BMW fault code 63B3

Longitudinal dynamics management

insignificant faultDelete fault code (brake torque reduction)

Module version: Longitudinal dynamics management (LDM_70)

In: X5 (E70) 2006–2013, X6 (E71) 2008–2014

Reading and clearing it

Fault code 63B3 is a BMW code, stored in the car's longitudinal dynamics management, 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 longitudinal dynamics management is on: X5 (E70), X6 (E71), X6 (E72)

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