Estima oil temp warning light

Sounds familiar. I've got an Estima, and I had similar issues a while back. Was the sensor itself throwing the code, or were just the readings off?

I'm not sure about the exact error code. I only had the generic error readout and didn't check the code. Is there any easy way to find out?

Could be the sensor itself. But, given the intermittent oil pressure light, a bad connection sounds more likely. I'd get it to a workshop to check the wiring before swapping parts. It saved me money last time.

You nailed it. The shop found the plug corroded. They cleaned it up, and it's good as new. It cost 95€, but that's better than a new sensor.