Electrical - Power Mirrors/Windows Inoperative
SI B61 04 05General Electrical Systems
November 2012
Technical Service
This Service Information bulletin supersedes SI B61 04 05 dated July 2005.
[NEW] designates changes to this revision
SUBJECT
Power Mirrors and/or Windows are Inoperative
MODEL
[NEW] E90
[NEW] Equipped with option 522 (Xenon lights)
SITUATION
The power windows and/or power mirrors are inoperative. The LED on the headlight switch is flashing. There is a check control message for Windows / Mirrors / Headlights. There may also be a complaint of water in one or both headlights. One of the following fault codes may be stored:
^ 9CBD - Communication with stepper motor box left defective
^ 9CBE - Communication with stepper motor box right defective
^ 9CC1 - Communication with mirror driver side defective
^ [NEW] 9CC2 - Communication with mirror passenger side defective / Right Stepper Motor Controller (SMC) signaling fault
^ 9CCF - Communication with LIN control defective
Left and/or right headlight housing cover is not properly fitted allowing water ingress into the Stepper Motor Controller (SMC) connector.
CAUSE
Left and/or right headlight housing cover is not properly fitted allowing water ingress into the Stepper Motor Controller (SMC) connector.
PROCEDURE
1. [NEW] Perform a vehicle test using ISTA to verify that the faults listed above are stored in the Footwell Module (FRM).
Note:
When the ISTA system message displays: Battery voltage only "XX.XX" V. Please connect charger. Please note the displayed battery voltage reading in the repair order comments section.
2. [NEW] Inspect the connector at each headlight (X13420 - Left and X13421 - Right) assembly for corrosion and replace as necessary.
3. [NEW] Make sure the headlight access covers (1) are installed correctly.
4. [NEW] Clear the faults and test the headlights for proper function.
[NEW] PARTS INFORMATION
[NEW] WARRANTY INFORMATION