The Delphi DBC-7 ABS antilock brake system was first used in 1999 on 1999 Buick Regal and Century, and Chevrolet Tracker. The system replaced the earlier Delphi ABS-VI (which has been around since 1991 on many General Motors passenger cars). For model year 2000, the new DBC-7 system was added to the Chevrolet Impala, Monte Carlo, Malibu, Cavalier and Venture, Pontiac Sunfire and Montana, and Oldsmobile Cutlass and Silhouette. Like other late model ABS systems, DBC-7 is a compact, lightweight, low-cost ABS system that combines the controller and valve body in one assembly. It is a nonintegral, four-wheel system for either three or four channel operation, and offers traction control capability. DBC-7 is totally different than the ABS-IV system GM has used on so many of its passenger cars. Gone are the gear pack and motor driven pistons. DBC-7 uses solenoid valves like other ABS systems manufactured by Bosch, Kelsey-Hayes and Teves, and the controller, valves, solenoids an...
