Volvo Wheel Loader P244C00 Fault Code: Exhaust Temperature Too Low For Particulate Filter Regeneration (Bank 1) No Sub Type Information
Exhaust Temperature Too Low For Particulate Filter Regeneration (Bank 1) No Sub Type Information · ai-assisted, editor-reviewed · Last updated 2026-07-13
TL;DR
P244C00 sets when a moving or parked regeneration cannot reach the target exhaust temperature needed to burn off soot in the particulate filter. The engine may derate and lose power until the underlying cause is fixed and regeneration completes.
Medium severity. The machine keeps running but with reduced power due to engine derate, and regenerations will keep failing until the root cause is corrected. This can lead to a heavily loaded particulate filter if ignored for too long, so it should be diagnosed within the shift rather than left alone.
What does Volvo Wheel Loader error code P244C00 mean?
P244C00 means the engine control system tried to run a moving or parked regeneration to clean the particulate filter, but the exhaust never reached the temperature needed to complete the burn-off. When this happens, the regeneration event is called incomplete.
Because the filter cannot clean itself, soot keeps building up, and the ECM commonly responds by limiting engine power (derate) until the filter can be regenerated successfully or the machine is serviced.
This code points to a problem in the exhaust temperature management system rather than any single sensor. It can be caused by the aftertreatment fuel dosing system, exhaust sensors, the turbocharger, the inlet throttle, or simply operating conditions that made it hard to reach regeneration temperature.
Common causes of P244C00
- Clogged aftertreatment fuel nozzle or fuel pipe
- Defective aftertreatment fuel dosing unit
- Defective differential pressure sensor (stuck)
- Defective exhaust gas temperature sensor
- Extreme cold climate
- Low engine temperature caused by a defective coolant thermostat
- Driving at high altitude
- Defective turbocharger
- Clogged or defective inlet throttle
How to troubleshoot Volvo Wheel Loader P244C00: first checks
- Confirm engine coolant temperature is in the normal operating range, since a stuck-open or failing thermostat can keep coolant, and exhaust, too cool for regeneration.
- Check for other active codes tied to the turbocharger, inlet throttle, or the aftertreatment fuel dosing unit, and address those first since they can prevent P244C00 from clearing.
- Inspect the aftertreatment fuel dosing nozzle and fuel pipe for clogging, and clean if needed.
- Inspect the inlet throttle for clogging or physical damage, and clean or replace as necessary.
- Review recent operating conditions: regeneration is expected to occur with ambient air temperature between -15°C (5°F) and 40°C (104°F), ambient air pressure between 75 kPa (10.9 psi) and 200 kPa (29.0 psi), engine coolant temperature between 65°C (149°F) and 100°C (212°F), engine speed between 900 rpm and 2000 rpm, and engine torque between 350 Nm and 3000 Nm. Operating well outside these windows, such as extreme cold or high altitude, can prevent regeneration from completing even with no other fault.
- If the dosing unit, nozzle, and sensors check out, test the aftertreatment fuel dosing unit directly and review any codes it produces afterward to isolate the root cause.
How the code clears
No separate clearing step is listed beyond correcting the root cause. Once the underlying issue such as a clogged nozzle, faulty dosing unit, sensor problem, or restricted inlet throttle is fixed, a moving or parked regeneration should be able to reach target temperature and complete normally, which should allow the code to clear and the derate to lift. Certain other codes involving the fuel dosing system, exhaust temperature or pressure sensors, and network communication can inhibit P244C00 from being set or cleared, so those should be resolved as part of the process.
Frequently asked questions
What does P244C00 mean on a Volvo wheel loader?
It means a moving or parked regeneration was attempted but the exhaust never reached the temperature needed to burn off soot in the particulate filter, so the regeneration was incomplete.
Why is my Volvo loader losing power with this code?
The engine control system commonly applies a power derate when regeneration keeps failing, to protect the aftertreatment system and prompt service before the filter loads up further.
Can cold weather or high altitude cause P244C00 on its own?
Yes. Regeneration is expected under specific ambient temperature, pressure, coolant temperature, engine speed, and torque conditions. Extreme cold climate or driving at high altitude can push conditions outside that window and prevent the exhaust from reaching target temperature.
What parts should be checked first for this code?
Start with engine coolant temperature and thermostat operation, then check the aftertreatment fuel dosing unit and nozzle for clogging, the exhaust gas temperature sensor, the turbocharger, and the inlet throttle for restriction or damage.
Will the code clear itself after a successful regeneration?
No separate clearing step is listed, but fixing the root cause so a regeneration can reach target temperature and complete should allow the fault to clear on its own.
Are there other codes that affect P244C00?
Yes. A number of codes tied to the fuel dosing system, temperature and pressure sensors, and network communication can inhibit P244C00 from setting or clearing, so any active related codes should be resolved first.