Sunday, Nov 21, 2021 at 14:35
" If you follow the standard colour coding and pin diagrams you can't go wrong - unless someone has stuffed up elsewhere".
It's all fine and
well when competent people do the wiring, unfortunately though Installers don't seem to be trained
well, if at all.
Not long ago I was chasing a high mounted brake light issue on our cars twin cab canopy. The installer took the easy way out of not going to the proper connection in a difficult location. They took the wiring to up under the dash but the trouble was that in the entire length there were 3 changes of colour and the connecting points were buried in protective tubing. The wires at the light itself were different to where they exited the canopy rear hatch and then back inside the canopy
shell, then changed again after they exited the canopy to a hidden joint under the vehicle cab. Where they picked up power under the dash was very amateurish. Unfortunately I have to say I got burnt again later on as the installers business was the only one in that location licenced to install my GVM upgrade kit and that was a botched effort as
well.
I was trained in low DC volt work and had
test lamp, multimeter and a wire tracer but it still took an unnecessarily long time to find it all. The canopy manufacturer's wiring diagram was difficult to follow but was ignored anyway.
Sadly, our caravan displayed similar lack of training in its wiring but few, if any, van Manufacturer's provide even a basic wiring diagram to owners. From various discussions on Forums it seems that even how fridges are wired for 12V power can vary, even within the same Manufacturer.
When negotiating buying our van I overheard one end of a phone discussion between the Salesman and their workshop regarding a motorhome fault. There was a lot of buck passing going on between the base vehicle Manufacturer, the conversion facility and the Dealer workshop of a 12V issue. What hope does a buyer have with either self, or remote auto electricians, to fix issues.
FollowupID:
917274