Brief description

The intelligent battery sensor (IBS) is a mechatronic component with its own microcontroller for monitoring the battery condition.

The IBS is secured and connected to the negative terminal of the battery. The supply voltage for the IBS is fed across a separate cable. For data transfer, the IBS is connected to the DME (Digital Engine Electronics) or DDE (Digital Diesel Electronics) via the BSD (bit-serial data interface).

Notes for Service department 

General notes 

Replacing the IBS. 

The vehicle must remain in a passive state for at least 3 hours after the new IBS is installed: Only then can the new IBS determine the battery condition. Provided that the battery's state of charge is satisfactory, the < Extreme battery discharge> message will then disappear from the Check Control display and the battery's actual charge status can be shown.