Thanks for test - here's what I did:
Took my test light and hooked one end up to the negative battery terminal. I took the other end and hooked it into my trailer plug (truck side) at the tail light terminal with the lights in the truck on - the test light came on as expected. When I shifted...
Thanks for jumping back in! No I haven't sorted it out, but I did bite the bullet and take the truck to an auto electrician who supposedly found nothing wrong. I will take the trailer out in a couple of days to more closely examine all the wiring. My main question is...Does testing the trailer...
It's a 98 Land Rover Discovery 1. The previous owner had cut the factory wire harness out and hardwired the trailer plug (rather than use an adapter from the small round 7-pin to the standard 7-pin flat we use in New Zealand). The truck does have a combined brake/running light bulb with the...
Well I had a go with your suggestion and found the light worked indicating all the circuits were responsive both independently and altogether at the truck end of the trailer plug. Even when plugging the trailer on and using the test light on the exposed contact points on the trailer plug the...
Thanks for that. I will definitely be trying this tomorrow morning. And what would it mean if (as expected?) one of the circuits didn't work when all were operated simultaneously? Say the left turn signal wasn't registering, would I then just trace that line in the truck and search out a short...
Thanks for that awesome reply.
The reason I'm tempted to think the trailer wiring is all good is because all the light functions worked fine when hooked up to another vehicle and also when I direct connect the trailer plug wires to a separate battery (running through all light circuits...
The truck I bought had the original 7-pin trailer plug cut out and the wires were then hard-wire spliced into the 5 wire standard Narva plug. My trailer wiring is all good and works on other vehicles and from a direct battery feed, but coming through the truck it's a bit dysfunctional. Turn...
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