GMC Sierra (GMT-900) - Service Manual / Repair Manual - Wiring Diagrams

GMC SIERRA (GMT-900) - WORKSHOP, SERVICE, REPAIR MANUAL - WIRING DIAGRAMS

- English Service Manual and Wiring Diagrams, to car GMC Sierra (GMT-900).
 

CONTENTS:

SERVICE MANUAL

- Antilock Brake System
- Automatic Transmission - 4L60-E, 4L65-E, 4L70-E
- Automatic Transmission - 6L50, 6L80, 6L90
- Automatic Transmission - Allison
- Bumpers and Fascias
- Cellular, Entertainment, and Navigation
- Clutch
- Cruise Control
- Disc Brakes
- Displays and Gages
- Drum Brakes
- Engine Cooling
- Engine Electrical
- Engine Exhaust
- Engine Mechanical - 4.3L
- Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, 7.0L
- Engine Mechanical - 6.2L
- Engine Mechanical - 6.6L
- Fixed and Moveable Windows
- Frame and Underbody
- Front Drive Axle
- Front Suspension
- Heating, Ventilation, and Air Conditioning
- Horns
- HVAC - Manual
- Hydraulic Brakes
- Interior Trim and Paneling
- Lighting
- Maintenance and Lubrication
- Manual Transmission - Tremec 5-Speed (M96)
- Manual Transmission - Tremec 5-Speed (TZ0)
- Mirrors
- Park Brake
- Power Seats
- Power Steering
- Propeller Shaft
- Rear Drive Axle
- Rear Suspension
- Seat Heating and Cooling
- Steering Linkage
- Sunroof
- Supplemental Inflatable Restraints
- Trailer Brake Controls
- Transfer Case - BW 4485-NR3
- Transfer Case - MP 1222, 1225, 1226-NQG
- Transfer Case - MP 1625, 1626-NQF
- Transfer Case - MP 3023, 3024-NQH
- Trouble Shooting - Basic Procedures
- Vehicle Access
- Wheel Drive Shafts
- Wipers and Washers


BODY REPAIR MANUAL

- Bolted Exterior Body Panels and Closures
- Collision Repair
- Exterior Trim
- Instrument Panel and Console Trim
- Interior Trim and Paneling
- Plastic Panel Information and Repair


ELECTRICAL WIRING DIAGRAMS

GMC Sierra 1500

- 1: Automatic A/C Circuit (1 of 3)
- 2: Automatic A/C Circuit (2 of 3)
- 3: Automatic A/C Circuit (3 of 3)
- 4: Compressor Circuit
- 5: Manual A/C Circuit (1 of 3)
- 6: Manual A/C Circuit (2 of 3)
- 7: Manual A/C Circuit (3 of 3)
- 8: Anti-Lock Brake Circuit, W/ JL4 (1 of 2)
- 9: Anti-Lock Brake Circuit, W/ JL4 (2 of 2)
- 10: Anti-Lock Brake Circuit, W/O JL4
- 11: Trailer ABS Circuit
- 12: Anti-theft Circuit
- 13: Body Control Modules Circuit (1 of 3)
- 14: Body Control Modules Circuit (2 of 3)
- 15: Body Control Modules Circuit (3 of 3)
- 16: Computer Data Lines Circuit (1 of 2)
- 17: Computer Data Lines Circuit (2 of 2)
- 18: Cooling Fan Circuit
- 19: 4.3L VIN X, Cruise Control Circuit
- 20: 4.8L VIN C, Cruise Control Circuit
- 21: 5.3L VIN 0, Cruise Control Circuit
- 22: 5.3L VIN 3, Cruise Control Circuit
- 23: 5.3L VIN J, Cruise Control Circuit
- 24: 5.3L VIN M, Cruise Control Circuit
- 25: 6.0L VIN Y, Cruise Control Circuit
- 26: 6.2L VIN 8, Cruise Control Circuit
- 27: Heated Mirrors Circuit, W/ AN3/DL3
- 28: Heated Mirrors Circuit, W/O AN3/DL3
- 29: Rear Defogger Circuit
- 30: 4.3L VIN X, Engine Performance Circuit (1 of 4)
- 31: 4.3L VIN X, Engine Performance Circuit (2 of 4)
- 32: 4.3L VIN X, Engine Performance Circuit (3 of 4)
- 33: 4.3L VIN X, Engine Performance Circuit (4 of 4)
- 34: 4.8L VIN C, Engine Performance Circuit (1 of 5)
- 35: 4.8L VIN C, Engine Performance Circuit (2 of 5)
- 36: 4.8L VIN C, Engine Performance Circuit (3 of 5)
- 37: 4.8L VIN C, Engine Performance Circuit (4 of 5)
- 38: 4.8L VIN C, Engine Performance Circuit (5 of 5)
- 39: 5.3L VIN 0, Engine Performance Circuit (1 of 4)
- 40: 5.3L VIN 0, Engine Performance Circuit (2 of 4)
- 41: 5.3L VIN 0, Engine Performance Circuit (3 of 4)
- 42: 5.3L VIN 0, Engine Performance Circuit (4 of 4)
- 43: 5.3L VIN 3, Engine Performance Circuit (1 of 4)
- 44: 5.3L VIN 3, Engine Performance Circuit (2 of 4)
- 45: 5.3L VIN 3, Engine Performance Circuit (3 of 4)
- 46: 5.3L VIN 3, Engine Performance Circuit (4 of 4)
- 47: 5.3L VIN J, Engine Performance Circuit (1 of 5)
- 48: 5.3L VIN J, Engine Performance Circuit (2 of 5)
- 49: 5.3L VIN J, Engine Performance Circuit (3 of 5)
- 50: 5.3L VIN J, Engine Performance Circuit (4 of 5)
- 51: 5.3L VIN J, Engine Performance Circuit (5 of 5)
- 52: 5.3L VIN M, Engine Performance Circuit (1 of 5)
- 53: 5.3L VIN M, Engine Performance Circuit (2 of 5)
- 54: 5.3L VIN M, Engine Performance Circuit (3 of 5)
- 55: 5.3L VIN M, Engine Performance Circuit (4 of 5)
- 56: 5.3L VIN M, Engine Performance Circuit (5 of 5)
- 57: 6.0L VIN Y, Engine Performance Circuit (1 of 5)
- 58: 6.0L VIN Y, Engine Performance Circuit (2 of 5)
- 59: 6.0L VIN Y, Engine Performance Circuit (3 of 5)
- 60: 6.0L VIN Y, Engine Performance Circuit (4 of 5)
- 61: 6.0L VIN Y, Engine Performance Circuit (5 of 5)
- 62: 6.2L VIN 8, Engine Performance Circuit (1 of 5)
- 63: 6.2L VIN 8, Engine Performance Circuit (2 of 5)
- 64: 6.2L VIN 8, Engine Performance Circuit (3 of 5)
- 65: 6.2L VIN 8, Engine Performance Circuit (4 of 5)
- 66: 6.2L VIN 8, Engine Performance Circuit (5 of 5)
- 67: Backup Lamps Circuit
- 68: Exterior Lamps Circuit (1 of 3)
- 69: Exterior Lamps Circuit (2 of 3)
- 70: Exterior Lamps Circuit (3 of 3)
- 71: Trailer Tow Circuit
- 72: Ground Distribution Circuit (1 of 6)
- 73: Ground Distribution Circuit (2 of 6)
- 74: Ground Distribution Circuit (3 of 6)
- 75: Ground Distribution Circuit (4 of 6)
- 76: Ground Distribution Circuit (5 of 6)
- 77: Ground Distribution Circuit (6 of 6)
- 78: Headlights Circuit
- 79: Horn Circuit
- 80: Instrument Cluster Circuit (1 of 2)
- 81: Instrument Cluster Circuit (2 of 2)
- 82: Courtesy Lamps Circuit, W/ AN3/DL3
- 83: Courtesy Lamps Circuit, W/O AN3/DL3
- 84: Instrument Illumination Circuit (1 of 2)
- 85: Instrument Illumination Circuit (2 of 2)
- 86: Adjustable Pedal Circuit
- 87: Driver"s Memory Seat Circuit (1 of 2)
- 88: Driver"s Memory Seat Circuit (2 of 2)
- 89: Navigation Circuit, W/ Y91 & W/ UQA (1 of 3)
- 90: Navigation Circuit, W/ Y91 & W/ UQA (2 of 3)
- 91: Navigation Circuit, W/ Y91 & W/ UQA (3 of 3)
- 92: Navigation Circuit, W/ Y91 & W/O UQA (1 of 3)
- 93: Navigation Circuit, W/ Y91 & W/O UQA (2 of 3)
- 94: Navigation Circuit, W/ Y91 & W/O UQA (3 of 3)
- 95: Navigation Circuit, W/O Y91 & W/ UQA (1 of 3)
- 96: Navigation Circuit, W/O Y91 & W/ UQA (2 of 3)
- 97: Navigation Circuit, W/O Y91 & W/ UQA (3 of 3)
- 98: Navigation Circuit, W/O Y91 & W/O UQA (1 of 3)
- 99: Navigation Circuit, W/O Y91 & W/O UQA (2 of 3)
- 100: Navigation Circuit, W/O Y91 & W/O UQA (3 of 3)
- 101: Parking Assistant Circuit
- 102: 4.3L VIN X, Power Distribution Circuit (1 of 6)
- 103: 4.3L VIN X, Power Distribution Circuit (2 of 6)
- 104: 4.3L VIN X, Power Distribution Circuit (3 of 6)
- 105: 4.3L VIN X, Power Distribution Circuit (4 of 6)
- 106: 4.3L VIN X, Power Distribution Circuit (5 of 6)
- 107: 4.3L VIN X, Power Distribution Circuit (6 of 6)
- 108: 4.8L VIN C, Power Distribution Circuit (1 of 6)
- 109: 4.8L VIN C, Power Distribution Circuit (2 of 6)
- 110: 4.8L VIN C, Power Distribution Circuit (3 of 6)
- 111: 4.8L VIN C, Power Distribution Circuit (4 of 6)
- 112: 4.8L VIN C, Power Distribution Circuit (5 of 6)
- 113: 4.8L VIN C, Power Distribution Circuit (6 of 6)
- 114: 5.3L VIN 0, Power Distribution Circuit (1 of 6)
- 115: 5.3L VIN 0, Power Distribution Circuit (2 of 6)
- 116: 5.3L VIN 0, Power Distribution Circuit (3 of 6)
- 117: 5.3L VIN 0, Power Distribution Circuit (4 of 6)
- 118: 5.3L VIN 0, Power Distribution Circuit (5 of 6)
- 119: 5.3L VIN 0, Power Distribution Circuit (6 of 6)
- 120: 5.3L VIN 3, Power Distribution Circuit (1 of 6)
- 121: 5.3L VIN 3, Power Distribution Circuit (2 of 6)
- 122: 5.3L VIN 3, Power Distribution Circuit (3 of 6)
- 123: 5.3L VIN 3, Power Distribution Circuit (4 of 6)
- 124: 5.3L VIN 3, Power Distribution Circuit (5 of 6)
- 125: 5.3L VIN 3, Power Distribution Circuit (6 of 6)
- 126: 5.3L VIN J, Power Distribution Circuit (1 of 6)
- 127: 5.3L VIN J, Power Distribution Circuit (2 of 6)
- 128: 5.3L VIN J, Power Distribution Circuit (3 of 6)
- 129: 5.3L VIN J, Power Distribution Circuit (4 of 6)
- 130: 5.3L VIN J, Power Distribution Circuit (5 of 6)
- 131: 5.3L VIN J, Power Distribution Circuit (6 of 6)
- 132: 5.3L VIN M, Power Distribution Circuit (1 of 6)
- 133: 5.3L VIN M, Power Distribution Circuit (2 of 6)
- 134: 5.3L VIN M, Power Distribution Circuit (3 of 6)
- 135: 5.3L VIN M, Power Distribution Circuit (4 of 6)
- 136: 5.3L VIN M, Power Distribution Circuit (5 of 6)
- 137: 5.3L VIN M, Power Distribution Circuit (6 of 6)
- 138: 6.0L VIN Y, Power Distribution Circuit (1 of 6)
- 139: 6.0L VIN Y, Power Distribution Circuit (2 of 6)
- 140: 6.0L VIN Y, Power Distribution Circuit (3 of 6)
- 141: 6.0L VIN Y, Power Distribution Circuit (4 of 6)
- 142: 6.0L VIN Y, Power Distribution Circuit (5 of 6)
- 143: 6.0L VIN Y, Power Distribution Circuit (6 of 6)
- 144: 6.2L VIN 8, Power Distribution Circuit (1 of 6)
- 145: 6.2L VIN 8, Power Distribution Circuit (2 of 6)
- 146: 6.2L VIN 8, Power Distribution Circuit (3 of 6)
- 147: 6.2L VIN 8, Power Distribution Circuit (4 of 6)
- 148: 6.2L VIN 8, Power Distribution Circuit (5 of 6)
- 149: 6.2L VIN 8, Power Distribution Circuit (6 of 6)
- 150: Power Door Locks Circuit, Base
- 151: Power Door Locks Circuit, Premium
- 152: Electrochromic Mirror Circuit
- 153: Power Mirrors Circuit, Manual Foldiing Mirror
- 154: Power Mirrors Circuit, Power Foldiing Mirror (1 of 2)
- 155: Power Mirrors Circuit, Power Foldiing Mirror (2 of 2)
- 156: Adjustable Pedal Circuit
- 157: Driver Power Seat Circuit
- 158: Heated Seats Circuit (1 of 2)
- 159: Heated Seats Circuit (2 of 2)
- 160: Heated Steering Wheel Circuit
- 161: Passenger Power Seat Circuit, 6-Way Power Seat
- 162: Passenger Power Seat Circuit, 8-Way Power Seat
- 163: Power Top/Sunroof Circuit
- 164: Power Windows Circuit, W/ AN3/DL3
- 165: Power Windows Circuit, W/O AN3/DL3
- 166: Sliding Rear Window Circuit
- 167: Radio Circuit, W/ Y91 & W/ UQA (1 of 3)
- 168: Radio Circuit, W/ Y91 & W/ UQA (2 of 3)
- 169: Radio Circuit, W/ Y91 & W/ UQA (3 of 3)
- 170: Radio Circuit, W/ Y91 & W/O UQA (1 of 3)
- 171: Radio Circuit, W/ Y91 & W/O UQA (2 of 3)
- 172: Radio Circuit, W/ Y91 & W/O UQA (3 of 3)
- 173: Radio Circuit, W/O Y91 & W/ UQA (1 of 3)
- 174: Radio Circuit, W/O Y91 & W/ UQA (2 of 3)
- 175: Radio Circuit, W/O Y91 & W/ UQA (3 of 3)
- 176: Radio Circuit, W/O Y91 & W/O UQA (1 of 3)
- 177: Radio Circuit, W/O Y91 & W/O UQA (2 of 3)
- 178: Radio Circuit, W/O Y91 & W/O UQA (3 of 3)
- 179: Shift Interlock Circuit
- 180: 4.3L VIN X, Charging Circuit
- 181: 4.3L VIN X, Starting Circuit
- 182: 4.8L VIN C, Charging Circuit
- 183: 4.8L VIN C, Starting Circuit
- 184: 5.3L VIN 0, Charging Circuit
- 185: 5.3L VIN 0, Starting Circuit
- 186: 5.3L VIN 3, Charging Circuit
- 187: 5.3L VIN 3, Starting Circuit
- 188: 5.3L VIN J, Charging Circuit
- 189: 5.3L VIN J, Starting Circuit
- 190: 5.3L VIN M, Charging Circuit
- 191: 5.3L VIN M, Starting Circuit
- 192: 6.0L VIN Y, Charging Circuit
- 193: 6.0L VIN Y, Starting Circuit
- 194: 6.2L VIN 8, Charging Circuit
- 195: 6.2L VIN 8, Starting Circuit
- 196: Supplemental Restraints Circuit (1 of 2)
- 197: Supplemental Restraints Circuit (2 of 2)
- 198: A/T Circuit (1 of 2)
- 199: A/T Circuit (2 of 2)
- 200: Transfer Case Circuit, 2-Speed Automatic
- 201: Transfer Case Circuit, 2-Speed Manual
- 202: Warning Systems Circuit, W/ AN3/DL3 (1 of 2)
- 203: Warning Systems Circuit, W/ AN3/DL3 (2 of 2)
- 204: Warning Systems Circuit, W/O AN3/DL3 (1 of 2)
- 205: Warning Systems Circuit, W/O AN3/DL3 (2 of 2)
- 206: Moisture Sensor Circuit
- 207: Windshield Washer Solvent Heater Circuit
- 208: Wiper/Washer Circuit


GMC Sierra 2500 HD

- 1: Automatic A/C Circuit (1 of 3)
- 2: Automatic A/C Circuit (2 of 3)
- 3: Automatic A/C Circuit (3 of 3)
- 4: Compressor Circuit
- 5: Manual A/C Circuit (1 of 3)
- 6: Manual A/C Circuit (2 of 3)
- 7: Manual A/C Circuit (3 of 3)
- 8: Anti-Lock Brake Circuit, W/ JL4 (1 of 2)
- 9: Anti-Lock Brake Circuit, W/ JL4 (2 of 2)
- 10: Anti-Lock Brake Circuit, W/O JL4
- 11: Trailer ABS Circuit
- 12: Anti-theft Circuit
- 13: Body Control Modules Circuit (1 of 3)
- 14: Body Control Modules Circuit (2 of 3)
- 15: Body Control Modules Circuit (3 of 3)
- 16: Computer Data Lines Circuit (1 of 2)
- 17: Computer Data Lines Circuit (2 of 2)
- 18: Cooling Fan Circuit
- 19: 6.0L VIN K, Cruise Control Circuit
- 20: 6.6L VIN 6, Cruise Control Circuit
- 21: Heated Mirrors Circuit, W/ AN3/DL3
- 22: Heated Mirrors Circuit, W/O AN3/DL3
- 23: Rear Defogger Circuit
- 24: 6.0L VIN K, Engine Performance Circuit (1 of 4)
- 25: 6.0L VIN K, Engine Performance Circuit (2 of 4)
- 26: 6.0L VIN K, Engine Performance Circuit (3 of 4)
- 27: 6.0L VIN K, Engine Performance Circuit (4 of 4)
- 28: 6.6L VIN 6, Engine Performance Circuit (1 of 5)
- 29: 6.6L VIN 6, Engine Performance Circuit (2 of 5)
- 30: 6.6L VIN 6, Engine Performance Circuit (3 of 5)
- 31: 6.6L VIN 6, Engine Performance Circuit (4 of 5)
- 32: 6.6L VIN 6, Engine Performance Circuit (5 of 5)
- 33: Backup Lamps Circuit
- 34: Exterior Lamps Circuit (1 of 3)
- 35: Exterior Lamps Circuit (2 of 3)
- 36: Exterior Lamps Circuit (3 of 3)
- 37: Trailer Tow Circuit
- 38: Ground Distribution Circuit (1 of 6)
- 39: Ground Distribution Circuit (2 of 6)
- 40: Ground Distribution Circuit (3 of 6)
- 41: Ground Distribution Circuit (4 of 6)
- 42: Ground Distribution Circuit (5 of 6)
- 43: Ground Distribution Circuit (6 of 6)
- 44: Headlights Circuit
- 45: Horn Circuit
- 46: Instrument Cluster Circuit (1 of 2)
- 47: Instrument Cluster Circuit (2 of 2)
- 48: Courtesy Lamps Circuit, W/ AN3/DL3
- 49: Courtesy Lamps Circuit, W/O AN3/DL3
- 50: Instrument Illumination Circuit (1 of 2)
- 51: Instrument Illumination Circuit (2 of 2)
- 52: Adjustable Pedal Circuit
- 53: Driver"s Memory Seat Circuit (1 of 2)
- 54: Driver"s Memory Seat Circuit (2 of 2)
- 55: Navigation Circuit, W/ Y91 & W/ UQA (1 of 3)
- 56: Navigation Circuit, W/ Y91 & W/ UQA (2 of 3)
- 57: Navigation Circuit, W/ Y91 & W/ UQA (3 of 3)
- 58: Navigation Circuit, W/ Y91 & W/O UQA (1 of 3)
- 59: Navigation Circuit, W/ Y91 & W/O UQA (2 of 3)
- 60: Navigation Circuit, W/ Y91 & W/O UQA (3 of 3)
- 61: Navigation Circuit, W/O Y91 & W/ UQA (1 of 3)
- 62: Navigation Circuit, W/O Y91 & W/ UQA (2 of 3)
- 63: Navigation Circuit, W/O Y91 & W/ UQA (3 of 3)
- 64: Navigation Circuit, W/O Y91 & W/O UQA (1 of 3)
- 65: Navigation Circuit, W/O Y91 & W/O UQA (2 of 3)
- 66: Navigation Circuit, W/O Y91 & W/O UQA (3 of 3)
- 67: Parking Assistant Circuit
- 68: 6.0L VIN K, Power Distribution Circuit (1 of 6)
- 69: 6.0L VIN K, Power Distribution Circuit (2 of 6)
- 70: 6.0L VIN K, Power Distribution Circuit (3 of 6)
- 71: 6.0L VIN K, Power Distribution Circuit (4 of 6)
- 72: 6.0L VIN K, Power Distribution Circuit (5 of 6)
- 73: 6.0L VIN K, Power Distribution Circuit (6 of 6)
- 74: 6.6L VIN 6, Power Distribution Circuit (1 of 5)
- 75: 6.6L VIN 6, Power Distribution Circuit (2 of 5)
- 76: 6.6L VIN 6, Power Distribution Circuit (3 of 5)
- 77: 6.6L VIN 6, Power Distribution Circuit (4 of 5)
- 78: 6.6L VIN 6, Power Distribution Circuit (5 of 5)
- 79: Power Door Locks Circuit, Base
- 80: Power Door Locks Circuit, Premium
- 81: Electrochromic Mirror Circuit
- 82: Power Mirrors Circuit, Manual Foldiing Mirror
- 83: Power Mirrors Circuit, Power Foldiing Mirror (1 of 2)
- 84: Power Mirrors Circuit, Power Foldiing Mirror (2 of 2)
- 85: Adjustable Pedal Circuit
- 86: Driver Power Seat Circuit
- 87: Heated Seats Circuit (1 of 2)
- 88: Heated Seats Circuit (2 of 2)
- 89: Heated Steering Wheel Circuit
- 90: Passenger Power Seat Circuit, 6-Way Power Seat
- 91: Passenger Power Seat Circuit, 8-Way Power Seat
- 92: Power Top/Sunroof Circuit
- 93: Power Windows Circuit, W/ AN3/DL3
- 94: Power Windows Circuit, W/O AN3/DL3
- 95: Sliding Rear Window Circuit
- 96: Radio Circuit, W/ Y91 & W/ UQA (1 of 3)
- 97: Radio Circuit, W/ Y91 & W/ UQA (2 of 3)
- 98: Radio Circuit, W/ Y91 & W/ UQA (3 of 3)
- 99: Radio Circuit, W/ Y91 & W/O UQA (1 of 3)
- 100: Radio Circuit, W/ Y91 & W/O UQA (2 of 3)
- 101: Radio Circuit, W/ Y91 & W/O UQA (3 of 3)
- 102: Radio Circuit, W/O Y91 & W/ UQA (1 of 3)
- 103: Radio Circuit, W/O Y91 & W/ UQA (2 of 3)
- 104: Radio Circuit, W/O Y91 & W/ UQA (3 of 3)
- 105: Radio Circuit, W/O Y91 & W/O UQA (1 of 3)
- 106: Radio Circuit, W/O Y91 & W/O UQA (2 of 3)
- 107: Radio Circuit, W/O Y91 & W/O UQA (3 of 3)
- 108: Shift Interlock Circuit
- 109: 6.0L VIN K, Charging Circuit
- 110: 6.0L VIN K, Starting Circuit
- 111: 6.6L VIN 6, Charging Circuit
- 112: 6.6L VIN 6, Starting Circuit
- 113: Supplemental Restraints Circuit (1 of 2)
- 114: Supplemental Restraints Circuit (2 of 2)
- 115: Transfer Case Circuit, 2-Speed Manual
- 116: Transfer Case Circuit, Selectable
- 117: 6.0L VIN K, A/T Circuit (1 of 2)
- 118: 6.0L VIN K, A/T Circuit (2 of 2)
- 119: 6.6L VIN 6, A/T Circuit (1 of 2)
- 120: 6.6L VIN 6, A/T Circuit (2 of 2)
- 121: Warning Systems Circuit, W/ AN3/DL3 (1 of 2)
- 122: Warning Systems Circuit, W/ AN3/DL3 (2 of 2)
- 123: Warning Systems Circuit, W/O AN3/DL3 (1 of 2)
- 124: Warning Systems Circuit, W/O AN3/DL3 (2 of 2)
- 125: Moisture Sensor Circuit
- 126: Windshield Washer Solvent Heater Circuit
- 127: Wiper/Washer Circuit


GMC Sierra 3500 HD

- 1: Automatic A/C Circuit (1 of 3)
- 2: Automatic A/C Circuit (2 of 3)
- 3: Automatic A/C Circuit (3 of 3)
- 4: Compressor Circuit
- 5: Manual A/C Circuit (1 of 3)
- 6: Manual A/C Circuit (2 of 3)
- 7: Manual A/C Circuit (3 of 3)
- 8: Anti-Lock Brake Circuit, W/ JL4 (1 of 2)
- 9: Anti-Lock Brake Circuit, W/ JL4 (2 of 2)
- 10: Anti-Lock Brake Circuit, W/O JL4
- 11: Trailer ABS Circuit
- 12: Anti-theft Circuit
- 13: Body Control Modules Circuit (1 of 3)
- 14: Body Control Modules Circuit (2 of 3)
- 15: Body Control Modules Circuit (3 of 3)
- 16: Computer Data Lines Circuit (1 of 2)
- 17: Computer Data Lines Circuit (2 of 2)
- 18: Cooling Fan Circuit
- 19: 6.0L VIN K, Cruise Control Circuit
- 20: 6.6L VIN 6, Cruise Control Circuit
- 21: Heated Mirrors Circuit, W/ AN3/DL3
- 22: Heated Mirrors Circuit, W/O AN3/DL3
- 23: Rear Defogger Circuit
- 24: 6.0L VIN K, Engine Performance Circuit (1 of 4)
- 25: 6.0L VIN K, Engine Performance Circuit (2 of 4)
- 26: 6.0L VIN K, Engine Performance Circuit (3 of 4)
- 27: 6.0L VIN K, Engine Performance Circuit (4 of 4)
- 28: 6.6L VIN 6, Engine Performance Circuit (1 of 5)
- 29: 6.6L VIN 6, Engine Performance Circuit (2 of 5)
- 30: 6.6L VIN 6, Engine Performance Circuit (3 of 5)
- 31: 6.6L VIN 6, Engine Performance Circuit (4 of 5)
- 32: 6.6L VIN 6, Engine Performance Circuit (5 of 5)
- 33: Backup Lamps Circuit
- 34: Exterior Lamps Circuit (1 of 3)
- 35: Exterior Lamps Circuit (2 of 3)
- 36: Exterior Lamps Circuit (3 of 3)
- 37: Trailer Tow Circuit
- 38: Ground Distribution Circuit (1 of 6)
- 39: Ground Distribution Circuit (2 of 6)
- 40: Ground Distribution Circuit (3 of 6)
- 41: Ground Distribution Circuit (4 of 6)
- 42: Ground Distribution Circuit (5 of 6)
- 43: Ground Distribution Circuit (6 of 6)
- 44: Headlights Circuit
- 45: Horn Circuit
- 46: Instrument Cluster Circuit (1 of 2)
- 47: Instrument Cluster Circuit (2 of 2)
- 48: Courtesy Lamps Circuit, W/ AN3/DL3
- 49: Courtesy Lamps Circuit, W/O AN3/DL3
- 50: Instrument Illumination Circuit (1 of 2)
- 51: Instrument Illumination Circuit (2 of 2)
- 52: Adjustable Pedal Circuit
- 53: Driver"s Memory Seat Circuit (1 of 2)
- 54: Driver"s Memory Seat Circuit (2 of 2)
- 55: Navigation Circuit, W/ Y91 & W/ UQA (1 of 3)
- 56: Navigation Circuit, W/ Y91 & W/ UQA (2 of 3)
- 57: Navigation Circuit, W/ Y91 & W/ UQA (3 of 3)
- 58: Navigation Circuit, W/ Y91 & W/O UQA (1 of 3)
- 59: Navigation Circuit, W/ Y91 & W/O UQA (2 of 3)
- 60: Navigation Circuit, W/ Y91 & W/O UQA (3 of 3)
- 61: Navigation Circuit, W/O Y91 & W/ UQA (1 of 3)
- 62: Navigation Circuit, W/O Y91 & W/ UQA (2 of 3)
- 63: Navigation Circuit, W/O Y91 & W/ UQA (3 of 3)
- 64: Navigation Circuit, W/O Y91 & W/O UQA (1 of 3)
- 65: Navigation Circuit, W/O Y91 & W/O UQA (2 of 3)
- 66: Navigation Circuit, W/O Y91 & W/O UQA (3 of 3)
- 67: Parking Assistant Circuit
- 68: 6.0L VIN K, Power Distribution Circuit (1 of 6)
- 69: 6.0L VIN K, Power Distribution Circuit (2 of 6)
- 70: 6.0L VIN K, Power Distribution Circuit (3 of 6)
- 71: 6.0L VIN K, Power Distribution Circuit (4 of 6)
- 72: 6.0L VIN K, Power Distribution Circuit (5 of 6)
- 73: 6.0L VIN K, Power Distribution Circuit (6 of 6)
- 74: 6.6L VIN 6, Power Distribution Circuit (1 of 5)
- 75: 6.6L VIN 6, Power Distribution Circuit (2 of 5)
- 76: 6.6L VIN 6, Power Distribution Circuit (3 of 5)
- 77: 6.6L VIN 6, Power Distribution Circuit (4 of 5)
- 78: 6.6L VIN 6, Power Distribution Circuit (5 of 5)
- 79: Power Door Locks Circuit, Base
- 80: Power Door Locks Circuit, Premium
- 81: Electrochromic Mirror Circuit
- 82: Power Mirrors Circuit, Manual Foldiing Mirror
- 83: Power Mirrors Circuit, Power Foldiing Mirror (1 of 2)
- 84: Power Mirrors Circuit, Power Foldiing Mirror (2 of 2)
- 85: Adjustable Pedal Circuit
- 86: Driver Power Seat Circuit
- 87: Heated Seats Circuit (1 of 2)
- 88: Heated Seats Circuit (2 of 2)
- 89: Heated Steering Wheel Circuit
- 90: Passenger Power Seat Circuit, 6-Way Power Seat
- 91: Passenger Power Seat Circuit, 8-Way Power Seat
- 92: Power Top/Sunroof Circuit
- 93: Power Windows Circuit, W/ AN3/DL3
- 94: Power Windows Circuit, W/O AN3/DL3
- 95: Sliding Rear Window Circuit
- 96: Radio Circuit, W/ Y91 & W/ UQA (1 of 3)
- 97: Radio Circuit, W/ Y91 & W/ UQA (2 of 3)
- 98: Radio Circuit, W/ Y91 & W/ UQA (3 of 3)
- 99: Radio Circuit, W/ Y91 & W/O UQA (1 of 3)
- 100: Radio Circuit, W/ Y91 & W/O UQA (2 of 3)
- 101: Radio Circuit, W/ Y91 & W/O UQA (3 of 3)
- 102: Radio Circuit, W/O Y91 & W/ UQA (1 of 3)
- 103: Radio Circuit, W/O Y91 & W/ UQA (2 of 3)
- 104: Radio Circuit, W/O Y91 & W/ UQA (3 of 3)
- 105: Radio Circuit, W/O Y91 & W/O UQA (1 of 3)
- 106: Radio Circuit, W/O Y91 & W/O UQA (2 of 3)
- 107: Radio Circuit, W/O Y91 & W/O UQA (3 of 3)
- 108: Shift Interlock Circuit
- 109: 6.0L VIN K, Charging Circuit
- 110: 6.0L VIN K, Starting Circuit
- 111: 6.6L VIN 6, Charging Circuit
- 112: 6.6L VIN 6, Starting Circuit
- 113: Supplemental Restraints Circuit (1 of 2)
- 114: Supplemental Restraints Circuit (2 of 2)
- 115: Transfer Case Circuit, 2-Speed Manual
- 116: Transfer Case Circuit, Selectable
- 117: 6.0L VIN K, A/T Circuit (1 of 2)
- 118: 6.0L VIN K, A/T Circuit (2 of 2)
- 119: 6.6L VIN 6, A/T Circuit (1 of 2)
- 120: 6.6L VIN 6, A/T Circuit (2 of 2)
- 121: Warning Systems Circuit, W/ AN3/DL3 (1 of 2)
- 122: Warning Systems Circuit, W/ AN3/DL3 (2 of 2)
- 123: Warning Systems Circuit, W/O AN3/DL3 (1 of 2)
- 124: Warning Systems Circuit, W/O AN3/DL3 (2 of 2)
- 125: Moisture Sensor Circuit
- 126: Windshield Washer Solvent Heater Circuit
- 127: Wiper/Washer Circuit


ELECTRICAL COMPONENTS LOCATOR

- 1: Below Left Side Of Dash
- 2: Left Side Of Engine Compartment
- 3: Left Side Of Engine Compartment Legend
- 4: Steering Column
- 5: Under Front Seats
- 6: Under Left Side Of Vehicle (E85)
- 7: Front Wheel Speed Sensors
- 8: Rear Wheel Speed Sensors
- 9: Automatic Transmission (4L60-E)
- 10: Transmission (4L60-E)
- 11: Transfer Case
- 12: Transmission Control Module (Allison)
- 13: Front Headliner
- 14: Driver Door
- 15: Passenger Door
- 16: Left Rear Door (Crew Cab)
- 17: Right Rear Door (Crew Cab)
- 18: Lower Left Side Of Dash
- 19: Lower Left Side Of Dash
- 20: Left Rear Of Vehicle
- 21: Right Side Of Engine (4.8L, 5.3L, 6.0L & 6.2L)
- 22: Top Of Engine (4.8L, 5.3L, 6.0L & 6.2L)
- 23: Front Of Engine (4.8L, 5.3L, 6.0L & 6.2L)
- 24: Engine Compartment (4.8L, 5.3L, 6.0L & 6.2L)
- 25: Under Rear Of Vehicle
- 26: Under Rear Of Vehicle (Short Wheel Base)
- 27: Engine Cooling Fans (10 Series)
- 28: Left Rear Door (Extended Cab)
- 29: Right Rear Door (Extended Cab)
- 30: Right Rear Of Passenger Compartment
- 31: Roof Rail Air Bags (Extended Cab & Crew Cab)
- 32: HVAC Module (CJ2)
- 33: HVAC Module (C67)
- 34: Horns
- 35: Park Brake Assembly
- 36: Front Of Vehicle
- 37: Rear Of Vehicle
- 38: Driver Seat
- 39: Passenger Seat
- 40: Left Rear Of Passenger Compartment
- 41: Driver's Seat
- 42: Passenger Seat
- 43: Front Of Vehicle (10 Series)
- 44: Roof Rail Air Bags (Regular Cab)
- 45: Rear Of Vehicle
- 46: Transfer Case (NQG)
- 47: Front Axle
- 48: Transfer Case (NQH)
- 49: Engine Compartment
- 50: Right Side Of Dash
- 51: Front Of Vehicle
- 52: Lower Front Of Engine
- 53: Front Of Engine
- 54: Left Rear Of Engine Compartment
- 55: Left Front Of Passenger Compartment
- 56: Under Left Side Of Vehicle
- 57: Passenger Compartment Floor
- 58: Front Of Engine Compartment (6.6L)
- 59: Top Of Engine (6.6L)
- 60: Engine Compartment (6.6L)
- 61: Right Side Of Engine (6.6L)
- 62: Left Side Of Engine (6.6L)
- 63: Underhood Fuse Block
- 64: Front Of Vehicle (Except 6.6L)
- 65: Top Of Engine (4.3L)
- 66: Left Side Of Engine (4.3L)
- 67: Engine (4.8L, 5.3L, 6.0L & 6.2L)
- 68: Engine Compartment
- 69: Front Of Passenger Compartment
- 70: Front Of Passenger Compartment (Base)
- 71: Console
- 72: Passenger Compartment (Regular Cab)
- 73: Passenger Compartment (Extended Cab) (1 Of 2)
- 74: Passenger Compartment (Extended Cab) (2 Of 2)
- 75: Passenger Compartment (Crew Cab) (1 Of 2)
- 76: Passenger Compartment (Crew Cab) (2 Of 2)
- 77: Crew Cab Headliner (Extended Cab/Regular Cab Similar)
- 78: Chassis (Crew Cab Shown, Regular & Extended Cab Similar)
- 79: Right Rear Of Passenger Compartment
- 80: Rear Bumper
- 81: Engine Compartment
- 82: Left Side Of Engine (4.3L)
- 83: Top Of Engine (4.3L)
- 84: Right Side Of Engine (4.3L)
- 85: Top Of Engine (4.3L)
- 86: Front Of Engine (4.8L, 5.3L, 6.0L & 6.2L)
- 87: Lower Rear Of Engine Compartment (4.8L, 5.3L, 6.0L & 6.2L)
- 88: Transmission (Diesel)
- 89: Transmission (MYC/MYD)
- 90: Front Of Vehicle (10 Series)
- 91: Front Of Vehicle
- 92: Rear Of Engine Compartment (4.3L)
- 93: Rear Of Engine Compartment (Diesel)
- 94: Behind Dash
- 95: Dash
- 96: Under Top Of Dash
- 97: Steering Wheel
- 98: Center Console
- 99: Left Front Of Roof
- 100: Overhead Console
- 101: Overhead Console & Headliner (U42/5Y0)
- 102: Windshield
- 103: Left/Right "B" Pillars (Extended & Crew Cab)
- 104: Left Side Frame & Underbody
- 105: Left Side Frame & Underbody (Diesel)
- 106: Right Side Frame & Underbody (Diesel)
- 107: Left Rear Frame & Underbody
- 108: Left Rear Frame & Underbody (20/30 Series)
- 109: Left Rear Frame & Underbody (31 Series)
- 110: Left Side Of Engine Compartment (4.8L, 5.3L, 6.0L & 6.2L)
- 111: Front Chassis Frame Rails (31 Series & 6.0L)
- 112: Top Left Side Of Engine (Diesel)
- 113: Dash
- 114: Steering Column
- 115: Chassis (Regular Cab & Extended Cab)
- 116: Driver's Door
- 117: Front Passenger's Door
- 118: Underside Of Cargo Box