GMC Vandura P3500 (1985-1997) ppl ppl 420 1807 brake sw input serial data Wiring diagram

1225 1224 PNK WIRE 900 900 SERVICE CIRCUIT POWER SERVICE CIRCUIT POWER A/C REQUEST SIGNAL ANTI-LOCK BRAKES SYSTEM PPL B(+) BLK RED/ WIRE BLK WIRE BLK/WHT BLK WIRE BLK/WHT WIRE BREAKOUT FOR MAP SENSOR, TOWARD BULKHEAD) BRN WIRE BRN/WHT WIRE CRUISE CTRL ENGAGED CRUISE CTRL SIG-ENGAGED CYLINDER NO.1 CYLINDER NO.4 CYLINDER NO.5 CYLINDER NO.3 CYLINDER NO.6 CYLINDER NO.7 CYLINDER NO.2 CYLINDER NO.8 DISTRIBUTOR DK BLU WIRE DK BLU/ WHT WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ECM BAT FUSE ELEC SPK TIMING CTRL SIGNAL EST CTRL EVAP CAN PURGE VAC IN FORCE MTR RTN GROUND GROUND SENS GROUND FORCE MTR FEED SENS RTN SENS RTN ELEC SPK TIMING CTRL SIG FROM BREAKOUT FOR ABS HARN) FUEL PMP RLY CTRL 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 FUEL PUMP PRIME CONNECTOR FUEL PUMP RELAY (AT RELAY CENTER RIGHT SIDE OF MAIN SUPPORT AT DRIVER'S ISLAND) GROUND GRY WIRE HIGH VOLTAGE COIL WIRE HOT AT ALL TIMES HOT IN RUN I-3 FUSE I/P FUSE BLOCK (MOUNTED ON THE I/P) IGN FEED IGN FEED PRESS SW SIG PRESS SW SIG IGNITION COIL (ON BRACKET AT REAR OF INTAKE PLENUM) IGNITION COIL DRIVER (ON BRACKET AT REAR OF INTAKE PLENUM) INPUT SPEED SENSOR (HD TRANSMISSION ONLY) LT BLU/BLK WIRE LT BLU/WHT WIRE OR 950 470 ORG/ WIRE PNK IGN FEED WIRE PNK PNK 1 2 3 4 WIRE PNK WIRE PPL PPL PPL 420 1807 BRAKE SW INPUT SERIAL DATA PPL TCC/STOPLAMP INPUT PRESS SW SIG PROVISION FOR TACHOMETER RED WIRE RED/BLK WIRE SPARK PLUGS SPEED SENSOR INPUT VEHICLE CONTROL MODULE (VCM) (MOUNTED TO TOP OF RADIATOR SUPPORT) VSS SIGNAL VSS OUTPUT CHECK ENGINE LP CTRL 389 419 WHT WIRE WHT/BLK WIRE