DS5 Massage Seat Failure

I know your pain! I have a DS5 too, and had a similar thing happen with my massage seat. It turned out to be a problem with the wiring harness that connects to the seat. Have you had a look at the actual switch itself? The connections there can sometimes come loose. Specifically, carefully inspect the wiring and connectors underneath the seat. A wiring harness is a set of wires, terminals and connectors that run the electrical system, providing power and signals to various components. The error code you're seeing likely indicates a break in the circuit somewhere, preventing the massage function from activating.

Thanks a million for that tip! I'll crawl under there and have a good poke around. When you say 'wiring harness', are we talking about the big bundle of wires all taped together? And did your error code point you directly to the seat, or was it more general? I'm just trying to narrow down where to focus my efforts before I start dismantling the entire car!

Yep, exactly, the big bundle of wires all neatly taped together – that's the wiring harness. The code I got was pretty specific, mentioning something about a faulty circuit in the seat's control module. But honestly, tracing electrical gremlins can be a real pain. If you're not confident with electrics, it might be worth getting a workshop to check it out. They'll have the proper diagnostic tools to pinpoint the exact problem.

For anyone facing similar seat woes: took it to a workshop as suggested, and you were spot on – a dodgy connector under the seat. Apparently, a loose connection to the massage motor. Cost me 95€ to get it sorted, but at least my back is happy again! Thanks for pointing me in the right direction. Really appreciate it!