DB9 Top Gear Track
AO Silver Member
Join Date: Jan 2007
Location: United Kingdom
County: East Sussex
Yeah, I had a little look at the weekend. I'm getting 12v to earth on the 2 red wires (pins 1 and 2) and nothing on the other 2 when the switch isn't pressed.
With the switch pressed I'm getting around 5v and 12v on pins 3 and 4 respectively. Pin 4 is the one that looks like it gets a bit hot as there's some discolouration around it.
So, looks like all the wiring up to the switches and the switches themselves are ok. I can see the heating pads are separate with their own wiring from the ePer diagram. Interesting that if the backrest packs up both with fail, I'll leave for now and maybe get the seats out when the weather improves and I have more time.
I'd imagine replacing the heating pads will be tricky and time consuming.
All the best
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