I've had an intermittent problem with my UCH for about a year, but it's so intermittent that I'm loathe to spend ~£400 on it in case it is a symptom, not a cause.
It's playing up a lot at the mo (a relay starts chattering, which knocks out the lights, windows, wipers and indicators), but it seems to have co-incided with my car smoking a bit more and the fog light (on the dash) coming on whilst indicating or braking. I'm therefore wondering if it's a bad earth that is causing this.
Although the fog light on the dash is showing up when indicating, it does not actually come on when you're looking at the back of the car. However, if you have the lights on, you can see them dimming to alternate with the indicators flashing.
I looked at a couple of youtube vids on tracking down earth faults, and it said to measure across the battery, then check the earthing points are at the same voltage. They are with the car off, but when the car is running, it's 12.8v across the battery, and 14v from the battery live to the alternator or the engine block.
I'm a bit confused about what to look at next, so would very much appreciate any help. Many thanks x
It's playing up a lot at the mo (a relay starts chattering, which knocks out the lights, windows, wipers and indicators), but it seems to have co-incided with my car smoking a bit more and the fog light (on the dash) coming on whilst indicating or braking. I'm therefore wondering if it's a bad earth that is causing this.
Although the fog light on the dash is showing up when indicating, it does not actually come on when you're looking at the back of the car. However, if you have the lights on, you can see them dimming to alternate with the indicators flashing.
I looked at a couple of youtube vids on tracking down earth faults, and it said to measure across the battery, then check the earthing points are at the same voltage. They are with the car off, but when the car is running, it's 12.8v across the battery, and 14v from the battery live to the alternator or the engine block.
I'm a bit confused about what to look at next, so would very much appreciate any help. Many thanks x