Engine Controls - MIL ON In Failsafe/DTC 4CAF

SI B 13 06 10
Fuel Systems

June 2010
Technical Service

SUBJECT
M57Y - MIL Is ON with DDE Internal Fault 4CAF Stored

MODEL
E90 with the M57Y engine produced up to 5/31/2010
E70 with the M57Y engine produced up to 6/7/2010

SITUATION
The "MIL" or Service Engine Soon lamp comes on intermittently with the engine in failsafe operation. The engine will only operate up to 1,500 RPM and lacks power. The following fault is stored in the DDE:

^ 4CAF: DDE control module internal

CAUSE
DDE software application error

CORRECTION
Do not replace the DDE.

Program the vehicle using ISTA/P 2.38.0 or a more recent version.

Vehicle integration (new): E89X-10-06-500 or later

Vehicle integration (new): E070-10-06-500 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.








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