Various Electrical Problems (61 10 05)

Publication date: 2005-08-01
Reference number: 61 10 05

VARIOUS ELECTRICAL PROBLEMS

TECHNICAL SERVICE BULLETIN

Reference Number(s): SI B 61 10 05, Date of Issue: August 2005

BMW:	E90 (3 Series) vehicles produced to May 29, 2005
GROUP:	61 - General Electrical Systems

Superceded Bulletin(s): S.I. B61 10 05, Date of Issue: August 2005

NOTE: This Service Information bulletin supersedes S.I. B61 10 05 dated August 2005.

SUBJECT

Various Electrical Problems

SITUATION

The customer may complain of the following intermittent conditions, particularly if the vehicle is driven over bumps in the road:

Temporary total failure of the vehicle body electronics.
Seat heating failure.
Airbag warning lamp illuminated.
ABS warning lamp illuminated.
Various K-CAN wire/message faults are stored: e.g. DE84, C944, E184, E584, A550, A3AE, A3AD, E444, E704, D904, C905, C907, C904.

CAUSE

Damaged seat wiring harness.

NOTE: The damage is most likely to occur if the seat is adjusted to its lowest position and tilted to its uppermost position.

CORRECTION

Repair the wiring harness and adequately insulate the sharp edges of the retaining plate for the fore-and-aft adjustment motor with fabric tape.

The illustration shows the underside of the seat cushion in the area of the seat module with the electrical connector detached, and the sharp metal edge most likely to damage the wiring harness.

Fig 1: Metal Edge Most Likely To Damage Wiring Harness