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voltage at terminal "b" (archive)
[ Follow Ups ] [ 7-series (E32) Message Board ] [ Msg. Board FAQ ]
Posted by Kevin on April 30, 2002 at 17:47:00:

In Reply to: OBC test 9 -- what does UB mean? posted by Patrick C 88 750 on April 30, 2002 at 17:36:58:

"u" is the German equivelant of "V" in electrical terms. Where terminal "B" is remains a mystery that has, to my knowledge, been unresolved by the combined technical wisdom of those on this board.

BTW - your voltage seems a bit low. If you look back at the numerous survey posts to the question "what is your ub voltage reading" most seem to find that a reading between 13.8 and 14.1 is "normal". You might consider the age of your battery, its water level or possibly the condition of your alternator or voltage regulator.

Kevin


I followed the instruction from
home.iae.nl/users/bts/obc.htm to unlock the OBC this morning. Now I can run test 9 to view voltage.
The display shows, for example, 13.43UB. Does UB mean anything like Voltage?

What other tests are useful?
Patrick C 88 750iL




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