Yaris Diesel Particulate Filter Pressure Low

Sounds familiar! I had a similar problem with my Yaris diesel. The error code you're seeing indicates the pressure within your DPF (Diesel Particulate Filter) is not within the expected range. The DPF is designed to trap soot from the exhaust, and then periodically burn it off in a process called regeneration. If the pressure is too low, it could mean a few things: a faulty sensor, a leak in the exhaust system, or even a clogged DPF. Did you check your exhaust system? Any hissing sounds?

Cheers for the quick reply! I had a quick glance, but didn't notice any obvious leaks. What should I be specifically looking for, and where? Could it be anything else?

Well, exhaust leaks can be tricky to spot without proper equipment. You'd be looking for sooty deposits around joints and seams, or listening carefully for hissing when the engine is running. However, given the error code and your symptoms, a defective exhaust back pressure sensor is most likely. It's a sensor that measures the pressure in front of the DPF. If it's faulty, it could be sending incorrect readings to the engine control unit, preventing proper DPF regeneration and causing the issues you're experiencing. Honestly, I'd recommend getting it checked out by a trusted mechanic. They can diagnose it properly and replace the sensor if needed.

Thanks a million! Dropped it at the workshop, turns out it was indeed the exhaust back pressure sensor. 245€ later and she purrs like a kitten again. Appreciate the help!