This car has problem with all side and headlamps staying on, had to dissconnect battery to put them out and after reconnection they would sometimes come back on and if they did would not turn off. Has fault codes in instrument panel and also trip button on end of indicator stalk not working.
have checked every where on car for signs of water ingress or wiring damage but all seems ok.

I suspect fault in instrument panel as light switch connected direct to it which i think then sends commands to front and rear electronics modules. Very hard to diagnose? wondered if any one has ever heard of before or can help?
We had car in for rear discs and pads same day as fault occured!!

thanks

Graham

Hi Graham
Check in the right side on the boot behind the trim panel where the REM module is bolted, unbolt it and check if the loom to it is damaged or sitting in water.

Cheers Mick

Thanks for that Mick,in the mean time i thought unlikely but not impossible that it could be just the light switch and agreed with customer we had to eliminate that first and sure enough it was!
Problem now is that the o/s rear side and brake lamps are interacting and the centre stop lamp is pulsing?also rear fog lamps come on dim with rear lamps,have checked the rem unit for signs of damp but looks perfect as do all connections.
just like a bad earth but these work with switched earths i am thinking rem unit although didnt have these symptoms when car first came in
Any idea how i could test further? would a unit off another s type plug in and work?

thanks

Graham H.

Hi Graham
Check for blown or corroded fuse in boot fuse box,also the rem can be swapped as long as its the same part number.
Cheers Mick

Thanks Mick you were right it was just a blown fuse for o/s rear lamp! if you check them with a power probe you get voltage either side even when it is blown!
That is what i love about this job always something to learn!

thanks again

Graham.