Electrical - Various Electrical Functions Inoperative
SI B61 01 11General Electrical Systems
July 2010
Technical Service
This Service Information bulletin supersedes SI B61 01 11 dated February 2011.
[NEW] designates changes to this revision
SUBJECT
K-CAN Wiring Shorted in Various Locations
MODEL
E90, E91, E92, E93 (3 Series)
SITUATION
Various functions in the vehicle are not operating. This includes instruments, door locks, wipers, and other body electrical functions. This can also be accompanied by instrument cluster warning lamps, including the check control message "Electronic Malfunction".
CAUSE
K-CAN wiring in the vehicle shorted in various locations
PROCEDURE
Troubleshoot any K-CAN communication faults by completing the CAN Analysis test plan with ISTA. This test plan will automatically be linked to the faults stored in the vehicle. If the test plan results state that the root cause of the communication errors is the K-CAN (wiring), follow the guidelines in the attachment for reported areas where the wiring may be shorted. [NEW]Thanks to Robert Davis of Irvine Eurocars, LLC, for submitting a PuMA Case with information about a new wiring short location (6).
If the Can Analysis test plan results indicate other results as the root cause, follow the troubleshooting as described within the test plan and functional description documents.
WARRANTY INFORMATION
For information only
ATTACHMENT
B610111 - Procedure