Engine Controls - DME Knock Sensor Faults Stored
SI B12 10 11Engine Electrical Systems
May 2011
Technical Service
SUBJECT
N54/N54T - DME Knock Sensor Signal Faults Are Stored
MODEL
All with N54 and N54T engine produced up to 2/28/2011
SITUATION
The Service Engine Soon (MIL) lamp may be illuminated with the following faults stored in the DME.
E60, E61, E71, E82, E88, E89, E90, E91, E92, E93/N54, N54T (DME: MSD80, MSD81):
^ 2E68 - Knock sensor signal 1 and/or
^ 2E69 - Knock sensor signal 2
F01, F02/N54 (DME MSD87):
^ 168001 - Knock sensor signal 1, signal: engine noise above limit value and/or
^ 168101 - Knock sensor signal 2, signal: engine noise above limit value
High outside ambient temperatures can influence the frequency of the fault(s) being stored.
CAUSE
DME software error
CORRECTION
Program the vehicle using ISTA/P 2.41.1 or later.
Vehicle integration (new):
^ E60/E61 N54 - E060-11-03-501 or later
^ E71 N54 - E070-11-03-501 or later
^ E82, E88, E89, E90, E91, E92, E93/N54, N54T - E89X-11-03-501 or later
^ F01, F02/N54 - F001-11-03-502 or later
Note that ISTA/P will automatically reprogram and code all programmable control modules that do not have the latest software.
For information on programming and coding with ISTA/P, refer to CenterNet / Aftersales Portal / Service / Workshop Technology / Vehicle Programming.
WARRANTY INFORMATION