BMW fault code D397
Parking brake
In the parking brake, code D397 means different things depending on the version of the module in the car. Find your car below; the app shows the right one for yours.
No message (terminal 30G), receiver EMF, transmitter CAS
Module version: Parking brake (EMF_70)
In: X5 (E70) 2006–2013, X6 (E71) 2008–2014, X6 (E72) 2009–2011
Message (torque 1, A8) checksum incorrect
Module version: Parking brake (EMF_89)
In: Z4 (E89) 2009–2016
Reading and clearing it
Fault code D397 is a BMW code, stored in the car's parking brake, 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 parking brake is on: 7 Series (E65), 7 Series (E66), 7 Series (E67), X5 (E70), X6 (E71), X6 (E72), X1 (E84), Z4 (E89), 3 Series (E90), 3 Series (E91), 3 Series (E92), 3 Series (E93)
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