- DOWNLOAD Bobcat Service Library [03.2019] Service, Operator, Maintenance, Bulletines, etc full update
$100.00Add to cart
- DOWNLOAD Detroit Diesel DDDL CutOut Calculator v0.1+Tutorials
$15.00Add to cart
- DOWNLOAD Cat Factory Password Generator 1.0 2019 WINDOWS 10
$56.00Add to cart
- Description
- Tags
- Reviews (0)
Description
Circuit Description
The engine control module (ECM) monitors the NOx concentration in the engine’s exhaust gases using an aftertreatment intake NOx sensor and an aftertreatment outlet NOx sensor. By comparing these two values, the ECM is able to determine the conversion efficiency of the SCR catalyst and dosing system.
Component Location
The SCR catalyst is located in the vehicle’s exhaust system, after the diesel particulate filter and decomposition tube.
Conditions for Running the Diagnostics
This diagnostic has to meet specific engine and aftertreatment conditions to run and complete.
Conditions for Setting the Fault Codes
The Engine Control Module (ECM) detected the NOx conversion efficiency of the SCR catalyst was critically low.
Action Taken When the Fault Code is Active
The ECM illuminates the amber CHECK ENGINE lamp and/or Malfunction Indicator Lamp (MIL) after the diagnostic fails on two consecutive trips.
Diesel exhaust fluid injection into the aftertreatment system is disabled.
Engine torque will be reduced if the engine is operated for an extended period of time with this fault active.
Engine torque will be severely reduced.
Vehicle speed will be limited to 8 km [5 mi] per hour after extended engine operation with the fault code active.
Conditions for Clearing the Fault Code
After completing a stationary regeneration (as instructed in this fault code troubleshooting tree) and no additional faults become active, the repair has been validated.
It is necessary to use the “Reset All Faults” command in INSITE? electronic service tool to clear this fault and extinguish the amber CHECK ENGINE lamp and/or Malfunction Indicator Lamp (MIL).
Shop Talk
Troubleshoot all other active NOx sensor and SCR dosing system related fault codes before this fault.
Possible causes of this fault include:
Incorrect calibration revision on INCAL? CD
Tampering with SCR catalyst system, removal of SCR catalyst from vehicle, or malfunctioning SCR catalyst
Malfunctioning diesel exhaust fluid dosing system
Exhaust system leaks
Degraded, diluted, or incorrect diesel exhaust fluid
Diesel exhaust fluid deposits in the decomposition tube.
For unit that has come back into with repeat failures consider the possibility that customer is not using Ultra-low sulfur Diesel fuel
This fault code can be set as a result of multiple failure modes. All steps of the troubleshooting tree must be completed.
Reference the appropriate OEM wiring diagram when troubleshooting circuits that utilize wiring supplied by the OEM.
For intermittent power supply and datalink communication issues with Aftertreatment Components, it is highly recommended that the OEM Power Distribution Center fuses and relays be thoroughly checked for loose, missing or intermittent connections.
Possible Cause:
1) N/A
Related
Tags: 1, 2010-12, 31, 3151, 4794, Aftertreatment, Catalyst, CM2250, Code, Condition, Cummins, Exists, Fault, FMI, ISX11.9, Missing-, PID, SCR, SPN, System
Reviews
There are no reviews yet.
Be the first to review “Cummins ISX11.9 CM2250 (2010-12) Fault Code: 3151 PID: SPN: 4794 FMI: 31 Aftertreatment 1 SCR Catalyst System Missing- Condition Exists”
Categories Cumminz, DTC TRUCKS, ISX11.9 CM2250 (2010-12)Tags 1, 2010-12, 31, 3151, 4794, Aftertreatment, Catalyst, CM2250, Code, Condition, Cummins, Exists, Fault, FMI, ISX11.9, Missing-, PID, SCR, SPN, System
- JPRO software download 2023 1.2 off-highway – on-highway
$96.00Add to cart
- DOWNLOAD 2019 VOLVOUU PROSIS Offline Parts+Repair Installation Service
$44.00Add to cart
- DOWNLOAD Detroit Diesel Diagnostic Link DDDL 6.50 ( software trucks )
$25.00Add to cart
- Related Products
Quick View
Add to wishlist
CompareAdd to cart
AllisonDTC TRUCKS
Quick View
Add to wishlist
CompareAdd to cart
AllisonDTC TRUCKS
Quick View
Add to wishlist
CompareAdd to cart
Quick View
Add to wishlist
CompareAdd to cart
AllisonDTC TRUCKS
Quick View
Add to wishlist
CompareAdd to cart
AllisonDTC TRUCKS
JPRO
DOWNLOAD Noregon JPRO Commercial Fleet Diagnostics 2017 v3 (Copy)$40.00Add to cart
cummisznn
Cumminmms Insite pro 8.9 Diagnostic Software$80.00Add to cart
Trucks software
JPRO Diagnostic Software Download 2024$100.00Add to cart
Trucks software
AGCO EDT 2023.10 Electronic Diagnostic Tool 1.125$120.00Add to cart
Trucks software
DOOSAN diagnostic software DMS-5 3.1.3 [2023.11] 1PC$106.00Add to cart
Trucks software
Bendix Acom Pro 2023 V1 diagnostic software 1PC$83.00Add to cart
Trucks software
VOLVOUU PTT TECH TOOL 2.8.220 2023 Last version 1pc$200.00Add to cart
Trucks software
Download Allison Doc Premium Update 2023 v2$105.00Add to cart
Trucks software
Allison doc premium update 2023 v1 Diagnostic Software Download$96.00Add to cart
DEUTZ
MANUAL SERVICE DEUTZ AGROTRON TTV 1130-1145-1160$45.00Add to cart
Allison
SERVICE MANUAL 5000, 6000, 8000, 9000 SeriesOff-Highway Transmissions Commercial Electronic Controls 2 (CEC2) TS3353EN Troubleshooting Manual PDF.pdf$45.00Add to cart
BOBCAT
SERVICE MANUAL BOBCAT 440-443-443b sms$45.00Add to cart
BOBCAT
SERVICE MANUAL BOBCAT 641-642-643 sms$45.00Add to cart
PACCAR
DOWNLOAD PACCAR Engine Analyzer v1.3.0.6$55.00Add to cart
INTERNATIONAL ENGINES
$45.00Add to cart
Allison
SERVICE MANUAL 3000 AND 4000 SERIES GEN 4 GENERATION – ALLISON$45.00Add to cart