Computer data lines, motor home chassis for GMC Forward Control P3500 (1985-1999)

BLK WIRE BLK/WHT WIRE DATA CLSS 2 DATA LINK CONNECTOR (BELOW DASH, NEAR STEERING COLUMN) DIAG SIG DIESEL GASOLINE ELECTRONIC BRAKE CONTROL MODULE (EBCM) (BELOW RADIATOR, ON LOWER CROSSMEMBER) ENG BAT FUSE 10 HOT AT ALL TIMES I/P FUSE BLOCK ORG/ WIRE PPL PPL SERIAL DATA SERIAL DATA TAN/WHT WIRE VEHICLE CONTROL MODULE (VCM) (TOP OF RADIATOR SUPPORT)