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Omega General Help / Re: Brake fuse keeps blowing
« on: 19 July 2025, 14:05:12 »At risk of being cynical, the way your question was phrased along with reference to something that doesn't exist made me question the genuine nature of your post. Apologies if that cynicism was misplaced.
Without knowing ANYTHING about what was previously fitted or the towbar you have fitted, let alone any of the connections, boxes etc that may or may not have been fitted, what you're asking for is impossible to determine exactly what you cut or soldered.
The basic dealer fitted GM tow bar lighting connected directly to the tail lights. The 12V charging used a different 7 pin plug and ran straight to the engine bay. 13 pin plugs hadn't been invented when the Omega was last built.
If the car has a bulb warning system fitted then there's another box to fit.
Having fitted the basic dealer supplied GM kit, it's an easy hours work.
An afternoon to fit it from scratch. All I can suggest is that you undo everything you have done and start from scratch using the wiring diagram.
Haynes covers the wiring diagram side of things for the factory, and you'll need to follow the 'later models" diagrams.
For more specific help, you're going to have to show pictures for everything you've removed/cut/soldered.
I know 13-pin connectors didn't exist in 2001, but my Omega also has +12V for the caravan's services, so I connected what I had to the new 13-pin connector on the towbar, leaving isolated what wasn't needed.
I'll try disconnecting the rear lights to see if the fuse problem is there because, I repeat, it played this trick on me even before installing the towbar.
This evening I'll post some pics