Bit of an odd problem regarding my brake light

Used to be when it rained my handbrake light would come on on the dash so I ended up disconnecting it from the handbrake but it seems that if it's wet or damp when I use my heated front screen it will bring up the handbrake light.

This is on a 90 XS so has a factory fitted heated front screen

Anybody got any ideas ?

Strange electrical happenings are invariably due to a poor earth.

Rougharse Racing said:

Strange electrical happenings are invariably due to a poor earth.

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Agreed. Check the tightness and cleanliness of the earth conections

Main earth to battery, if that's faulty it's been known for it to use the handbrake cable, before meltdown..

TheQ said:

Main earth to battery, if that's faulty it's been known for it to use the handbrake cable, before meltdown..

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+1 - And ..... if this is the case - you will loose your handbrake