Guide to SCR, DPF, DEF, and EGR Removal for Detroit Diesel Engines

Disclaimer: This guide is for informational purposes only. Removing emission control systems is illegal in many jurisdictions and can result in penalties. Always comply with local, state, and federal laws.

Detroit Diesel engines, including DD13, DD15, and DD16 models, come equipped with an emissions control system consisting of a Diesel Particulate Filter (DPF), Exhaust Gas Recirculation (EGR), Diesel Exhaust Fluid (DEF), and Selective Catalytic Reduction (SCR). These systems are designed to reduce emissions but can cause maintenance issues and performance losses. This guide details the steps to remove these components properly.

Step 1: ECM Reprogramming

Before making any physical changes, the Engine Control Module (ECM) must be reprogrammed to disable the emission control features.

Why ECM Tuning is Necessary?

• Prevents engine errors and diagnostic trouble codes (DTCs)
• Disables limp mode
• Optimizes engine efficiency and fuel economy
• Allows the engine to run without DEF fluid or DPF regenerations

Professional ECM tuning is required to ensure the engine runs correctly. At DPF DELETE SHOP, we offer remote ECM tuning services to remove DPF, EGR, DEF, and SCR restrictions while maintaining engine safety.

Physical Modifications

After successful ECM reprogramming, proceed with the physical removal or deactivation of the emission components.

Step 2: EGR System Delete

EGR (Exhaust Gas Recirculation) System

The EGR system recirculates a portion of the exhaust gases back into the engine’s intake to reduce nitrogen oxide emissions. To deactivate:

• Blocking EGR Flow: Install block-off plates on both the “hot” and “cold” sides of the EGR system.
  • Hot Side: Place a steel plate where the EGR manifold connects to the exhaust manifold.
  • Cold Side: Place a steel plate where the EGR manifold connects to the intake manifold.

On the photo below You will see place where block off plates(expansion plugs in this case) go.
The photo is taken on Detroit Diesel DD15, but DD13 & DD16 are very similar.

DetroitDiesel DD15 exhaust side block off plate location

• We used expansion plugs, to block both ends of flex pipe.

Flex pipe blocked off on DD15

• Below is the photo of intake side – crossover pipe.
  Unbolt corssover pipe, and put a plate between it & intake manifold.
  The photo is taken on Detroit Diesel DD15, but DD13 & DD16 are very similar.

Detroit Diesel DD15 intake side block off plate location (crossover pipe)

• Step 3: One-Box System Modifications (DPF, DOC, SCR Removal)

Detroit Diesel engines feature an integrated One-Box system containing:

• Diesel Oxidation Catalyst (DOC)
• Diesel Particulate Filter (DPF)
• Selective Catalytic Reduction (SCR)

To modify these components:

DPF and DOC:

• • Remove the One-Box assembly from the vehicle.
  • Open the assembly and extract the filter materials from both the DPF and DOC sections.

• DOC must be hollowed out as well, on the photo below arrows point out to DOC filter.

Detroit Diesel DD15 DPF cans after delete

SCR DELETE:

• • The SCR unit is more complex due to its construction.
  • Carefully cut open the SCR housing.

Cutting open SCR filters on DD15

• Remove the internal catalyst materials.

Hollowing out SCR filters on DD15

• Weld the housing back securely to prevent exhaust leaks.

Welding back shut SCR cans on DD15

Note: Modifying the One-Box assembly requires precision to ensure structural integrity and proper exhaust flow. It’s recommended to consult with professionals experienced in exhaust system modifications.

Post-Modification Considerations

• Sensor Management: After removing or disabling emission components, address any associated sensors. This may involve disconnecting or simulating sensor inputs to prevent error codes.
• Regular Maintenance: Even with these modifications, continue regular engine maintenance to ensure longevity and performance.
• Legal Implications: Always consider the legal ramifications of such modifications. Operating a vehicle without mandated emission controls on public roads is illegal in many areas and can result in fines or other penalties.

Why Choose DPF DELETE SHOP?

At DPF DELETE SHOP, we specialize in remote ECM tuning services for all Detroit Diesel engines. Our services include:

✅ Professional DPF, EGR, DEF, and SCR deletion

✅ Safe and reliable ECM tuning

✅ Increased fuel efficiency and engine longevity

✅ Remote tuning via TeamViewer for fast service

Contact us today to get your Detroit Diesel DPF Delete professionally done!

HOW TO REMOVE EGR COOLER 6.7 CUMMINS

STEP-BY-STEP GUIDE TO DPF, EGR, AND DEF DELETE FOR CUMMINS ENGINES

If you’re looking to improve the performance, fuel efficiency, and longevity of your Cummins engine, a DPF, EGR, and DEF delete is a popular solution. This guide will walk you through the process of removing these emissions systems, ensuring your engine operates at its full potential. Whether you own a 6.7 Cummins or another model, this step-by-step guide will help you achieve optimal results.

What You’ll Need:

Before starting, gather the following tools and materials:

• DPF EGR DEF delete kit (cummins isx egr block off plate)
• Socket set and wrenches
• Screwdrivers
• Safety gloves and goggles
• Laptop (for ECM reprogramming) (how to delete egr from ecu)
• Reliable tuning service (like DPF Delete Shop for remote ECM tuning)
• Nexiq 2 adapter or any other that complies with the RP1210 protocol

ECM Reprogramming

Begin by reprogramming the Engine Control Module (ECM) to deactivate the DPF, EGR, and DEF functionalities. It is important that this process is done by people trained in the subject. Contact us, so we can help you with the ECM reprogramming. Our ECM tuning will allow you to lock the EGR valve and disconnect all EGR sensors. Professional ECM tuning ensures the engine operates optimally without triggering fault codes or entering limp mode.

LIST OF ALL OUR DELETE TUNES FOR CUMMINS ENGINES.

Physical Removal of DPF

• Extract the DPF Unit: Detach the DPF from the exhaust system.
• Install a Straight Pipe: Replace the removed DPF with a straight pipe to maintain exhaust flow.
• Disconnect Sensors: Unplug all sensors associated with the DPF, including temperature and pressure sensors, to prevent erroneous readings.

How to eliminate EGR valve

EGR System Deactivation

Block Off EGR Pathways: Install block-off plates at both the intake and exhaust junctions of the EGR system to prevent exhaust gases from recirculating.

How to remove a EGR valve: Steps to follow

The steps to block the EGR are the same on all Cummins engines.
The EGR must be blocked with steel plates on both the cold and hot side.
The first blocking plate goes in the position where the EGR manifold meets the exhaust manifold.
The second blocking plate goes in the position where the EGR manifold meets the intake manifold.
For the best engine performance, we always recommend blocking the EGR on both the cold and hot sides.

INTAKE SIDE BLOCKAGE (COLD): The air volume and the geometry of the intake manifold will not be affected by the EGR tubes.

EXHAUST SIDE BLOCKAGE (HOT): The geometry of the exhaust manifold will be returned to the factory one.
Example of the position of the EGR hot side plate

(photo taken from a CM2250/CM2350/CM2350A X15 ISX engine) All other cummins engines are almost the same( CM871, CM2150D, ISL, ISC, ISB, ISM)

Cummins CM2250/CM2350/CM2350A X15 Engine Exhaust Side Block Off Plate Location

Example of the position of the cold side (intake) EGR plate.

Cummins CM2250/CM2350/CM2350A X15 Intake Side Block Off Plate Location

Unplug EGR Valve Connector: Disconnect the electrical connector from the EGR valve to disable its operation.

Cummins CM2250/CM2350/X15 EGR Valve Electrical Connector Location

Disconnect EGR Sensors: Unplug sensors related to the EGR system, such as the differential pressure sensor and temperature sensor, to avoid false signals.

EGR sensor locations on CM2250/CM2350/CM2350A X15 ISX.

Cummins CM2250 EGR Differential Pressure Sensor Location

/CM2350/X15 EGR Temperature Sensor Location Cummins CM2250/CM2350/X15

How to delete def system

DEF System Decommissioning

Drain DEF Tank: Empty the DEF tank to prevent any residual fluid from being injected into the exhaust.

Disable DEF Injector: Disconnect the DEF dosing valve to stop the injection of DEF into the Selective Catalytic Reduction (SCR) catalyst.

Unplug DEF Sensors: Disconnect sensors monitoring DEF quality, level, and temperature to prevent system errors.

Post-Removal Inspection

Verify System Integrity: Ensure all block-off plates are securely installed and there are no exhaust leaks.

Check for Diagnostic Trouble Codes (DTCs): Use a diagnostic tool to confirm that no DTCs are present after the modifications.

Test Drive: Conduct a thorough test drive to ensure the engine operates smoothly and that performance has improved as expected.

Conclusion:

By following this guide, you can successfully remove the DPF, EGR, and DEF systems from your Cummins engine, leading to enhanced performance and reduced maintenance. Always ensure that such modifications are permissible in your area and understand the environmental implications of these actions.

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P22FE00
PID: EMS
SPN: N/A
FMI: N/A
Description: ISO/SAE Reserved
Troubleshooting:
Diagnostic Trouble Code (DTC):
ISO/SAE Reserved
Code Description
Component/System: NOx Sensor No. 2 – High sensor voltage
Monitor Strategy: Poor device
Fault Limit: Invalid Signal for more than 5 seconds
Enable Criteria:
Engine Speed more than 550 RPM
Battery Voltage within 11-16 Volts
Disable Criteria: P2200, P2203, P220A, U029E not active.
Time Taken in Storing Fault Code: 10 seconds
Activation of MIL: 2 Drive Cycles 

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P244A00
PID: EMS
SPN: N/A
FMI: N/A

Description: Aftertreatment 1 Diesel Particulate Filter Differential Pressure Too Low (Bank 1)
Troubleshooting:
The function identifies and indicates malfunction of the aftertreatment diesel particulate filter
(DPF) by analyzing the pressure drop over the aftertreatment DPF. This is done by making a
check for deviation between sensor value and a model pressure drop. In some extreme cases
the engine will derate.
Conditions for diagnostic trouble code (DTC):
1) DPF Differential pressure too low
Observable symptoms
1) None
Probable cause
1) DPF Sensor lines connected incorrectly
2) Differential pressure sensor lines plugged or damaged
3) Aftertreatment DPF Differential Pressure Sensor
4) Aftertreatment Diesel Particulate Filter (DPF)
5) Exhaust leakage prior to the aftertreatment diesel particulate filter (DPF) unit.

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P245900
PID: EMS
SPN: N/A
FMI: N/A

Description: Diesel Particulate Filter Regeneration Frequency (Bank 1)
Troubleshooting:
This diagnostic function detects if the regeneration frequency increases to a level such that it
would cause the emissions to exceed the OBD threshold or if the frequency exceeds the
design requirements.
The number of completed regenerations during a defined time period is counted. If the number
of regenerations are above threshold at the end of the time period fault is reported.
Conditions for diagnostic trouble code (DTC):
1) Regeneration successful but too frequent
Observable symptoms
1) DPF Regeneration too frequent
Probable cause
1) Aftertreatment DPF Differential Pressure Sensor
2) EGR System
3) Aftertreatment diesel particulate filter (DPF) is damaged, soot loaded or missing
4) Excessive ash in DPF.

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P249F00
PID: EMS
SPN: N/A
FMI: N/A

Description: Excessive Time To Enter Closed Loop DPF Regeneration Coil
Troubleshooting:
This diagnostic function monitors the systems ability to maintain and regulate the DPF
temperatures within acceptable limits based on current conditions like normal operation or
during regenerations.
Conditions for diagnostic trouble code (DTC):
1) Placeholder regeneration target temperature cannot be reached
Observable symptoms
1) Regeneration not possible
Probable cause
1) Charge air system
2) Exhaust system
3) Aftertreatment fuel system

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P24F812
PID: EMS
SPN: N/A
FMI: N/A

Description: Exhaust Aftertreatment Fuel Air Purge Valve Control Circuit
Troubleshooting:
The Aftertreatment Hydrocarbon Dosing Module contains three non serviceable valves, the
Aftertreatment Fuel Shutoff Valve, Aftertreatment Purge Air Valve and Aftertreatment
Hydrocarbon Dosing Valve, and a serviceable Aftertreatment Fuel Pressure Sensor.
During Air Purge operation the Engine Control Module (ECM) sends a voltage signal to activate
the Aftertreatment Purge Air Valve open. This allows air pressure to flow into the Aftertreament
Hydrocarbon Dosing Module. The ECM then sends a PWM signal to the Aftertreatment
Hydrocarbon Dosing Valve that allows purge air pressure to be monitored by a signal from the
Aftertreatment Fuel Pressure Sensor to the ECM.
Conditions for diagnostic trouble code (DTC):
1) Voltage above normal or shorted high
Diagnostic operating conditions
1) Output activated
Observable symptoms
1) Regeneration not possible
Probable cause
1) Connector
2) Engine wiring harness
3) Aftertreatment Hydrocarbon Dosing Module
4) Engine Control Module (ECM).

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P225111
PID: EMS
SPN: N/A
FMI: N/A
Description: O2 Sensor Negative Current Control Bank 1 Sensor 1
Troubleshooting:
Conditions for diagnostic trouble code (DTC):
1) The voltage at pin A14. EA:18 is below normal value
Probable cause
1) Wiring harness
2) Lambda sensor
3) Engine Control Module

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P225F00
PID: EMS
SPN: N/A
FMI: N/A

Description: ISO/SAE Reserved
Troubleshooting:
Diagnostic Trouble Code (DTC):
ISO/SAE Reserved
Code Description
Component or System: NOx Sensor No. 2
Monitor Strategy: NOx Sensor Removed
Fault Limit:
Upstream Sensor Lambda value More Than 12
Number of sub evaluations to report monitor 4
Fault Ratio 100% (all 4 evaluations more than threshold)
Enable Criteria:
More Than 1000 RPM – Engine Speed
More Than 1100 N.m – Engine Torque
Disable Criteria:
Active Fault Codes Are Not Present: P2200, P225E, P2203, P220B, U029D, U029E, P221A,
P220A
Time Taken in Storing Fault Code: 25 Seconds
Activation of MIL: 2 drive cycles.

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P226D00
PID: EMS
SPN: N/A
FMI: N/A

Description: Particulate Filter Deteriorated/Missing Substrate Bank 1
Troubleshooting:
The function identifies and indicates malfunction of the aftertreatment diesel particulate filter
(DPF) by analyzing the pressure drop over the aftertreatment DPF. This is done by making a
check for deviation between sensor value and a model pressure drop. In some extreme cases
the engine will derate.
Conditions for diagnostic trouble code (DTC):
1) Exhaust Aftertreatment System temperature out of range
Probable cause
1) Wiring harness
2) Exhaust leakage
3) Exhaust Gas Temperature (EGT) Sensor
4) Diesel particulate filter (DPF) 

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P229F64
PID: EMS
SPN: N/A
FMI: N/A

Description: NOx Sensor Gas Outlet Removed
Troubleshooting:
The NOx sensor measures the amount of NOx in the exhaust system. The NOx sensor is
connected in the J2284/ISO data link. This diagnostic trouble code (DTC) indicates a NOx
monitoring failure. For example; NOx sensor short- or open circuit, NOx sensor removed, NOx
sensor missing signal.
Conditions for diagnostic trouble code (DTC):
1) Abnormal sensor signal
Observable symptoms
1) None
Probable cause
1) Sensor not mounted in exhaust stream
2) Charge air system leakage
3) Exhaust system leakage
4) NOx sensor
Detailed information
1) The component is not activated only when the ignition is in the ON position, or by starting
the engine

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P215A62
PID: EMS
SPN: N/A
FMI: N/A
Description: Vehicle Speed – Wheel Speed Correlation
Troubleshooting:
This signal is sent from the (VECU) Vehicle Electronic Control Unit to the Cluster to present the
actual vehicle speed. It is also used by the maximum speed limitation. The maximum speed
limit can vary depending on customer option.
Conditions for diagnostic trouble code (DTC):
1) The speed signal from the tachograph is updated incorrectly
Probable cause
1) Wiring harness
2) Data link
3) Tachograph
4) Faulty Calibration Numbers

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P200013
PID: EMS
SPN: N/A
FMI: N/A

Description: NOx Sensor Bank 1 Sensor 1
Troubleshooting:
The NOx sensor measures the amount of NOx in the exhaust system. The NOx sensor is
connected in the J2284/ISO data link. This diagnostic trouble code (DTC) indicates a NOx
monitoring failure. For example; NOx sensor short- or open circuit, NOx sensor removed, NOx
sensor missing signal.
Conditions for diagnostic trouble code (DTC):
1) Current below normal or open circuit
2) Ignition key in drive position
Probable cause
1) NOx sensor
2) Wires between NOx module and NOx sensor
Detailed information
1) Incorrect sensor value

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P200E93
PID: EMS
SPN: N/A
FMI: N/A

Description: NOx Sensor Heater Control Circuit Range/Performance (Bank 1 Sensor 1)
Troubleshooting:
The NOx sensor measures the amount of NOx in the exhaust system. The NOx sensor is
connected in the J2284/ISO data link. This diagnostic trouble code (DTC) indicates a NOx
monitoring failure. For example; NOx sensor short- or open circuit, NOx sensor removed, NOx
sensor missing signal.
Conditions for diagnostic trouble code (DTC):
1) Calibration value out of range
2) Internal NOx sensor heating failure
Observable symptoms
1) None
Probable cause
1) NOx sensor

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P222764
PID: EMS
SPN: N/A
FMI: N/A

Description: Barometric Pressure Sensor “A” Circuit Range/Performance
Troubleshooting:
The Ambient Pressure Sensor is located inside the Engine Control Module (ECM) and can
therefore not be checked.
The signal is used to calculate intake manifold pressure (IMP) as well as to compensate for
fuel when driving at high altitudes.
The engine control module (ECM) will set a diagnostic trouble code (DTC) if the sensor signal
is not within predetermined limits, or the signal is not rational.
Conditions for diagnostic trouble code (DTC):
1) Irrational pressure
Probable cause
1) Barometric Pressure (BARO) Sensor
2) If the sensor is blocked by e.g. dirt, paint or stickers it may send an incorrect value
Detailed information
1) The sensor is located in the engine control module (ECM) and therefore cannot be checked
2) The signal is used to calculate intake manifold pressure (IMP) as well as to control fuel
compensation when driving at high altitudes
3) Irrational pressure compared to crankcase pressure (CCP) and intake manifold pressure
(IMP) 

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P208E00
PID: EMS
SPN: N/A
FMI: N/A
Description: Aftertreatment Reagent Dosing Valve Clogged
Troubleshooting:
Conditions for diagnostic trouble code (DTC):
1) Active DTCs in EATS System
2) Other DTCs detected may be the reason for the selected DTC to be set. The
recommendation is to fault trace and repair the other DTCs first. Repairing the other detected
DTCs may change selected DTC to inactive.
Action
1) Aftertreatment Control Module (ACM)
2) Fault trace active diagnostic trouble codes (DTCs) on above components 

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P20CF7A
PID: EMS
SPN: N/A
FMI: N/A

Description: Exhaust Aftertreatment Fuel Injector “A” Stuck Open
Troubleshooting:
The Aftertreatment Hydrocarbon Dosing Module contains three non serviceable valves, the
Aftertreatment Fuel Shutoff Valve, Aftertreatment Purge Air Valve and Aftertreatment
Hydrocarbon Dosing Valve, and a serviceable Aftertreatment Fuel Pressure Sensor.
During DPF regeneration the Engine Control Module (ECM) sends a voltage signal to activate
the Aftertreatment Fuel Shutoff Valve to the open position. This allows fuel to flow into the
Aftertreament Hydrocarbon Dosing Module. The Aftertreatment Fuel Pressure Sensor monitors
the fuel pressure value and sends a reference signal to the ECM. The ECM then sends a PWM
signal to the Aftertreatment Hydrocarbon Dosing Valve that regulates the amount of fuel
delivered to the Aftertreatment Hydrocarbon Doser through the air/fuel line.
During Air Purge operation the Engine Control Module (ECM) sends a voltage signal to activate
the Aftertreatment Purge Air Valve open. This allows air pressure to flow into the Aftertreament
Hydrocarbon Dosing Module. The ECM then sends a PWM signal to the Aftertreatment
Hydrocarbon Dosing Valve that allows purge air pressure to be monitored by a signal from the
Aftertreatment Fuel Pressure Sensor to the ECM.
Conditions for diagnostic trouble code (DTC):
1) Aftertreatment Fuel Pressure, not within expected range
2) Fuel leakage
Observable symptoms
1) Regeneration not possible
Probable cause
1) Aftertreatment Hydrocarbon Dosing Module 

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P20DC00
PID: EMS
SPN: N/A
FMI: N/A

Description: Exhaust Aftertreatment Fuel Supply Control
Troubleshooting:
The Aftertreatment Hydrocarbon Dosing Module contains three non serviceable valves, the
Aftertreatment Fuel Shutoff Valve, Aftertreatment Purge Air Valve and Aftertreatment
Hydrocarbon Dosing Valve, and a serviceable Aftertreatment Fuel Pressure Sensor.
During DPF regeneration the Engine Control Module (ECM) sends a voltage signal to activate
the Aftertreatment Fuel Shutoff Valve to the open position. This allows fuel to flow into the
Aftertreament Hydrocarbon Dosing Module. The Aftertreatment Fuel Pressure Sensor monitors
the fuel pressure value and sends a reference signal to the ECM. The ECM then sends a PWM
signal to the Aftertreatment Hydrocarbon Dosing Valve that regulates the amount of fuel
delivered to the Aftertreatment Hydrocarbon Doser through the air/fuel line.
During Air Purge operation the Engine Control Module (ECM) sends a voltage signal to activate
the Aftertreatment Purge Air Valve open. This allows air pressure to flow into the Aftertreament
Hydrocarbon Dosing Module. The ECM then sends a PWM signal to the Aftertreatment
Hydrocarbon Dosing Valve that allows purge air pressure to be monitored by a signal from the
Aftertreatment Fuel Pressure Sensor to the ECM.
Conditions for diagnostic trouble code (DTC):
1) Aftertreatment Fuel Pressure, not within expected range
2) Fuel pressure fault
Observable symptoms
1) Regeneration not possible
Probable cause
1) Fuel pressure
2) Fuel line(s)
3) Aftertreatment Hydrocarbon Dosing Module

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P20EE00
PID: EMS
SPN: N/A
FMI: N/A

Description: SCR NOx Catalyst Efficiency Below Threshold (Bank 1)
Troubleshooting:
When the aftertreatment selective catalytic reduction (SCR) system operates under normal
conditions, the aftertreatment control module (ACM) monitors diesel exhaust fluid (DEF) dosing
valve duty cycle and DEF pump control value. When the DEF dosing valve duty cycle
increases above allowed threshold and the DEF pump control value decreases below expected
threshold, the ACM stops DEF dosing and reports a fault. The fault might be indication of
electrical failure or blockage in DEF dosing valve or DEF supply line from the DEF tank.
Conditions for diagnostic trouble code (DTC):
1) Reduced NOx conversion
Observable symptoms
1) Too high NOx emissions
2) Engine de-rated
Probable cause
1) Clogged muffler
2) DEF Dosing
3) DEF concentration 

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P117700
PID: EMS
SPN: N/A
FMI: N/A
Description: Starter Motor Deactivated – Transmission Not in Nuetral
Troubleshooting:
The (VECU) Vehicle Electronic Control Unit supplies and monitors the cranking signal to the
starter motor relay. Several types of starter cranking protection are provided so the starter
cannot be engaged in unwanted conditions. The starter cranking protection will also limit the
maximum cranking time to 18 seconds without cycling the key.
Conditions for diagnostic trouble code (DTC):
1) Transmission is not in neutral position
2) Gear selector not in neutral
3) Only for automatic transmission
Observable symptoms
1) Not possible to activate the starter motor
Probable cause
1) Transmission
2) Gear selector
Detailed information
1) Put the gear selector in neutral position and try to start again
2) When the vehicle is equipped with manual transmission the parameter code BZN in ECM
should be set to 0
3) Transmission is not in neutral position

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P117C00
PID: EMS
SPN: N/A
FMI: N/A

Description: Driver Requested Range Gear Too Low
Troubleshooting:
Conditions for diagnostic trouble code (DTC):
1) Driver Requested Range Gear Too High
Probable cause
1) Driver fault: The driver did not respect the conditions between vehicle speed, engine speed
and gear selection (selected gear is too high/low)
Action
1) No fault tracing is required
2) Check that the conditions for the DTC no longer exist
3) Do not clear any DTCs until all fault tracing in the vehicle is completed 

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P119E13
PID: EMS
SPN: N/A
FMI: N/A

Description: Volvo Compression Brake (VCB) Control Highside Circuit
Troubleshooting:
The Engine Compression Brake Relay is supplied battery voltage through a fuse when the
Engine Control Module (ECM) Relay is energized.
The Engine Control Module (ECM) grounds and completes the circuit for the Engine
Compression Brake Relay to activate the compression brake.
Conditions for diagnostic trouble code (DTC):
1) Short circuit to battery voltage on A14.EB:30
Diagnostic operating conditions
1) Ignition key in ON position
Observable symptoms
1) Reduced engine braking since the compression brake cannot be activated
2) Reduced gear selection performance for some automatic transmissions
Probable cause
1) Connector
2) Short circuit in the compression brake solenoid valve
3) Wiring harness
4) Engine control module (ECM)

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P204C00

PID: EMS
SPN: N/A
FMI: N/A

Description: Aftertreatment Reagent Pressure Sensor Circuit Low
Troubleshooting:
Conditions for diagnostic trouble code (DTC):
1) Active DTCs in EATS System
2) Other DTCs detected may be the reason for the selected DTC to be set. The
recommendation is to fault trace and repair the other DTCs first. Repairing the other detected
DTCs may change selected DTC to inactive.
Action
1) Aftertreatment Control Module (ACM)
2) Fault trace active diagnostic trouble codes (DTCs) on above components 

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P114213
PID: EMS
SPN: N/A
FMI: N/A
Description: Fan Thermal Switch
Troubleshooting:
Conditions for diagnostic trouble code (DTC):
1) Open circuit
Observable symptoms
1) The engine cooling fan noise is unusually high
2) Poor cooling
Probable cause
1) Wiring harness
2) Connector
3) Solenoid valve, engine fan

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P114800
PID: EMS
SPN: N/A
FMI: N/A

Description: Lost Communication With ECM According To Turbocharger/Supercharger Control
Module “A”
Troubleshooting:
The (VGT) Variable Geometry Turbocharger Actuator is a self-contained component with
motors, sensors and a control unit.
The (VGT) Variable Geometry Turbocharger uses a movable nozzle to adjust the intake
manifold pressure for various operating conditions. Nozzle movement is controlled by an
actuator mounted on the tubocharger. When the Engine Control Module (ECM) Relay is
energized, a fuse supplies battery voltage to the (VGT) Variable Geometry Turbocharger and
the unit is grounded by means of the engine block.
Conditions for diagnostic trouble code (DTC):
1) Actuator command missing, message from engine control module (ECM) not available for 75
milliseconds or more
Observable symptoms
1) Low Power
Probable cause
1) CAN7 Data link failure
2) Loss of voltage or ground connection to the actuator
3) Actuator
4) Engine control module (ECM)
Detailed information
1) The nozzle goes to 100% position (open), resulting in low intake manifold pressure and low
power

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P115212
PID: EMS
SPN: N/A
FMI: N/A

Description: Fuel Priming Pump
Troubleshooting:
Conditions for diagnostic trouble code (DTC):
1) The amperage at pin A14.EA:3 is more than 10.8 A
Diagnostic operating conditions
1) Ignition key in ON position
Observable symptoms
1) It is not possible to vent the fuel system or drain water from the fuel system
Probable cause
1) Connector
2) Wiring harness

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P117312
PID: EMS
SPN: N/A
FMI: N/A

Description: Transmission Low Range Authorization Valve
Troubleshooting:
Conditions for diagnostic trouble code (DTC):
1) Short circuit to battery voltage on A14.EB:34
Diagnostic operating conditions
1) Ignition key in ON position
Probable cause
1) Transmission Low Range Authorization Valve
2) Short circuit to voltage supply, control wire
3) Connector
4) Wiring harness
5) Engine control module (ECM)

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P112500
PID: EMS
SPN: N/A
FMI: N/A
Description: Engine Oil Temperature Moderately High
Troubleshooting:
The Engine Oil Level/Temperature Sensor contains two thermistors, one for engine oil
temperature and one for engine oil level. The resistance of the engine oil temperature portion
of the sensor changes inversely to the temperature of the engine oil. When the engine oil is
cold, the sensor resistance is high. As the temperature of the engine oil increases, the sensor
resistance decreases.
The Engine Control Module (ECM) monitors the voltage drop across the sensor and uses this
signal to warn the driver and derate the engine to avoid engine damage if the signal is not
within programmed limits.
Conditions for diagnostic trouble code (DTC):
1) Temperature too high
Observable symptoms
1) Info lamp lights up if the temperature is moderately above range
2) Red lamp lights up if the temperature is critically above range
3) A buzzer sounds if the temperature is critically above range
4) Engine de-rated
Probable cause
1) Extreme driving conditions
2) Clogged oil cooler
3) Cooling System
4) Thermostat
5) Engine oil level (EOL) and temperature sensor
6) Engine cooling fan

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P113600
PID: EMS
SPN: N/A
FMI: N/A

Description: Nox Sensor 1/2 Correlation Calibration Error Bank 1
Troubleshooting:
The NOx sensor measures the amount of NOx in the exhaust system. The NOx sensor is
connected in the J2284/ISO data link. This diagnostic trouble code (DTC) indicates a NOx
monitoring failure. For example; NOx sensor short- or open circuit, NOx sensor removed, NOx
sensor missing signal.
Conditions for diagnostic trouble code (DTC):
1) Inlet/outlet, high/low range
2) The values do not agree
Observable symptoms
1) None
Probable cause
1) NOx sensor
2) Software

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P113E11
PID: EMS
SPN: N/A
FMI: N/A

Description: Turbo Compound Buffer Air Valve Control
Troubleshooting:
Conditions for diagnostic trouble code (DTC):
1) Circuit Short To Battery
Diagnostic operating conditions
1) Ignition key in ON position
Probable cause
1) Connector
2) Wiring harness
3) Turbo Compound Buffer Air Valve Control
4) Engine control module (ECM)

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P114000
PID: EMS
SPN: N/A
FMI: N/A

Description: Volvo Compression Brake (VCB) Control Oil Temperature Too Low
Troubleshooting:
Conditions for diagnostic trouble code (DTC):
1) The oil temperature is below 55 °C (131 °F)
2) Compression brake activated
Observable symptoms
1) Auxiliary brakes, poor performance
Probable cause
1) Engine oil temperature (EOT) too low 

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P10FF86
PID: EMS
SPN: N/A
FMI: N/A
Description: Reductant Level Sensor “A” Circuit Electrical
Troubleshooting:
Aftertreatment Diesel Exhaust Fluid (DEF) Tank, Level Sensor has an indicator lamp and
gauge in the instrument cluster. A solid lamp comes on when there is approximately 16% DEF
remaining in the tank. A flashing lamp indicates when there is approximately 4% DEF
remaining in the tank. A 25% engine derate is possible if the DEF is not refilled above the red
line on the gauge at the next engine start up.
Conditions for diagnostic trouble code (DTC):
1) Low fluid level in the tank (Approximately 16%)
2) Low signal voltage from sensor
Probable cause
1) Low fluid level in the tank
2) Wiring harness
3) Aftertreatment diesel exhaust fluid (DEF) tank, Level Sensor, Temperature Sensor

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P110511
PID: EMS
SPN: N/A
FMI: N/A

Description: Engine Rear Start Switch “A” Circuit
Troubleshooting:
Conditions for diagnostic trouble code (DTC):
1) The function is monitored by the diagnostic system when the vehicle is being driven
2) Electronic control unit (ECU) connector A14.EA:55 monitors the function
Observable symptoms
1) Engine Rear Start Switch “A” Circuit is not activated when requested
Probable cause
1) Connector
2) Wiring harness
3) Engine Rear Start Switch

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P110F90
PID: EMS
SPN: N/A
FMI: N/A

Make: Volvo
Engine: All Engines (2017 Emissions)
PID: EMS
SPN: N/A
FMI: N/A
Description: Engine Stop Switch Stuck
Troubleshooting:
Conditions for diagnostic trouble code (DTC):
1) The function is monitored by the diagnostic system when the vehicle is being driven
2) Electronic control unit (ECU) connector A14.EA:27 monitors the function
Observable symptoms
1) The stop switch does not work
2) Probable cause
3) Connector
4) Engine stop switch
5) Open circuit electric cables

Make: Volvo
Engine: All Engines (2017 Emissions)

Fauld Code: P111800
PID: EMS
SPN: N/A
FMI: N/A

Description: Manifold Absolute Pressure Too High
Troubleshooting:
The Boost Air Pressure Sensor is used to monitor the pressure of the air in the intake system
after the turbocharger. The sensor consists of a pressure sensitive diaphragm/amplifier sensor.
Air pressure causes the sensors diaphragm to deflect and produce an electrical signal
proportional to the pressure. The diaphragm deflection signal is amplified in the sensor.
The sensor signals are used to calculation fuel injection and is monitored by the Engine Control
Module (ECM).
The engine control module (ECM) will set a diagnostic trouble code (DTC) and derate the
engine to avoid engine damage if the sensor signal is not within predetermined limits, or the
signal is not rational.
Conditions for diagnostic trouble code (DTC):
1) Charge pressure High
Observable symptoms
1) Engine derate according to error torque map
Probable cause
1) Actuator
2) Intake manifold air temperature (IMAT) and pressure sensor
3) By-pass shutter