Pathfinder Oil Level Sensor Fault

I have a Pathfinder too. Sounds similar to an issue I had a while back. The oil level sensor can be a pain. Have you checked the sensor's wiring harness for any obvious damage, like frayed wires or corrosion? Also, the 'error memory' you're seeing probably refers to the car's computer storing the fault code. A faulty sensor will trigger that. I would start by visually inspecting everything.

Thanks for the tip! I'll check the wiring harness as you suggested. When you had the issue, was it throwing all the same errors as mine? Also, did you end up replacing the whole sensor, or was it just a wiring fix?

Yep, pretty much the same errors. The light in the speedometer and the stored code. I fiddled with the wires a bit, and it helped temporarily, but the problem came back. In the end, I had to take it to a workshop. They confirmed it was the sensor, and they also found a slightly corroded connector. They replaced both. Honestly, unless you're super comfortable with auto electrics, I'd suggest getting it checked out by a pro.

Appreciate the advice! Sounds like I'm heading for the workshop then. I'll get them to check the sensor and the connector. They quoted around 95€ for the repair, so fingers crossed that fixes it!