AIR CONDITIONING – Chevrolet Avalanche 2500 2002 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Chevrolet Avalanche 2500 2002

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Chevrolet Avalanche 2500 2002:

• (6.0l, 8.1l: left side of engine, 6.6l: right side of engine)
• 5 volt ref
• A/c comp relay ctrl
• A/c compressor clutch
• A/c compressor clutch relay
• A/c fuse 10a
• A/c high pressure cutout switch (on a/c compressor)
• A/c high pressure recirculation switch (in a/c muffler hose)
• A/c low pressure switch (right side of accumulator)
• A/c request
• A/c switch
• Act pos sig
• Actuator (near bottom center of hvac assembly)
• Amb temp sig
• Battery
• Blwr mtr ctrl
• C10
• C11
• C12
• C13
• C14
• C15
• C16
• Class 2 data
• D10
• D11
• D12
• D13
• D14
• D15
• D16
• Data link connector (dlc) (under left side of dash)
• Defogger system
• Dr pos sig
• Front blower motor assembly (right side of dash)
• Frt hvac fuse 30a
• G100 (on left radiator support bracket)
• G102
• G200 (right side dash, at "a" pillar)
• Ground
• Hot at all times
• Hot in run
• Hot in run or start
• Hvac 1 fuse 10a
• Hvac control module (behind center of dash)
• I/p junction block (lower right side of dash)
• I/p lamp sply
• Ign 3 volt
• Ign e fuse 10a
• In air temp sig
• Interior lights system
• Left i/p fuse block (lower left side of dash)
• Lo air temp sig
• Mode actuator (left side of hvac module)
• Mode dr ctrl
• Powertrain control module (pcm) (left side of engine compt)
• Press sw a/c high
• Radio fuse 15a
• Recirc dr ctrl
• Recirc dr pos
• Recirculation actuator (top center of hvac module)
• Red
• Right i/p fuse block (lower right side of dash)
• Rr defog rly
• S101 (forward lamp harness)
• S102 (engine harn)
• Sensor rtn
• Solid state
• Splice pack sp205 (left side of dash)
• Sunload sens
• Temp dr ctrl
• Underhood fuse block (left side of engine compt, near battery)
• Up air temp sig

Automatic A/C Wiring Diagram (2 of 2) for Chevrolet Avalanche 2500 2002

List of elements for Automatic A/C Wiring Diagram (2 of 2) for Chevrolet Avalanche 2500 2002:

• Air temperature sensor (lower) (in lower left floor duct assembly)
• Air temperature sensor (upper) (belwo radio, in upper duct)
• Ambient temperature sensor (in right front bumper filler assembly)
• Body relay block (under left side of dash, near kick panel)
• G203 (right side dash, at "a" pillar)
• Hot in run & start
• Ign 1 fuse 10a
• Inside air temperature sensor (in headliner above driver)
• Left i/p fuse block (lower left side of dash)
• Pnk
• Right i/p fuse block (lower right side of dash)
• Splice pack sp203
• Sun load temperature sensor (top center of dash)

Compressor Wiring Diagram for Chevrolet Avalanche 2500 2002

List of elements for Compressor Wiring Diagram for Chevrolet Avalanche 2500 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)

Manual A/C Wiring Diagram for Chevrolet Avalanche 2500 2002

List of elements for Manual A/C Wiring Diagram for Chevrolet Avalanche 2500 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)