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NHTSA ID Number: 10173155

Manufacturer Communication Number: P208464

TSB/Document Date: 2020-04-02


Summary

Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 2 - Signal plausibility failure


DTC:

P2084-64

Bulletin:
Date:

Description:
Applies To:

GDC17-016
August 18, 2018

Exhaust Gas Temperature Sensor Circuit
Range/Performance Bank 1 Sensor 2 - Signal plausibility
failure
US13 – US Emissions

For Spanish click here: ESPAÑOL
General Information
These repair instructions are intended to address the following fault(s):
DTC

P2084-64

Description

Exhaust Gas
Temperature
Sensor Circuit
Range/Performance
Bank 1 Sensor 2

Possible Cause
x
x

x
x
x

Exhaust system leakage
Aftertreatment exhaust gas temperature
(EGT) sensors installed in the incorrect
location on the aftertreatment diesel
particulate filter (DPF)
Wiring harness
Connector
Exhaust Gas Temperature (EGT) Sensor

Possible (Observable)
Symptoms

Regeneration not possible

Required Parts
Part Number

Description

Quantity

21225020

Exhaust Gas Temperature (EGT) Sensor

1

NOTE: Before proceeding, please make sure that ALL electronic control modules are up to date and there are no
pending updates available.

Repair Instructions
Exhaust Gas Temperature (EGT) Sensor, Replacement
1.
2.
3.
4.
5.
6.
7.

Park the vehicle on a level surface with the steering wheel in the straight ahead position.
Apply the parking brake.
Place the transmission in neutral or park.
Install the wheel chocks.
Disconnect the cable from the battery's negative terminal.
Open the fairing (if applicable).
Disconnect the lanyard.

© 2016 Mack TruckseBay logo, Inc. Information is subject to change without notice.

Page 1/3

DTC:

P2084-64

Bulletin:
Date:

GDC17-016
August 18, 2018

8. Remove the fairing.

9. Remove the cable ties.

10. Disconnect the connector.
11. Remove the sensor.

12.
13.
14.
15.
16.
17.
18.
19.
20.

Install the sensor.
Torque tighten the sensor. Tightening torque: 45 ±5 Nm (33 ±4 lbf‫ڄ‬ft)
Connect the connector.
Install the cable ties.
Position the fairing (if applicable).
Connect the lanyard.
Latch the fairing.
Connect the battery cable to negative (ground) terminal.
Remove the wheel chocks.Additional Resources

© 2016 Mack TruckseBay logo, Inc. Information is subject to change without notice.

Page 2/3

DTC:

P2084-64

Bulletin:
Date:

GDC17-016
August 18, 2018

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
2581-03-02-06

0.5 – 2.0 (Depending on Model)

Causal Part

21225020

© 2016 Mack TruckseBay logo, Inc. Information is subject to change without notice.

Page 3/3

DTC:

P2084-64

Boletín:
Fecha:

GDC18-032
20 de febrero de 2020

Banco 1 Sensor 2 Rango/Rendimiento de circuito
del sensor de temperatura del gas de escape Falla de plausibilidad de la señala
Emisiones de US13 - US

Descripción:

Se aplica a:

Para inglés, haga clic aquí: ENGLISH

Información general
Estas instrucciones de reparación están destinadas a abordar las siguientes fallas:
DTC

Descripción

Causa posible
x
x

P2084-64

Banco 1 Sensor 2
Rango/Rendimiento
de circuito del sensor
de temperatura del
gas de escape

x
x
x

Fuga del sistema de escape
Sensores del gas de escape de
postratamiento (EGT) instalados en la
ubicación incorrecta en el filtro de partículas
de diésel de postratamiento (DPF)
Arnés de cableado
Conector
Sensor de temperatura del gas de
escape (EGT)

Posibles síntomas
(observados)

No es posible realizar la
regeneración

Piezas necesarias
Número de pieza
21225020

Descripción
Sensor de temperatura del gas de escape (EGT)

Cantidad
1

NOTA: Antes de continuar, asegúrese de que TODOS los módulos electrónicos de control están actualizados y no
hay actualizaciones pendientes disponibles.

Instrucciones de reparación
Sensor de temperatura del gas de escape (EGT), Reemplazo
1.
2.
3.
4.
5.
6.
7.

Estacione el vehículo en una superficie plana con el volante en posición recta.
Aplique el freno de estacionamiento.
Ponga la transmisión en neutro o estacionamiento.
Instale los bloqueos de las ruedas.
Desconecte el cable desde el terminal negativo de la batería.
Abra el compensador (si es aplicable).
Retire las correas.

© 2016 Mack TruckseBay logo, Inc. La información está sujeta a cambios sin aviso previo.

Página 1/3

DTC:

P2084-64

Boletín:
Fecha:

GDC18-032
20 de febrero de 2020

8. Libere los seguros.

9. Retire las correas.

10. Desconecte el conector.
11. Retire el sensor.

12.
13.
14.
15.
16.
17.
18.
19.
20.

Instale el sensor.
Apriete el sensor. Torsión de apriete: 45 ±5 Nm (33 ±4 libras‫ڄ‬pie)
Conecte el conector.
Instale las correas.
Coloque el compensador (si es aplicable).
Instale las correas.
Asegure el compensador.
Conecte el cable de batería al terminal negativo (tierra).
Retire los bloqueos de las ruedas.

© 2016 Mack TruckseBay logo, Inc. La información está sujeta a cambios sin aviso previo.

Página 2/3

DTC:

P2084-64

Boletín:
Fecha:

GDC18-032
20 de febrero de 2020

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
2589-03-02-03

0.5 – 0.6 (según la configuración)

Pieza causal

21225020

© 2016 Mack TruckseBay logo, Inc. La información está sujeta a cambios sin aviso previo.

Página 3/3

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TSB/Document ID: P208464

Replacement Service Bulletin Number:

MFR Communication Date: 2020-03-10

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: ENGINE AND ENGINE COOLING

MFR Component System:

MFR Component Subsystem:


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