has anyone used one or got one?
I purchased on to test the trailer wiring and it comes up fine except pin 3 on the trailer. on the car I don't get a light at all.
if I plug the car into the trailer some lights work but not well , and that used to be down to earth problems .....I see mention of a mass wire in the instructions ....is it possible they mean mass=earth?
Also the instructions say push the yellow button on the side of it......but the tester itself says only push the yellow button to test trailer.
Any help appreciated.
I purchased on to test the trailer wiring and it comes up fine except pin 3 on the trailer. on the car I don't get a light at all.
if I plug the car into the trailer some lights work but not well , and that used to be down to earth problems .....I see mention of a mass wire in the instructions ....is it possible they mean mass=earth?
Also the instructions say push the yellow button on the side of it......but the tester itself says only push the yellow button to test trailer.
Any help appreciated.