GMC Rally G2500 (1985-1995) All-wheel abs circuit, without drl

BLK WIRE BLU WIRE BRAKE FUSE BRAKE IND BRAKE PRESSURE WARNING SWITCH BRAKE WARN IND BPMV GND COLUMN) DATA LINK CONNECTOR (BELOW STEERING DIODE (ABOVE STEERING COLUMN) DK GRN WIRE FOUR-WHEEL ANTI- LOCK BRAKE MODULE (UNDER RIGHT SIDE OF VEHICLE, AT FRAME RAIL) FUSE BLOCK FUSIBLE LINK (16 GA-RUST) GAUGES FUSE GRN WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN, BULB TEST OR START I/P IGN FEED ABS IND BRAKE SW INSTRUMENT CLUSTER LEFT FRONT WHEEL SENSOR LF SENSOR LO RF SENSOR LO LT BLU WIRE NCA WIRE PARK BRAKE SWITCH PNK WIRE PNK/WHT WIRE PPL PUMP MOTOR PWR PUMP MOTOR GND RAIL, NEAR RIGHT PNK/ FRONT WHEEL) WIRE RED WIRE RF SENSOR HI LF SENSOR HI RIGHT FRONT WHEEL SENSOR TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC/BRAKE SWITCH (ON BRAKE PEDAL SUPPORT BRACKET) PPL VEHICLE SPEED IN DIAG REQUEST VEHICLE SPEED OUTPUT VEHICLE SPEED SENSOR BUFFER (ON PARKING BRAKE SUPPORT BRACKET) WHT WIRE YEL WIRE