BMW fault code 93C6
Crash safety module
In the crash safety module, code 93C6 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.
SIM: Control-module fault (error in alarm path)
Module versions: Safety and Information Module (SIM), Safety and Information Module (SIM85)
In: 7 Series (E65) 2001–2008, 7 Series (E66) 2002–2008, 7 Series (E67) 2002–2008, Z4 (E85) 2002–2008, Z4 (E86) 2006–2008
ACSM: Backrest lock (E93)/seat memory (E70/E71) for driver's seat
Module version: Crash safety module (ACSM2)
In: 1 Series (E82) 2007–2013, 1 Series (E88) 2008–2013, 3 Series (E92) 2006–2013, 3 Series (E93) 2007–2013, X1 (E84) 2009–2015, X5 (E70) 2006–2013, X6 (E71) 2008–2014, X6 (E72) 2009–2011
ACSM: Backrest lock for driver's seat
Module version: Crash safety module (ACSM85)
MRS: Backrest lock for driver's seat
Module version: Multiple restraint system (MRS5)
In: 1 Series (E87) 2004–2011, 1 Series (E81) 2007–2011, 1 Series (E82) 2007–2013, 3 Series (E90) 2005–2012, 3 Series (E91) 2005–2012, 3 Series (E92) 2006–2013, X1 (E84) 2009–2015
Reading and clearing it
Fault code 93C6 is a BMW code, stored in the car's crash safety module, 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 crash safety module is on: 5 Series (E60), 5 Series (E61), 6 Series (E63), 6 Series (E64), 7 Series (E65), 7 Series (E66), 7 Series (E67), X5 (E70), X6 (E71), X6 (E72), 1 Series (E81), 1 Series (E82), X1 (E84), Z4 (E85), Z4 (E86), 1 Series (E87), 1 Series (E88), Z4 (E89), 3 Series (E90), 3 Series (E91), 3 Series (E92), 3 Series (E93)
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