Bendusastre

So I keep blowing fuse B4 (left footwell). And it seems to be when I use the remote when I lock/unlock the car. Not sure yet whether it's both lock/unlock or just one.

It's dangerous because when the fise blows I lose amongst other things RR brake light. RR positioning led light. RR reverse light. Middle brake light. FR drl.

This started yesterday afterr it rained. I got error codes about my lights. And self diagnoses this as the fuse given all the weird lights that were down.

CSK 911 C4S

Check to make sure your drains are clear under the battery cover.

Have any wet carpets?

Bendusastre

no wet carpets
no water under battery and i checked the drains in the rear (this is a convertible) and nothing clogging them either

CSK 911 C4S

Is the car new to you?

No accident?

Could there be some wire chafing in the doors causing a short?

If you replace the fuse to get everything working ...... and you don't lock and unlock your doors does the fuse still blow?

Bendusastre

I've had the car for 4 months. This just started. No accidents. And yeha fuse stays fine unless I use the remote.

CSK 911 C4S

Need to find the keyless entry module and start trouble shooting.

991Targa4S

here are the locations of the ECUs in 991.1 …..

CSK 911 C4S

I don't think it was asked but have you run a computer diagnostic on your car?

Go through all the modules and let the scanner do a test and see what pops up.

If there's a sensor that has failed I would think it would show up. Might help narrow down your issue.