GMC Suburban C2500 (1985-1999) dlc serial data Wiring diagram

4.3L ONLY 452 455 PPL 7.4L ONLY A/C ON SIGNAL IN BRAKE SW TO PCM AIR CONDITIONING SYSTEM BLK WIRE BLK/RED WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE COOLANT TEMP. SENSOR CRUISE CONTROL SYSTEM CRUISE IND REG GRD DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DK GRN/YEL WIRE DLC SERIAL DATA DLC THROTTLE POSITION SENSOR IN LO SIDE INJ A ECM IGN FUSE EGR VALVE SOLENOID (4.3L ONLY) (LEFT REAR TOP OF ENGINE) EGR VALVE SOLENOID UPSHIFT IND CTRL ELEC FUEL PUMP IN MAP SENSOR IN ENGINE CONTROL MODULE (UNDER RIGHT SIDE OF I/P) EVAP CANISTER PURGE CTRL EVAPORATIVE CANISTER PURGE SOLENOID (ON ENGINE) FUEL PUMP RELAY CTRL FUSE BLOCK GRY WIRE HOT IN RUN OR START HOT IN RUN, BULB TEST OR START IDLE AIR CONTROL UNIT (RIGHT REAR OF TBI UNIT) IGNITION BYPASS IGNITION CONTROL (IC) VSS BUFFER SIGNAL VSS BUFFER SIGNAL INJ FUSE KNOCK SENSOR IN LINEAR EGR POSITION IN LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MIL INDICATOR CTRL ORG/ WIRE ORG/BLK WIRE OXYGEN SENSOR LO PNK/BLK WIRE PPL PPL 1 2 3 4 PPL 18 19 PPL/WHT WIRE RED WIRE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE THROTTLE ACTUATOR CTRL THROTTLE BODY FUEL INJECTOR #1 (TOP OF THROTTLE BODY UNIT) THROTTLE BODY FUEL INJECTOR #2 (TOP OF THROTTLE BODY UNIT) WHT WIRE WHT/BLK WIRE YEL WIRE