Vauxhall Astra F (1991 - 1998) - 96 1.4 electrical problem

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Wed 25 Feb 2009 10:58
96 1.4 electrical problem - tertlehed
my radio,horn,hazards and interior lights will only work when headlights are switched on.then if i lower dash dimmer slightly they don't work,sometimes get buzzing noise from fusebox,any ideas?
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Wed 25 Feb 2009 12:44
96 1.4 electrical problem - Dynamic Dave
Most, if not all of those electrical items will be on the same fuse. Have you checked the fuse hasn't blown for the stereo, interior lights, hazzards, etc?

I suspect the 12v feed to the stereo from the headlight circuit (for the backlight display) is what's powering everything at the moment and turning down the dimmer reduces the voltage, thus why they then stop working.

Edited by Dynamic Dave on 25/02/2009 at 12:47

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Wed 25 Feb 2009 20:42
96 1.4 electrical problem - topbloke
sounds like an earth fault to me but dont ask which one, any other little signs that have happened lately that you have noticed
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