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Old 15-03-2025, 11:48 AM   #1
BeeCee
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Join Date: Mar 2011
Location: Gippsland
Posts: 34
Default BCM fault on 2007 Tdci Hatch?

My friend has a 2007 Focus diesel & has intermittent problem with the indicators, A/c & keyless entry etc. not working. This seems to occur after rain (the vehicle is not garaged). Seems to rectify itself when out in the sun for a while . Seems to point to a moisture problem. Various auto electricians have looked at the vehicle to no avail. I recently checked battery voltage (OK), removed BCM & no moisture present in or around same. No corrosion or damage to connectors or pins in sockets . Replaced BCM & all functions working now except "L" indicator. Would greatly appreciate any advice as to what the cause may be.
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Old 15-03-2025, 07:06 PM   #2
marg99
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Join Date: Jul 2008
Location: Melbourne
Posts: 807
Default Re: BCM fault on 2007 Tdci Hatch?

similar systems to a bad earth wire
recheck earth wires especially in engine bay
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Old 16-03-2025, 12:44 PM   #3
BeeCee
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Join Date: Mar 2011
Location: Gippsland
Posts: 34
Default Re: BCM fault on 2007 Tdci Hatch?

Thanks for that marg99, vehicle is down in Melbourne & will check earths & main fuse/s in engine bay next time I am down there. Will also do a basic scan.
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