If the above fault is complained of in these vehicles, and if the passenger compartment lighting also fails to switch off while driving, there may be a contact problem in one of the sliding doors.
Error code B1101 may be recorded in the error memory for the ‘Comfort, central locking’ system.
- B1101 is synonymous with “Check control line for nut2 of lock”.
This error entry may be misleading, because this control line is not installed on vehicles with radio-controlled locking.
In this case there may be an electrical problem due to excessive tension in the cables in the sliding door causing a wire to come off the contact switch at the bottom. This prevents the control unit from receiving any information for ‘function status, open’ and it therefore activates the associated interior light. If the connection to the door contact switch is broken you will need to replace the switch and reposition the cable set without tension. You should also make sure that the contacts can move freely.
Important safety notice
The following technical information and tips for practical use have been set up by HELLA in order to offer professional support to automotive workshops in their daily work. The information available here on this website is only to be used by appropriately trained specialist staff.
The reprinting, distribution, reproduction, exploitation in any form and disclosure of the contents of this document, even in part, is prohibited without our express written approval and indication of the source. The schematic illustrations, figures and descriptions are for explanation and presentation of the document text and cannot be used as a basis for installation or design. All rights reserved.
Not helpful at all