A puzzle I couldn't solve on my own...
The car's been flattening its battery when left for a while, so armed with a new battery I went to check what's going on.
On connecting there's a faint (very faint) clunk coming from what sounds to me - under the bonnet - the passenger side, maybe footwell.
First thought was the central locking, so pulled the fuse for that. No change. Electric windows, nope. In the end I've taken out every single fuse and relay in both the dash and under-bonnet fuse panels. And it's still doing it.
Then I twigged that the list of fuses and relays doesn't mention the sunroof. The logical assumption is that it's connected with the windows and just not mentioned. I went to test the sunroof and found that it's not working, just a click but doesn't move. What I should have done was pulled some fuses to see if that would stop the click, but didn't think of that at the time. Instead I bent the trim back and disconnected the switch. Guess what, still got the noise.
Unfortunately I was in the workshop on my own because if someone had sat inside I could at least of located where the noise is coming from.
An ammeter show that it draws about an Amp for a moment and drops back to 200mA.
Question then. Is there something that I've overlooked? Obviously some things needs permanent power but it's a 2002 car without an alarm and I can only think of the clock. Or - does anyone know if there's a hidden fuse and relay for the sunroof? (My thought there is that a relay could have a fault and disconnecting the switch won't disable the power to it).
The car's been flattening its battery when left for a while, so armed with a new battery I went to check what's going on.
On connecting there's a faint (very faint) clunk coming from what sounds to me - under the bonnet - the passenger side, maybe footwell.
First thought was the central locking, so pulled the fuse for that. No change. Electric windows, nope. In the end I've taken out every single fuse and relay in both the dash and under-bonnet fuse panels. And it's still doing it.
Then I twigged that the list of fuses and relays doesn't mention the sunroof. The logical assumption is that it's connected with the windows and just not mentioned. I went to test the sunroof and found that it's not working, just a click but doesn't move. What I should have done was pulled some fuses to see if that would stop the click, but didn't think of that at the time. Instead I bent the trim back and disconnected the switch. Guess what, still got the noise.
Unfortunately I was in the workshop on my own because if someone had sat inside I could at least of located where the noise is coming from.
An ammeter show that it draws about an Amp for a moment and drops back to 200mA.
Question then. Is there something that I've overlooked? Obviously some things needs permanent power but it's a 2002 car without an alarm and I can only think of the clock. Or - does anyone know if there's a hidden fuse and relay for the sunroof? (My thought there is that a relay could have a fault and disconnecting the switch won't disable the power to it).
