What happens if... - Alfa Romeo Forum
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What happens if...

I disconnect the battery in my GT 1.9JTD? Will it result in all the car's electronics being reset?

I ask because my xenon dipped beam auto-leveling seems to be misbehaving. I used to be able to see the dipped beams visbly dip down then rise up, settling at a level that wouldn't blind oncoming drivers at night or the drivers ahead of me on the motorway.

Now, when turning on the dipped beams, they turn on at a fixed position (no dipping down then rising up). The only exception, which I discovered by accident, is if the dipped beam light switch is turned to the on position before I turn the key in the ignition to the first position or all the way to start the car. Great if I need my dipped beams at the start of a journey at night but not so good if I need to turn them on while driving. Perhaps disconnecting the battery and resetting the electronic gizmos might help? Or will I simply cause other problems such as the car immobilser failing to recognise my key, remote not working etc?

Help needed!!! Any suggestions, please? It seems that given the above, the auto-leveling motors on the xenons work (albeit only if the switch is on before starting the car) but why does it fail to work when the ignition is on?

Alfa Romeo GT Cloverleaf Q2 170bhp
Alfa Romeo 159 Sportwagon TI Q4 210bhp
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Re: What happens if...

Disconnecting the battery wont hurt your electronics, but it also wont help the problem you have, there is no logic circuit as the type your thinking of soapart from hiting the dip motors, there's not much else that can be done. Removing them and refiting may work, but I do hesitate to say that's a SOLUTION.
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