Fuse 7 blowing when brake pedal pressed

1. Andy8v Infrequent Poster Joined: Apr 2008 West Yorkshire Posts: 157 2002 Silver VTR

   #1 7th August 2013, 17:32

   I've had to fully strip the front end of my lasses saxo to have the inner arches welded due to rust.
   It's all back together now and looking great fully undersealed and painted.
   Problem is since rebuild I have got no brake lights and car is ready for MOT apart from brake lights issue.
   I've checked loom and no breaks in wires.
   Fitted new brake switch cleaned all engine bay earths up but as soon as pedal pressed fuse 7 pops. Used over 15 fuses. What could it be?
   It's a problem since car was stripped and rebuiit so must be engine bay related. All other lights are perfectly fine.
   Could It be light clusters or reverse switch (but reverse lights work with brake switch disconnected)
   Thanks
   
   Andy
2. Andy8v Infrequent Poster Joined: Apr 2008 West Yorkshire Posts: 157 2002 Silver VTR

   #2 7th August 2013, 17:50

   Had interior fully removed too so I could have a seat mount welded but looking over interior loom all seems fine no wires broken or trapped when refitting interior.
3. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #3 7th August 2013, 20:27

   Check your rear lights,ie the bulbs & circuit boards.
4. Andy8v Infrequent Poster Joined: Apr 2008 West Yorkshire Posts: 157 2002 Silver VTR

   #4 7th August 2013, 20:42

   Quote:

   Originally Posted by stevo67 Check your rear lights,ie the bulbs & circuit boards.

   Borrowing a mates lenses tomorrow. Will swap them over and if it's still blowing the fuse I can rule them out.
   Had some water get into them and they aren't the best condition so we'll see.
   Thanks
5. D4NNY-801 Infrequent Poster Joined: Feb 2013 Posts: 165 Saxo VTR

   #5 7th August 2013, 20:53

   Check to see if you've put a arch liner screw through a wire or something.
   We had a motor come into work with the interior light fuse kept blowing, turns out they had had the roof liner down and put one of the sun visor screws through the loom
6. shaund123 Infrequent Poster Joined: Apr 2012 newcastle Posts: 206

   #6 7th August 2013, 21:43

   Have you changed your bulbs by any chance??
7. Andy8v Infrequent Poster Joined: Apr 2008 West Yorkshire Posts: 157 2002 Silver VTR

   #7 7th August 2013, 23:14

   Quote:

   Originally Posted by D4NNY-801 Check to see if you've put a arch liner screw through a wire or something. We had a motor come into work with the interior light fuse kept blowing, turns out they had had the roof liner down and put one of the sun visor screws through the loom

   Had arch liners back off and no screws through wires. Everything as it should be
8. Andy8v Infrequent Poster Joined: Apr 2008 West Yorkshire Posts: 157 2002 Silver VTR

   #8 7th August 2013, 23:16

   Quote:

   Originally Posted by shaund123 Have you changed your bulbs by any chance??

   Yeah replaced both bulbs as one had blown and was black.
9. Andy8v Infrequent Poster Joined: Apr 2008 West Yorkshire Posts: 157 2002 Silver VTR

   #9 8th August 2013, 13:45

   Its not the light clusters as they work on my mates car.
   Could I be reverse switch shorting even though that works with brake switch disconnected.
10. Andy8v Infrequent Poster Joined: Apr 2008 West Yorkshire Posts: 157 2002 Silver VTR

    #10 8th August 2013, 20:56

    Just found that earth wire for cig lighter was shorting to stereo cage. Brake lights fixed!
11. Andy8v Infrequent Poster Joined: Apr 2008 West Yorkshire Posts: 157 2002 Silver VTR

    #11 10th August 2013, 19:46

    Quote:

    Originally Posted by Andy8v Just found that earth wire for cig lighter was shorting to stereo cage. Brake lights fixed!

    Spoke too soon!
    Its back to blowing fuses today!
    Can a reverse switch be causing a short even though with brake light switch disconnected reverse lights work. Could it still be faulty?
12. shaund123 Infrequent Poster Joined: Apr 2012 newcastle Posts: 206

    #12 14th August 2013, 23:50

    Ano it sounds daft mate but have you got the correct bulbs in? I done exactly the same and it was blowing the fuse constantly