Restraints - Air Bag Lamp On/Fault Code 93DB Set

SI B 72 13 06
Safety Restraint Systems

October 2006
Technical Service

This Service Information bulletin supersedes S.M. B72 204 05 dated March 2005.

SUBJECT
Airbag Warning Light is on, FC 93DB Stored

MODEL
E85 (Z4)

SITUATION
The airbag indicator lamp is illuminated and FC 93DB (Step up converter defect) is stored in the SIM (Safety Information Module)

CAUSE
SIM - Safety Information Module

PROCEDURE
Check how frequently the fault occurs.

1. If the fault frequency is "1", clear the fault memory and allow the vehicle to enter sleep mode (Switch off ignition and wait 16 minutes). Read the fault code memory again. If the fault does not occur again, a parts replacement is not necessary - it is an intermittent fault. The system is OK.

2. If the frequency is greater than 1 or the fault reoccurs after the fault code memory has been cleared, the SIM must be replaced.





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