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Total Electrical Power Loss
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06-01-2017, 09:15 PM | #1 |
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Drives: 2007 328xi E90 Sedan Graphite
Join Date: Jun 2011
Location: Minneapolis, MN, USA
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Total Electrical Power Loss
I replaced my neg battery cable due to an "IBS communication" error. No instruments have power now, the FOB just slips in & out, nothing works.
There is power to the front posts (12.73v), and there is power at the rear junction box and the neg/pos cables. I replaced the main fuse and battery already (battery failed a load test). Can anyone shed some insight into why replacing the neg cable caused this to happen? I even tried switching back to the old cable when it worked, but no luck. |
06-01-2017, 10:14 PM | #2 |
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2007
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electical e90 pdf
http://www.google.com/url?sa=t&rct=j...,d.cGU&cad=rja http://www.google.com/url?sa=t&rct=j...85464276,d.cGU http://www.google.com/url?sa=t&rct=j...85464276,d.cGU If you used battery back up from the OBD when changing the battery you could have have blown out the OBD fuse which also powers the instrument cluster. There are about 5 hot lines 3 of which are critical . Two power lines to the Engine Bay and one to the Cabin . You can run without the IBS and the dataline from the IBS to the DME. See first PDF. I would check to see the BST is intack. What do you mean by main fuse? Last edited by ctuna; 06-01-2017 at 10:24 PM.. |
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BimmerGeeks1180.00 |
06-01-2017, 11:20 PM | #3 | |
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Drives: 2007 328xi E90 Sedan Graphite
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battery, cable, electric, electrical, power |
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