BMW fault code 93DE

Crash safety module

In the crash safety module, code 93DE 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.

MRS: Airbag sensor, B-pillar, left (X-direction): message implausible

Module versions: Multiple restraint system (MRS5), Multiple restraint system (MRS7)

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, Z4 (E89) 2009–2016

SIM: Firing attempt taken place

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: Airbag sensor, B-pillar, left (X-direction): sensor data implausible

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: Airbag sensor, B-pillar, driver's side (X-direction): sensor data implausible

Module version: Crash safety module (ACSM85)

In: Z4 (E85) 2006–2008, Z4 (E86) 2006–2008

SGM-SIM: Deactivation: satellite, driver's seat

Module version: Safety and information module (SIM) (SGM_60_2)

In: 5 Series (E60) 2003–2010, 5 Series (E61) 2004–2010, 6 Series (E63) 2003–2010, 6 Series (E64) 2004–2010, 7 Series (E65) 2001–2008, 7 Series (E67) 2002–2008, 7 Series (E66) 2002–2008

Reading and clearing it

Fault code 93DE 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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