What does low DEF Diesel Exhaust Fluid mean?
So Friday I had the “Diesel Exhaust Fluid Quality Poor Message” pop up on the dash with a 100 mile warning. I restarted the truck with no warning. I drove about 25 miles and the “Low DEF” message came on.
Why does my GMC 2500 have a Def low message?
During cold temperature conditions a dealer may encounter a customer vehicle with a DEF low message or a speed limiting message even if the vehicle is known to be full of DEF. Additionally, the dealer may encounter a customer vehicle with a DEF range that does not reset after a refill event.
What’s the max speed for exhaust fluid refill?
The Exhaust Fluid Empty Refill Now message remains on the DIC until acknowledged by the driver. The 89 km/h (55 mph) Max Speed Upon Restart message is not acknowledgeable. At the next ignition ON event, the system will advance from Warning Level 6 to Warning Level 7.
Is there a warning light for diesel exhaust fluid?
For DEF (diesel exhaust fluid) system Quality or Tampering messages follow the current SI diagnostics, and review the newest version of PIP4829. This PI references an updated calibration available in TIS2WEB on 1/24/2011. This is an improvement over previous calibrations but is not the final update planned.
What does poor quality exhaust fluid really mean?
The dreaded ‘poor quality’ message and accompanied by P20EE and P207F. I drive this truck on the highway a lot – do 60+ miles regularly at 70+ MPH. I tow, and yea I do the around-the-town driving too. Doesn’t come on and indicate a regen is needed… just gives me the message.
Is there a Def issue with Duramax exhaust fluid?
Failed again, not codes came back, temp sensors OK. Noticed on deaccell nox sensor 1 not dropping below 5ppm, staying above 24ppm. Nox sensor slow to respond install latest software and install nox sensor 1 and perform qualtiy test and passed. First DEF issue I have ever had and hopefully it will be a long time before another.
For DEF (diesel exhaust fluid) system Quality or Tampering messages follow the current SI diagnostics, and review the newest version of PIP4829. This PI references an updated calibration available in TIS2WEB on 1/24/2011. This is an improvement over previous calibrations but is not the final update planned.
The Exhaust Fluid Empty Refill Now message remains on the DIC until acknowledged by the driver. The 89 km/h (55 mph) Max Speed Upon Restart message is not acknowledgeable. At the next ignition ON event, the system will advance from Warning Level 6 to Warning Level 7.