GMC Forward Control P3500 (1985-1999) 4.3l (vin z), transmission circuit, 4l80-e

2-3 SHIFT SOL BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BRN WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN/BLK (OR DK GRN/YEL) WIRE ECM BAT FUSE ECM-CRNK FUSE ELECTRONIC 4-SPEED AUTOMATIC OVERDRIVE TRANSMISSION ENGINE COOLANT TEMP SENS (TOP RIGHT SIDE OF ENG) FUSE BLOCK TRANS FUSE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN RUN, BULB TEST OR START LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE ORG/ WIRE ORG/BLK (OR ORG) WIRE PNK WIRE PNK/BLK (OR BRN) WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (LEFT SIDE OF SHIPPING PANEL) PPL PRESSURE CONTROL SOLENOID RANGE MODE SELECTOR RED WIRE RED/BLK WIRE TCC SOL 1-2 SHIFT SOL TCC/BRAKE SWITCH (ON BRAKE PEDAL SUPPORT ARM) THROTTLE POSITION SENSOR (TOP RIGHT SIDE OF ENG) TRANS- MISSION INPUT SPEED SENSOR (LEFT FRNT OF TRANS) TRANS- MISSION TEMP VEHICLE SPEED SENSOR (REAR OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER (BEHIND RIGHT SIDE OF I/P) WHT/BLK WIRE YEL WIRE YEL/BLK WIRE