Supplemental brake assist circuit for Chevrolet Silverado Classic 1500 HD (2007-2007)

BLK WIRE BLK/WHT WIRE DK BLU WIRE DK GRN/WHT WIRE ENG ON SIG ENGINE ON SIGNAL EXCEPT 6.0L 6.0L GENERATOR GENERATOR BATTERY CONTROL MODULE GRD HOT IN RUN OR START I/P RELAY BLOCK (NEAR LEFT KICK PANEL) IGN 1 VOLT INSTRUMENT CLUSTER SYSTEM PNK WIRE PRESSURE DIFFERENTIAL SWITCH SBA FUSE SUPPLEMENTAL BRAKE ASSIST PUMP MOTOR (ON POWER BRAKE BOOSTER) SUPPLEMENTAL BRAKE SIG UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT) VACUUM PUMP MOTOR VEHICLE SPD SIG