BMW fault code 5D8D
Dynamic stability control
DSC: Hydraulic unit: pump (5d8d return fuel pump Error in feedback from voltage monitoring RFP OFF but expected ON fuse or pump motor relay defective?)
Module versions: Dynamic stability control DSC8 (DXC8), Dynamic stability control Plus DSC8 (DXC_83)
Reading and clearing it
Fault code 5D8D is a BMW code, stored in the car's dynamic stability control, not a generic OBD2 code (P0xxx): a generic OBD2 reader only reaches the engine's emissions faults, so it won't show it. AutoLingo for BMW reads it with BMW's own diagnostic protocols, in plain English, with the details the module stored about it, and clears it after a repair. If a fault comes right back after it's cleared, the problem is still there.
The dynamic stability control is on: 3 Series (E36), Z3 (E36/7), 3 Series (E46), X5 (E53), X3 (E83), Z4 (E85), Z4 (E86)
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