Check Control Message: Restraint Systems Failed (SI B65 22 17)

Publication date: 2017-11-01
Reference number: SI B65 22 17

CHECK CONTROL MESSAGE: RESTRAINT SYSTEMS FAILED

TECHNICAL SERVICE BULLETIN

Reference Number(s): SI B65 22 17, Date of Issue: November 01, 2017

BMW:	F01 (7 Series Sedan); F02 (7 Series LWB Sedan); F06 (6 Series Gran Coupe); F07 (5 Series Gran Turismo); F10 (5 Series Sedan); F12 (6 Series Convertible); F13 (6 Series Coupe); F22 (2 Series Coupe); F23 (2 Series Convertible); F25 (X3); F26 (X4); F31 (3 Series Sport Wagon); F32 (4 Series Coupe); F33 (4 Series Convertible); F34 (3 Series Gran Turismo); F36 (4 Series Gran Coupe)
GROUP:	Audio, Navigation, Information, Safety Systems

Check Control message (CCM) "Restraint systems failed" appears sporadically.

The following fault memory entries may also be stored in the Air Bag Control Unit (ACSM):

930A67 - Airbag sensor cluster (high g x-y-direction): Communication fault
930A74 - Airbag sensor cluster (low g yaw rate): Communication fault
930A76 - Airbag sensor cluster (low g yaw rate): Short circuit after negative terminal
930A6D - airbag sensor cluster (high g x-direction): Wrong sensor type
930A70 - airbag sensor cluster (high g y-direction): Wrong sensor type

Electromagnetic interference from devices plugged into 12V sockets.

Remove unapproved devices from 12V sockets.

For conditions that are similar to the situation described:

Check for 12V-powered devices plugged into the power sockets. Ask customer whether any 12V-powered devices were plugged in when the message appeared.
Did (does) the message go away when the device was/is unplugged?

YES- inform customer not to use this device. No further repair is needed.

NO - continue troubleshooting.
Perform diagnosis with the latest version of ISTA and work through any displayed test modules.

Parts replacement will not provide a solution to this situation.

This service information bulletin provides technical and diagnostic-related information.