Hi all happy Easter ,I've got a problem with indicators not working and are slow When working !i replaced the capacitator but still same looked at the wiring at the rear and there are a lot of joins regards paul

Check and clean every earth connection involved with the circumstances circuit. Run earth direct from battery with a crocodile clip on to see what effect it has

Would it be wise to run each wire with a straight run ,and we're to buy wire

Anything which will improve reliability and make fault finding easier would be worth doing. Get wire from the aptly named vehicle wiring products or any decent supplier don't wire every thing with red or black!

a fair few problems can be caused by the connections themselves.......especially if someone has used scotchloks, they can cause all sorts of problems.

Would 1mm cable do the job

Hi,

Here is a link to Vehicle Wiring Products' website cable section.

Standard PVC Cable
http://www.vehicle-wiring-products.eu/section.php/200/1/single-core-pvc-cable

Thinwall Cable (highly recommended)
http://www.vehicle-wiring-products.eu/section.php/198/1/single-core-pvc-thin-wall-cable

As you will see, the thinwall cable has a higher current rating for a given cable size so your loom tends to be more compact. It's also cheaper one the VWP website presumably because they sell more of it these days.

When calculating cable size, refer to the spec on the site if buying cable from VWP. If you are using existing cable then assume it is standard PVC cable unless you know it is the higher spec thinwall cable. To work out the current capacity you need for a given wattage, just add up all the loads which will be carried on a particular cable (eg. 5w indicator bulb x 6 bulbs = 30w) then divide that by 12 to get the amps required. So in this case all indicator bulbs together would be 30/12 = 2.5A but that would only happen if hazard lights were on. Normally it would only be 1.25A for 3 bulbs on a given side. On that basis 0.5mm thinwall cable (11A continuous rating) would be more than sufficient. Having said that, sometimes you need to consider the connections you will be attaching the wire to because the crimp connector you are using might only be able to securely capture wire within a small range of diameters.

I hope this helps,
Craig.