P0244-00

VOLVO TRUCKS
REMOTE DIAGNOSTICS REPAIR INSTRUCTIONS
DTC:
Description:
Applies to:
Bulletin:
Date:
P0244-00
RD22-001
November 16, 2022
Wastegate Stuck Close
US20 – US22 Emissions
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General Information
These repair instructions are intended to address the following fault(s):
DTC
Description
Possible Cause
Possible (Observable) Symptoms
P0244-00
Wastegate Stuck Close
EMS Software
None
Required Parts
Part Number
Description
Quantity
N/A
N/A
N/A
Repair Instructions
For US21-OBD20 to US21-OBD22 Emissions Turbo-Compound Engines, during instances of low chassis air
pressure the P024400 fault may occur due to a logic error.
For vehicles experiencing this fault, perform the following:
1. As of October 2022, a software update for the Engine Control Module (EMS) has been released that
addresses this issue. Ensure EMS software is current.
If EMS software is current:
2. Ensure that the vehicle is in a location with ambient air temperature between 18°F and 131°F (18°C and
55°C).
3. Start the vehicle. Allow air pressure to build fully - either by listening for the air compressor to shut off
(along with the audible hiss from the dryer) or simply idling the truck for 10 minutes.
4. Allow the engine to run until coolant temperature reaches 176°F (80°C).
5. Once the above conditions are met, switch the engine to the off position, wait 30 seconds and restart.
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© 2022 Volvo Group North America, LLC. Information is subject to change without notice.
VOLVO TRUCKS
REMOTE DIAGNOSTICS REPAIR INSTRUCTIONS
DTC:
Bulletin:
Date:
P0244-00
RD22-001
November 16, 2022
6. Allow engine to idle with the parking brake released for one minute. At this point the monitor should then
pass and heal the DTC.
7. Refresh Tech Tool and ensure the fault has not returned.
If the fault recurs after the above steps are performed:
If the fault remains after following the steps above, follow Guided Diagnostics and recommended actions for
this DTC.
Start an eService case. The case should include:
• A detailed description of the issue.
• The CBR solution number CBR-2078 Version 2.
• Any vehicle/repair history relevant to this case.
Additional Resources
These repairs are the most likely fix for the identified fault, if this does not fix the issue, Tech Tool will need to be used
for more detailed diagnostics. If filing a warranty claim, please include the ASIST case number.
Labor Code
N/A
N/A
Causal Part
N/A
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© 2022 Volvo Group North America, LLC. Information is subject to change without notice.