The brake lights on my caravan (Sprite Swing) are not working, but all other lights work.
I have tested the globes and both elements are working in both globes.
I've tested the vehicle trailer electric socket, with only brake lights on, and the car is delivering the required 12v to the relevant pins.
I've tested the cables at the back of the caravan at the junction before it splits to the lights, and there is still 12v on the relevant wires.
With both globes in the light sockets, neither come on.
If both globes are out the right side gets 12v for brake light and the left gets 6v.
If I put the bulb in the right, it does not light up, and the left stays at 6v.
If I take out the right bulb, and put in the left bulb, then the right side loses power and gets nothing and the left bulb does not light up.
If I take out the left bulb then the right side gets 12v again.
Mind. Blown.
Anything obvious from the above test results?
Thanks David
I have tested the globes and both elements are working in both globes.
I've tested the vehicle trailer electric socket, with only brake lights on, and the car is delivering the required 12v to the relevant pins.
I've tested the cables at the back of the caravan at the junction before it splits to the lights, and there is still 12v on the relevant wires.
With both globes in the light sockets, neither come on.
If both globes are out the right side gets 12v for brake light and the left gets 6v.
If I put the bulb in the right, it does not light up, and the left stays at 6v.
If I take out the right bulb, and put in the left bulb, then the right side loses power and gets nothing and the left bulb does not light up.
If I take out the left bulb then the right side gets 12v again.
Mind. Blown.
Anything obvious from the above test results?
Thanks David