Computers/Controls - MIL ON, No DTC, DMTL Test Plan INOP

SI B 12 18 10
Engine Electrical Systems

August 2010
Technical Service

This Service Information bulletin supersedes SI B12 18 10 dated July 2010.

[NEW] designates changes to this revision

SUBJECT
Service Engine Soon Lamp Is Illuminated: No Fault Stored in DME Memory or DMTL Test Plans Do Not Operate

MODEL
E82 and E88 (1 Series) with N51, N52K,[NEW]N54 and N55 engine
E90, E91, E92 and E93 (3 Series) with N51, N52K, [NEW]N54 and N55 engine
E70 (X5) with N55 engine
E71 (X6) with [NEW]N54 and N55 engine
F10 (5 Series) with N55 engine
F07 (Gran Turismo) with N55 engine

SITUATION

Vehicles with the N55 engine:

DMTL-related faults can be read from the DME memory, but the test plans cannot be calculated or the test plans fail to operate.

All vehicles with N51, N52K and [NEW]N54 engines and integration level E89X-10-06-501 or higher:

Faults cannot be read from the DME memory, but the Service Engine Soon lamp is illuminated.

CAUSE

DME and diagnostic software error

PROCEDURE

Submit a TC Case to the DMTL group with one of the following statements in the subject field:

^ N55 DMTL test plans do not operate;

or

^ The SES lamp is illuminated, but no faults are stored.

WARRANTY

For information only