know there have been so many posts on heated seats but I have not found the answer yet to my problem.
TDV8 3.6 2007 press the button for heated seat, 2 x Amber lights illuminate for not even half a second then go out, drivers seat & passenger seats not working. any ideas please.
Ian

I have a similar problem. The passenger and rears work but the drivers seat drops out after half a second or so. It worked ok until I got an original sub-harness to fix the hvac battery drain. The car is new to me but must gave had the drain for years because a battery isolator was fitted as they couldn’t trace the drain. Now the drain is cured but the driver heater drops out and at the same time the hvac drops out to but the restarts. If I unplug the harness the heater works ok.
Try yours again and watch the hvac lights.

Thank you I will have another look, the vehicle is new to me also as of July this year, I have got used to our 53plateand all its quirks but this one is a whole new learning curve, I will let you know of any progress.