GMC Pickup C3500 (1985-2000) dk blu or tan/blk Wiring diagrams

3-2 SHIFT SOLENOID 4.3L ALL OR W/ NRQ ALL OTHER BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BRN WIRE DATA LINK CONNECTOR (UNDER LEFT SIDE OF I/P) DK BLU OR TAN/BLK WIRE DK BLU WIRE DK GRN/WHT WIRE ELECTRONIC 4-SPEED AUTOMATIC OVERDRIVE TRANSMISSION FUEL PUMP AND SENDER FUEL PUMP IN-LINE FUSE FUEL PUMP OIL PRESSURE SWITCH (LEFT REAR OF ENGINE, NEAR EXHAUST MANIFOLD) FUEL PUMP RELAY (RIGHT REAR OF ENGINE COMPARTMENT, NEAR BATTERY JUNCTION BLOCK) FUSE FUSE LINK (20 GA- GRY WIRE HEATED OXYGEN SENSOR (IN EXHAUST Y-PIPE) HOT AT ALL TIMES HOT IN RUN FUSE BLOCK HOT IN RUN OR START INSTRUMENT CLUSTER LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE OIL PRESS IN ONLY ORG/ WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE PPL PPL 4 5 PPL/WHT WIRE PRESSURE CONTROL SOLENOID RANGE MODE SELECTOR RED WIRE RED/BLK WIRE SHIFT SOLE- NOID 1-2 SHIFT SOLENOID 2-3 SOLENOID TACH IN TAN WIRE TAN/BLK DK BLU OR WIRE TAN/BLK WIRE TORQUE CONVERTER CLUTCH TRANS FUSE TRANS- MISSION TEMP SENSOR VEHICLE SPEED SENSOR (LEFT REAR SIDE OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER (UNDER RIGHT END OF I/P) VSS IN WHT WIRE WHT/BLK WIRE YEL/BLK WIRE

3-2 SHIFT SOLENOID 4.3L ALL OR W/ NRQ ALL OTHER BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BRN WIRE DATA LINK CONNECTOR (UNDER LEFT SIDE OF I/P) DK BLU OR TAN/BLK WIRE DK BLU WIRE DK GRN/WHT WIRE ELECTRONIC 4-SPEED AUTOMATIC OVERDRIVE TRANSMISSION FUEL PUMP AND SENDER FUEL PUMP IN-LINE FUSE FUEL PUMP OIL PRESSURE SWITCH (LEFT REAR OF ENGINE, NEAR EXHAUST MANIFOLD) FUEL PUMP RELAY (RIGHT REAR OF ENGINE COMPARTMENT, NEAR BATTERY JUNCTION BLOCK) FUSE FUSE LINK (20 GA- GRY WIRE HEATED OXYGEN SENSOR (IN EXHAUST Y-PIPE) HOT AT ALL TIMES HOT IN RUN FUSE BLOCK HOT IN RUN OR START INSTRUMENT CLUSTER LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE OIL PRESS IN ONLY ORG/ WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE PPL PPL 4 5 PPL/WHT WIRE PRESSURE CONTROL SOLENOID RANGE MODE SELECTOR RED WIRE RED/BLK WIRE SHIFT SOLE- NOID 1-2 SHIFT SOLENOID 2-3 SOLENOID TACH IN TAN WIRE TAN/BLK DK BLU OR WIRE TAN/BLK WIRE TORQUE CONVERTER CLUTCH TRANS FUSE TRANS- MISSION TEMP SENSOR VEHICLE SPEED SENSOR (LEFT REAR SIDE OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER (UNDER RIGHT END OF I/P) VSS IN WHT WIRE WHT/BLK WIRE YEL/BLK WIRE