GMC Sierra 2500 HD (2002-2012) underhood fuse holder Wiring diagrams

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 HALL A SIG HALL B SIG SENS GND POS 2 SIG 5 VOLT REF B+ VOLT B+ VOLT SERIAL DATA BASE BASE CASE GND GND B+ VOLT BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BRN WIRE CASE GROUND COMPUTER DATA LINES SYSTEM CRUISE FUSE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FUSE GRY WIRE HALL A SIG HALL B SIG SENS GND HALL C SIG HALL C SIG RLY VOLT SENS GND POS 1 SIG 5 VOLT REF HOT AT ALL TIMES HOT IN HOT IN RUN LEFT I/P FUSE BLOCK IGN 3 FUSE I/P RELAY BLOCK (LOWER LEFT SIDE OF DASH) INSTRUMENT CLUSTER SYSTEM LOW REF LT BLU WIRE LT GRN WIRE MEGA FUSE MODE IND CTRL LAT ACCEL SIG ORG/ WIRE PHASE A CTRL PHASE B CTRL PHASE C CTRL PNK PNK WIRE PNK WIRE POS A SIG POS B SIG POWER DISTRIBUTION SYSTEM PPL PULSE SIG REAR WHEEL POSITION SENSOR (LEFT REAR OF VEHICLE) REAR WHEEL STEERING CONTROL MODULE (NEAR SPARE TIRE BRACKET) REAR WHEEL STEERING MODE SELECT SWITCH RED WIRE RLY GND RUN WIRE SENS SIG STEERING GEAR MOTOR ASSEMBLY (NEAR SPARE TIRE BRACKET) STEERING WHEEL SPEED/ POSITION SENSOR (ON STEERING COLUMN) TAN WIRE UNDERHOOD FUSE BLOCK UNDERHOOD FUSE HOLDER VSS IGN 3 VOLT YAW SENS SIG MODE SW SIG WHT WIRE YEL WIRE

1271 3202 5991 LOW REF LOW REF PWTN RLY CTRL 2500 1272 2760 COMPUTER DATA LINES SYSTEM PPL 5 VOLT REF 3 5985 439 440 COMPUTER DATA LINES SYSTEM PNK WIRE AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM STARTING/CHARGING SYSTEM ANTI-LOCK BRAKES SYSTEM VEHICLE SPD SIG APP SENS 1 SIG INLET PRESS SENS SIG A/C SENS SIG LOW REF FP RLY CTRL APP SENS 2 SIG MAF SENS SIG AXLE SW SIG BLK WIRE BLK/WHT WIRE BRAKE SW SIG PARK/NEUTRAL SIG EXTERIOR LIGHTS SYSTEM TRANSMISSIONS SYSTEM BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM HIGH SPD DATA BUS - DK BLU WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT, NEAR FAN SHROUD) EVAP VENT SOL CTRL FUEL PMP RELAY FUEL PUMP FUSE 20 GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HOT AT ALL TIMES IAT SENS SIG LT BLU WIRE LT BLU/WHT WIRE MIL CTRL AIR CONDITIONING SYSTEM COMPR CLTCH RLY CTRL OF ENGINE COMPT) ORG/BLK WIRE PNK WIRE POWER SUPPLAY) (ON POSITIVE BATTERY TERMINAL) PPL RED/BLK WIRE RED/WHT WIRE STARTING/CHARGING SYSTEM CHARGE IND SIG TAN WIRE TAN/BLK WIRE TAN/WHT WIRE THROTTLE INLET ABSOLUTE PRESSURE SENSOR (ON THROTTLE BODY) TRANSMISSIONS SYSTEM TRANSMISSIONS SYSTEM UNDERHOOD FUSE BLOCK (LEFT SIDE UNDERHOOD FUSE HOLDER WAKEUP SERIAL DATA IGNITION 1 VOLT B+ VOLT WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/WHT WIRE