Chart D1 Pump/Motor Does Not Operate: Notes
WARNING: This page is about a different car, the 1988 Buick Riviera and 1988 Buick Reatta. However, it is still accessible from the selected car via links, so may be relevant.
Pump/motor assembly maintains hydraulic pressure in accumulator. Pump/motor assembly is controlled by pump/motor relay and pressure switch. Pump/motor is powered through relay, by a 30-amp fuse, located on relay bracket.