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      07-12-2021, 09:22 AM   #1
Processing61
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United Kingdom
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Drives: BMW E91 325D
Join Date: May 2019
Location: U.K.

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Car won’t start after battery went flat

Cutting a long story short; i was fitting a reverse camera which took longer than expected and in the process, the battery went flat, to around 11.2v.

So I’ve charged up the battery with a noco charger suitable for my battery and it finished charging, now reads 12.7v. But it now won’t start and before it would start fine. The battery is new and was all good before. When starting all I can hear is a click of a relay and then another click and that is it, no crank, nothing else.

I read the codes on inpa and did have one code 43F2 (included the pic), I reset that and it hasn’t come back since, it still wouldn’t start. I have checked all the fuses in the fuse box and they all were ok on a continuity test. I have also tried disconnecting and reconnecting the battery.

When I turn the ignition on the engine light is on, I can’t remember if this stays on until you start the car.

Where should I look next and what could be the problem?

I was reading about the ibs sensor so I may disconnect that and see if it starts disconnected.

Any help is appreciated
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