Any thoughts on fuses blowing every time switch to main beam ?.
My donner is a combination of Cortina Mk 3 & 4.
It started with nearside side lamp fuse blown. I traced fault to earth problem and remade earth and cleaned out semi corroded stop/tail lamp holder, fitting new bulb and fuse.
Next day whilst driving noticed main beam warning illumination slightly comimg on/off whilst on side lamps.
Switched on main shell lamps to dipp beam and main warning lamp got brighter.
Assumed switched to main in place of dipp, so stalk switched to dipp. warning lamp went out. But main lamps angle not changed ?, so must have ben on dipp all time.
Switched again to main and lights diddnt change, but main beam warning lamp came on.
Next day found main beam fuse blown. Replaced it ,tryed lights to main beam !, fuse blown again.
Since then and 8 fuses later combinnation of things, headlamps removed from circuit, side lamps removed, all earth to lamp cases tested, all wires to lamps tested for short, all fuse position checked for shorts,Colume switches removed and tryed for shorts and opporation. Every time same main been fuse blows.
Manual says a headlamp relay in circuit. but not original builder and unable to locate it. Found and identified relays I did find. But no main beam relay.
Help...
My donner is a combination of Cortina Mk 3 & 4.
It started with nearside side lamp fuse blown. I traced fault to earth problem and remade earth and cleaned out semi corroded stop/tail lamp holder, fitting new bulb and fuse.
Next day whilst driving noticed main beam warning illumination slightly comimg on/off whilst on side lamps.
Switched on main shell lamps to dipp beam and main warning lamp got brighter.
Assumed switched to main in place of dipp, so stalk switched to dipp. warning lamp went out. But main lamps angle not changed ?, so must have ben on dipp all time.
Switched again to main and lights diddnt change, but main beam warning lamp came on.
Next day found main beam fuse blown. Replaced it ,tryed lights to main beam !, fuse blown again.
Since then and 8 fuses later combinnation of things, headlamps removed from circuit, side lamps removed, all earth to lamp cases tested, all wires to lamps tested for short, all fuse position checked for shorts,Colume switches removed and tryed for shorts and opporation. Every time same main been fuse blows.
Manual says a headlamp relay in circuit. but not original builder and unable to locate it. Found and identified relays I did find. But no main beam relay.
Help...
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