(an original bosch is in the aftermarket about 220quid, the bmw price. State of Charge (SoC) is a calculated condition showing the current charge ofthe battery. If you're not comfortable with dismanteling an alternator (the rectifier is at the back, you dont have to open the complete alternator) you have to buy a new one. The measured values from the IBS are provided to the DME by way ofthe Binary Serial Data Interface (BSD) to calculate the State of Charge and State of Health forthe battery. I think you can get the rectifier/voltage regulator as a separate unit (it bolts from the alternator).įrom bmw its (obviously) pretty expensive (about 120 quid), but in the aftermarket for about 30 quid.īMW partnumber for the voltage regulator is 12317515319 Have you measured the battery voltage with the car running? How much was that? You can check if thats still connected or damaged. area network (CAN), or the serial peripheral interface(SPI) 17. 3, top, a message in the 12-bit Single Secure Message Format transmits one 12-bit data message, an 8-bit incremental counter, and the inverse of the most significant data nibble. I was having issues starting the other day so I figure that8217 s. 10268 (Hex) 281c- bit serial data interface signal (read that it could be the sensor in my positive terminal. This morning on my commute to work I was greeted with the not so friendly service engine soon light. 180 A and are managed via BSD (Bit Serial Data) interface. So I8217 m new to BMW and my first car is a 2004 330ci. The bsd wire is the connector that goes into the alternator (so not the big red wire but the smaller black connector). If the transmit FIFO becomes empty, and data is not available for transmission while. To solve problems with huge electricity consumption, for BMW E6X/E8X/E9X and following models. My obvious worry is driviing to get it fixed/diagnosed and breaking down on the way Thank you, so if i replaced the alternator ? can you fix a rectifier ? the alternator IS charging i know, who could find/change the bsd wire ?

Bit serial data interface signal bmw