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Horn/Flasher Fuse Keeps Blowing on TD5

Geobloke

Geobloke

Posting Guru
Has anyone had a similar experience? My mums TD5 horn/main beam flasher fuse keeps on blowing. :(

Any suggestions as to what could be causing it?
 
my horn and indicators were on the same circut as the reverse switch, one of the wires fom the switch burned on the exhaust and shorted..causing the fuse to pop every time I reversed :D:D
 
Geo,


Sounds like you might have a short... or have one occasionally.

Get a headlamp bulb and a length of twin core....
A H7 bulb is ideal as it only has two pins, but a H4 bulb can be used too.

Using twin core wire (or two lengths or wire) connect one end to the two pins on the bulb (i.e. earth pin and feed pin) and then put the other two ends of the wire into the fuse holder - i.e. replace the fuse with the bulb and wiring.

If there is a direct short the bulb will light...

If that is the case, go along the wiring moving and flexing bits of it till the bulb goes out. Do the same with the headlamp bulbs.

When the bulb goes out, you've found the section of the wiring/or the switch that has the fault.

If it doesn't light, still move all the wiring and switches connected to the lights/horn you can reach.

Just make the leads on the bulb long enough that you can always see it...
A horn or a buzzer can also be used , but gets annoying after a bit if the fault can't be found.


Ian
 
I have made my circuit testing device as discribed above, works fine, all I need to do now is rip out the dash to access where the short is...

Look on the bright side Geo, at least your horn problem isn't as bad as mine was when it was stuck full on (even with the key out) in the middle of a sleepy village one dark evening:eek: :eek:
 
Porny said:
Geo,


Sounds like you might have a short... or have one occasionally.

Get a headlamp bulb and a length of twin core....
A H7 bulb is ideal as it only has two pins, but a H4 bulb can be used too.

Using twin core wire (or two lengths or wire) connect one end to the two pins on the bulb (i.e. earth pin and feed pin) and then put the other two ends of the wire into the fuse holder - i.e. replace the fuse with the bulb and wiring.

If there is a direct short the bulb will light...

If that is the case, go along the wiring moving and flexing bits of it till the bulb goes out. Do the same with the headlamp bulbs.

When the bulb goes out, you've found the section of the wiring/or the switch that has the fault.

If it doesn't light, still move all the wiring and switches connected to the lights/horn you can reach.

Just make the leads on the bulb long enough that you can always see it...
A horn or a buzzer can also be used , but gets annoying after a bit if the fault can't be found.


Ian
Click to expand...


Cheers Ian thats a well handy tip.
 
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