4.3l (vin z), transmission circuit, 4l80-e for Chevrolet Chevy Van G30 (1985-1994)

1-2 SHIFT SOL 2-3 SHIFT SOL BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BRN WIRE COOLANT TEMP SENSOR (TOP FRONT OF ENGINE) DK BLU WIRE DK BLU/WHT WIRE ELECTRONIC 4-SPEED AUTOMATIC OVERDRIVE TRANSMISSION FUSE ECM IGN FUSE TRANS FUSE ECMB GRY WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN RUN I/P FUSE BLOCK FUSE BRAKE HOT IN RUN, BULB TEST OR START LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE OUTPUT SPEED SENSOR (LEFT REAR OF TRANSMISSION) PNK WIRE PNK/BLK WIRE PNK/WHT WIRE POWERTRAIN CONTROL MODULE (PCM) (UNDER DRIVER'S SEAT) PPL PPL/WHT WIRE RANGE MODE SELECTOR PRESSURE CONTROL SOL RED WIRE RED/BLK WIRE TAN WIRE TAN/WHT WIRE TCC SOL TCC/BRAKE SWITCH (ON BRAKE PEDAL SUPPORT ARM) THROTTLE POSITION SENSOR (TOP OF ENGINE, ON THROTTLE BODY) TRANS INPUT SPEED SENSOR (LEFT FRONT OF TRANSMISSION) TRANS OSS HI 5 VOLT SENSOR REF 12 VOLT IGNITION IN TRANS- MISSION TEMP VEHICLE SPEED SENSOR BUFFER (PARK BRAKE SUPPORT BRACKET) WHT/BLK WIRE YEL WIRE YEL/BLK WIRE