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E-Class (W211) 2003-2009

Battery control unit

 
Old 06-29-2015, 08:36 PM
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Battery control unit

Hi everyone!
How can I test the battery control unit?
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Old 06-29-2015, 09:52 PM
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2009 E550 2000 Honda civic mash n' go
sds
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Old 06-30-2015, 02:13 AM
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Only star? :/
I can't check at home?
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Old 06-30-2015, 08:12 AM
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2009 E550 2000 Honda civic mash n' go
I've only ever used sds, maybe someone on here has a clever way of checking.
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Old 07-03-2015, 05:11 PM
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Battery control unit

When you turn the switch once the instrument cluster turn on & you choice the temperate display in cluster; & press the R-bottom 3time,
NOW YOU CAN START THE VEHICLE
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Old 07-03-2015, 09:42 PM
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My car is working fine but the upper control panel (UCP) is fault sometimes.(the Backlight work fine but the buttons not working. [seat heater-cooler, esp, hazard, etc] But if I lock the car whit key in the car and I pushing the hazard button after ~20sec, all buttons work fine)
I thought my BCU is fault but I've tried another BCU and the problem is not fixed.
How much voltage is normaly in the battery in standby? I monitored my voltage and this is 12,09-12,3
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Old 07-04-2015, 04:09 AM
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Battery control unit

I don't know about the solution but the battery's voltage is normal
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