BMW fault code 93BC

Crash safety module

In the crash safety module, code 93BC 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.

ACSM: Seatbelt-catch contact, rear left

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: Belt-buckle contact, driver's side, rear

Module version: Crash safety module (ACSM85)

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

MRS: Seatbelt-catch contact, rear left

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

No message (0x11), receiver SIM, transmitter SBSR

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

Timeout ID 20H (SSFA)

Module version: Safety and Information Module (SIM)

In: 7 Series (E65) 2001–2008, 7 Series (E66) 2002–2008, 7 Series (E67) 2002–2008

SIM: No message (20) from satellite, B-pillar, left

Module version: Safety and Information Module (SIM85)

In: Z4 (E85) 2002–2008, Z4 (E86) 2006–2008

Reading and clearing it

Fault code 93BC 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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