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Home >> Buick >> 1990 >> Reatta 2D Convertible, 4T60/ME9 >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Codes & Charts >> Chart D1 Pump/Motor Does Not Operate >> Notes
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Chart D1 Pump/Motor Does Not Operate: Notes

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 switched relay contacts, from a fusible link, located at the battery junction block and circuit 2.