AIR CONDITIONING
4.3L
4.3L (VIN W), Air Conditioning Wiring Diagrams for GMC Forward Control P3500 1997
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List of elements for 4.3L (VIN W), Air Conditioning Wiring Diagrams for GMC Forward Control P3500 1997:
- (engine harn, 23 cm from breakout to maf sensor)
- (engine harness, near bulkhead grommet)
- (engine harness, near maf sensor)
- (provisions for body builder hvac system)
- A/c compressor clutch
- A/c compressor clutch relay (engine bulkhead relay bracket)
- A/c compressor high pressure cutoff switch (rear of compressor)
- A/c compressor refrigerant pressure switch (a/c accumulator)
- A/c compressor refrigerant pressure switch (rear of compressor)
- A/c enable
- A/c ground
- A/c request
- Diode
- Eng-bat fuse 15a
- G112 (rear of left cylinder head)
- G200 (left interior bulkhead)
- Gauges fuse 20a
- Hot at all times
- Hot in run or start
- I/p fuse box
- Pnk
- R100 (engine harness, 30 cm from break-out to maf
- S110
- S125 (engine harness, 13 cm from a/c high pressure switch breakout)
- S132 (engine harness, near maf sensor)
- S142
- S143
- S144 (engine harness, near bulkhead grommet)
- Sensor)
- Vehicle control module (left radiator support)
5.7L
5.7L (VIN R), Air Conditioning Wiring Diagrams for GMC Forward Control P3500 1997
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List of elements for 5.7L (VIN R), Air Conditioning Wiring Diagrams for GMC Forward Control P3500 1997:
- (engine harn, 23 cm from breakout to maf sensor)
- (engine harness, near bulkhead grommet)
- (engine harness, near maf sensor)
- (provisions for body builder hvac system)
- A/c compressor clutch
- A/c compressor clutch relay (engine bulkhead relay bracket)
- A/c compressor high pressure cutoff switch (rear of compressor)
- A/c compressor refrigerant pressure switch (a/c accumulator)
- A/c compressor refrigerant pressure switch (rear of compressor)
- A/c enable
- A/c ground
- A/c request
- Diode
- Eng-bat fuse 15a
- G112 (rear of left cylinder head)
- G200 (left interior bulkhead)
- Gauges fuse 20a
- Hot at all times
- Hot in run or start
- I/p fuse box
- Pnk
- R100 (engine harness, 30 cm from break-out to maf
- S110
- S125 (engine harness, 13 cm from a/c high pressure switch breakout)
- S132 (engine harness, near maf sensor)
- S142
- S143
- S144 (engine harness, near bulkhead grommet)
- Sensor)
- Vehicle control module (left radiator support)
6.5L
6.5L (VIN F), Air Conditioning Wiring Diagrams for GMC Forward Control P3500 1997
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List of elements for 6.5L (VIN F), Air Conditioning Wiring Diagrams for GMC Forward Control P3500 1997:
- (body builder installed)
- (engine harn, 20 cm from cruise control module)
- (provisions for body builder hvac system)
- A/c compressor clutch
- A/c compressor clutch relay (right side of driver's island)
- A/c compressor high pressure cutoff switch (in high pressure line)
- A/c compressor refrigerant pressure switch (rear of compressor)
- A/c enable
- A/c request
- Diode
- Eng-bat fuse 15a
- G206 (below driver's island)
- Gauges fuse 20a
- Hot at all times
- Hot in run or start
- I/p fuse box
- Pnk
- Powertrain control module (left side of driver's island)
- R100 (engine harness, 30 cm from break-out to maf
- S115 (engine harness, near bulkhead grommet)
- S122 (engine harness, 15 cm from a/c compressor
- S123 (engine harness, 15 cm from a/c compressor clutch)
- S126
- S140
- S141 (i/p harness, near bulkhead grommet)
- S203 (i/p harness, near bulkhead grommet)
- Sensor)
6.5L (VIN Y), Air Conditioning Wiring Diagrams for GMC Forward Control P3500 1997
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List of elements for 6.5L (VIN Y), Air Conditioning Wiring Diagrams for GMC Forward Control P3500 1997:
- (engine harness, 4 cm from electronic brake control module)
- (provisions for body builder hvac system)
- A/c compressor clutch
- A/c compressor clutch relay (engine bulkhead relay bracket)
- A/c compressor high pressure cutoff switch (rear of compressor)
- A/c compressor refrigerant pressure switch (rear of compressor)
- Diode
- Eng-bat fuse 15a
- G200 (left interior bulkhead)
- Hot at all times
- I/p fuse box
- S110
- S125 (engine harness, 13 cm from a/c high pressure switch breakout)
- S144 (engine harness, near bulkhead grommet)
7.4L
7.4L (VIN J), Air Conditioning Wiring Diagrams for GMC Forward Control P3500 1997
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List of elements for 7.4L (VIN J), Air Conditioning Wiring Diagrams for GMC Forward Control P3500 1997:
- (body builder installed)
- (engine harn, 20 cm from cruise control module)
- (provisions for body builder hvac system)
- A/c compressor clutch
- A/c compressor clutch relay (right side of driver's island)
- A/c compressor high pressure cutoff switch (rear of compressor)
- A/c compressor refrigerant pressure switch (a/c accumulator)
- A/c enable
- A/c ground
- A/c request
- Diode
- Eng-bat fuse 15a
- G206 (below driver's island)
- Gauges fuse 20a
- Hot at all times
- Hot in run or start
- I/p fuse box
- Pnk
- R100 (engine harness, 30 cm from break-out to maf
- S115 (engine harness, near bulkhead grommet)
- S122 (engine harness, 15 cm from a/c compressor
- S123 (engine harness, 15 cm from a/c compressor clutch)
- S126
- S140
- S141 (i/p harness, near bulkhead grommet)
- S203 (i/p harness, near bulkhead grommet)
- Sensor)
- Vehicle control module (left radiator support)
7.4L (VIN N), Air Conditioning Wiring Diagrams for GMC Forward Control P3500 1997
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List of elements for 7.4L (VIN N), Air Conditioning Wiring Diagrams for GMC Forward Control P3500 1997:
- (engine harness, 15 cm from compressor clutch)
- (i/p harness, 41 cm from bulkhead grommet)
- (provisions for body builder hvac system)
- A/c compressor clutch
- A/c compressor clutch relay (right side of driver's island)
- A/c compressor high pressure cutoff switch (rear of compressor)
- A/c compressor refrigerant pressure switch (rear of compressor)
- Diode
- Eng-bat fuse 15a
- G206 (below driver's island)
- Hot at all times
- I/p fuse box
- S122
- S123 (engine harness, 15 cm from a/c compressor clutch)
- S203