GMC Rally G3500 (1985-1996) gvw over 8500 lbs. gvw under 8500 lbs wiring diagram

19 20 PNK WIRE 5-VOLT REFERENCE 999 999 SERVICE CIRCUIT POWER SERVICE CIRCUIT POWER A/C SIGNAL A/T INPUT SPEED SENSOR BATTERY BATTERY PRESSURE SW SIGNAL PRESSURE SW SIGNAL BLK WIRE BLK/WHT WIRE BLU WIRE BRAKE FUSE 18 BRN WIRE BRN/WHT WIRE CRUISE CONTROL MODULE (FRONT OF ENGINE COMPARTMENT NEAR LEFT FENDER) CRUISE CTRL SIG-ENG CYL. NO.1 CYL. NO.8 CYL. NO.2 CYL. NO.4 CYL. NO.5 CYL. NO.3 CYL. NO.6 CYL. NO.7 DATA LINK CONNECTOR (UNDER LEFT SIDE OF I/P) DISTRIBUTOR DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE CONTROL MODULE (EBCM) (LEFT FRAME RAIL NEAR CENTER OF VEHICLE) FORCE MOTOR FEED RETURN SIGNAL ELEC SPARK TIMING FUEL PUMP RLY FEED 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 GRY WIRE GVW OVER 8500 LBS. GVW UNDER 8500 LBS HIGH VOLTAGE COIL WIRE HOT IN RUN I/P FUSE BLOCK IGNITION IGNITION COIL (TOP RIGHT SIDE OF ENGINE) IGNITION COIL DRIVER (TOP RIGHT SIDE OF ENGINE) LT BLU/BLK WIRE LT BLU/WHT WIRE ORG/ WIRE PNK IGNITION WIRE PNK PNK 1 2 3 4 5 6 7 8 9 10 11 WIRE PNK WIRE PPL PPL 420 PPL PPL PPL PPL 420 1807 BRAKE SWITCH INPUT SERIAL DATA PRESSURE SW SIGNAL 5 VOLTS REFERENCE RADIO RED WIRE RED/BLK WIRE SENSOR GROUND SERIAL DATA SIGNAL FORCE MOTOR RETURN GROUND GROUND SENSOR GROUND SOLID STATE SPARK PLUGS SPEED SENSOR INPUT VCM SIGNAL STOPLAMP SWITCH INPUT TAN/WHT WIRE TCC SIGNAL TRANSMISSION ONLY) (LEFT SIDE OF TRANSMISSION) VEHICLE CONTROL MODULE (ENGINE COMPARTMENT, LEFT FENDER) VSS SIGNAL VSS SIGNAL OUTPUT VSS SIGNAL OUTPUT MAL FUNC LP OUTPUT 389 419 WHT WIRE WHT/BLK WIRE