NHTSA ID Number: 10199696
Manufacturer Communication Number: P0244
TSB/Document Date: 2021-08-02
Summary
Wastegate Stuck Close
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TSB/Document ID: P0244
Replacement Service Bulletin Number:
MFR Communication Date: 2021-07-15
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
DTC:
Bulletin:
P0244-00
Date:
Description:
Applies to:
GDC21-009
July 15, 2021
Wastegate Stuck Close
US20 – US21 Emissions
For Spanish click here: ESPAÑOL
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
None
None
Required Parts
Part Number
Description
Quantity
N/A
Repair Instructions
For US21-OBD20 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. 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.
2. Switch the engine to the off position, wait 30 seconds and restart. At this point the monitor should then
pass and heal the DTC.
If the fault remains after following the steps above follow GD and recommended actions for this DTC. This
solution will be updated when new software has been released.
© 2021 Mack Trucks
, Inc. Information is subject to change without notice.
Page 1/2
DTC:
Bulletin:
P0244-00
Date:
GDC21-009
July 15, 2021
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
© 2021 Mack Trucks
, Inc. Information is subject to change without notice.
Page 2/2
DTC:
Boletín:
P0244-00
Fecha:
Descripción:
Wastegate atascado cerrado
Se aplica a:
Emisiones de US20 – US21
GDC21-009
15 de julio de 2021
Para inglés, haga clic aquí: ENGLISH
Información general
Estas instrucciones de reparación están destinadas a abordar las siguientes fallas:
DTC
Descripción
Causa posible
Posibles síntomas (observados)
P0244-00
Wastegate atascado cerrado
Ninguna
Ninguna
Piezas necesarias
Número de pieza
Descripción
Cantidad
N/A
Instrucciones de reparación
Para los motores turbo compuestos de emisiones US21-OBD20, durante los casos de baja presión de aire del
chasis, la falla P024400 puede ocurrir debido a un error lógico.
Para los vehículos que experimentan esta falla, realice lo siguiente:
1. Permita que la presión de aire se acumule completamente, ya sea escuchando que el compresor de aire
se apague (junto con el silbido audible de la secadora) o simplemente dejando el camión en ralentí
durante 10 minutos.
2. Ponga el motor en la posición de apagado, espere 30 segundos y vuelva a arrancar. En este punto, el
monitor debería pasar y reparar el DTC.
Si la falla persiste después de seguir los pasos anteriores, siga GD y las acciones recomendadas para este DTC.
Esta solución se actualizará cuando se lance un nuevo software.
© 2021 Mack Trucks
, Inc. La información está sujeta a cambios sin aviso previo.
Página 1/2
DTC:
Boletín:
P0244-00
Fecha:
GDC21-009
15 de julio de 2021
Recursos adicionales
Es muy probable que estas reparaciones solucionen la falla identificada; si esto no soluciona el problema, se
requerirá el uso de Tech Tool para diagnósticos más detallados. Si presenta una reclamación de garantía,
incluya el número de caso ASIST.
Código de trabajo
N/A
N/A
Pieza causal
N/A
© 2021 Mack Trucks
, Inc. La información está sujeta a cambios sin aviso previo.
Página 2/2
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