Immobiliser /Electrical issues

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Immobiliser /Electrical issues

Postby Dom1981 » Tue Nov 26, 2019 3:08 pm

Ok, so I'm at a loss guys. Last 6 months giving me trouble.
Started when i went out to work one morning, car wouldn't unlock with fob, then wouldn't start, checked everything. Couldn't find a fault. Called AA. They said it was immobiliser. Most likely battery dead in fob.. But disconnecting the car battery reset it and it would start. But then the windows, indicators, tail lights wouldn't work. Then if you were driving they would suddenly all come back on.
Then maybe an hour later everything works as normal. Central locking, indicators, windows..
A month passes and same again. Disconnect battery to get it started. And sequence of no electricals working then all of a sudden.. An hour or aday later they are all working again.
Now today same issue.. But now alarm going off, wont lock or unlock. Can get it started. Alarm stops after starting but indicator lights stay on solid and the usual windows not working wtc.... I've been told a body control module.. Can anyone confirm this? Also they are 100 quid on ebay.. Providing the part numbers match. Is it a case of swapping them over? Or would i need it programmed. Sorry for long message and thank you for your help
Dom1981
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Re: Immobiliser /Electrical issues

Postby Lucky111 » Tue Nov 26, 2019 4:13 pm

You won’t get answer here pal nobody left they all went in 2016 .
Go find Hyundai coupe owners club sounds like your BCM had it be careful buying secondhand they often don’t work .
Look on Facebook HYUNDAI COUPE OWNERS CLUB
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