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Where is the Intelligent battery sensor located?

Tiny
BLESSING EWOBOR
  • MEMBER
  • 2010 BMW 750LI
  • V12
  • 2WD
  • AUTOMATIC
  • 111,111 MILES
There is a code on the ECU stating (CD8F01- LIN, message; intelligent battery sensor (IBS): Missing).
Where can I locate the sensor and how can it be tested for?
Tuesday, February 27th, 2024 AT 10:48 AM

3 Replies

Tiny
STEVE W.
  • MECHANIC
  • 13,573 POSTS
The sensor is part of the negative battery cable clamp. That fancy block with wiring that goes to the breakout box on top of the battery. Testing wise, you need the BMW factory scan tool or a very good aftermarket unit. In it there is a menu that tests the battery charging and the IBS responses during the test. Missing could be that the LIN connection is unplugged because of a different error. There is a TSB for the more common error. If you find it unplugged and get the error when it's plugged back in you can follow the TSB.

https://static.nhtsa.gov/odi/tsbs/2014/MC-10147923-9999.pdf
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Tuesday, February 27th, 2024 AT 12:55 PM
Tiny
BLESSING EWOBOR
  • MEMBER
  • 686 POSTS
Thank you.
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Tuesday, February 27th, 2024 AT 2:33 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,573 POSTS
You are welcome. You might want to set down before pricing a replacement if it shows as a failed part.
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Wednesday, February 28th, 2024 AT 12:15 AM

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