a" pillar)
• H 5v ref
• High
• Hot at all times
• Hot in run
• Hot in run or start
• Htr-a/c fuse 25a
• Hvac 1 fuse 10a
• Hvac control module (behind center of dash)
• Ign e fuse 10a
• Interior lights system
• J rear defog rly
• K ign 3 vol
• L a/c request
• Left i/p fuse block (lower left side of dash)
• Low
• M act pos sig
• Mode actuator (left side of hvac module)
• Off
• Powertrain control module (pcm) (left front of engine of engine compt)
• Press sw a/c high
• Recirculation actuator (top of hvac module)
• Red
• S101 (forward lamp harness)
• Sp203
• Tan
• Underhood fuse block (left side of engine compt, near battery)

Manual A/C Wiring Diagram, Up Level for GMC Sierra 1500 HD 2002

List of elements for Manual A/C Wiring Diagram, Up Level for GMC Sierra 1500 HD 2002:

• (diesel)
• (gasoline)
• A off mtr ctrl
• A/c compressor clutch
• A/c compressor clutch relay
• A/c fuse 10a
• A/c high press sw
• A/c high pressure recirculating switch (in a/c muffler hose)
• A/c high pressure switch (rear of compressor)
• A/c low pressure switch (right side of accumulator)
• A/c request
• A/c switch
• Air temperature actuator (bottom center of hvac module)
• B mode act ctrl
• Blower motor (under right side of dash)
• Blower motor resistor assembly (on hvac module, near blower motor)
• Blower relay
• C ground
• D recir act ctrl
• D12
• Defogger system
• E i/p lamp sply
• F temp act ctrl
• Frt hvac fuse 30a
• G act pos sig
• G100 (on left radiator support bracket)
• G102 (silverado/sierra) g105 (others) (4.3l: right front of engine, 4.8l, 5.3l, 6.0l, 8.1l: left side of engine, 6.6l: right side of engine)
• G200 (right side dash, at "a" pillar)
• H 5v ref
• Hot at all times
• Hot in run
• Hot in run or start
• Htr-a/c fuse 25a
• Hvac 1 fuse 10a
• Hvac control module (behind center of dash)
• Ign e fuse 10a
• Interior lights system
• J rear defog rly
• K ign 3 vol
• L a/c request
• Left i/p fuse block (lower left side of dash)
• M act pos sig
• Mode actuator (left side of hvac module)
• Off
• Powertrain control module (pcm) (left front of engine compt)
• Recirc door ctrl
• Recirculation actuator (top of hvac module)
• Red
• Relay ctrl a/c comp
• Right i/p fuse block (lower right side of dash)
• S101 (forward lamp harness)
• Tan
• Underhood fuse block (left side of engine compt, near battery)