Cummins fault code13774 · Aftertreatment 2 EGTS Diesel Oxidation Catalyst Intake Temperature Sensor Circuit
Aftertreatment 2 EGTS Diesel Oxidation Catalyst Intake Temperature Sensor Circuit - Root Cause Not Known
13774 Cummins fault code as shown in INSITE / CaltermSPN516224 · Aftertreatment 2 EGTS Diesel Oxidation Catalyst Intake Temperature Sensor CircuitFMI11 Root cause not knownOBD codenone (J1939 only)LampNo lampCummins textAftertreatment 2 EGTS Diesel Oxidation Catalyst Intake Temperature Sensor Circuit - Root Cause Not KnownFailure modeRoot Cause Not KnownWhat Cummins code 13774 means
The ECM knows something is wrong with Aftertreatment 2 EGTS Diesel Oxidation Catalyst Intake Temperature Sensor Circuit but cannot narrow the cause down to one of the standard failure modes. Treat the whole circuit and the component as suspect and follow the Cummins troubleshooting tree for the code.
No dash lamp is attached to this code in the Cummins fault table. It is logged in the ECM and shows up in Cummins INSITE (or any J1939 tool reading DM1 / DM2), but on its own it does not light a lamp.
On a generic J1939 scan tool, or on the dash of a Freightliner, Kenworth, Peterbilt, International or Volvo chassis, the same fault is shown as SPN 516224 FMI 11 rather than as Cummins code 13774. Cummins INSITE and Calterm show the Cummins number, the SPN / FMI pair and the lamp together.
This is an emissions-system code. If the component it refers to has been removed or unplugged (DPF, EGR, SCR / DEF or NOx sensor delete) the code will keep returning and the derate with it, however many times it is cleared, because the diagnostic is still enabled in the calibration. The lasting fix in that case is to disable the fault in the .xcal itself.
Custom DTC delete, up to 30 codes, $150. Full DPF / EGR / SCR delete with all related codes and derates, $500. Upload your Calterm .xcal, tick the services, pay with PayPal, and the finished file comes back by email and WhatsApp.
Upload your .xcal →Cummins ECFG / E2M definitions for CM550, CM552, CM554, CM570, CM800, CM850, CM870, CM871 and more: the fault table, torque, fuelling, boost, EGR, DPF and SCR maps, ready for Calterm or WinOLS. Instant download.
Find your ECFG →Other Cummins codes on SPN 516224 Aftertreatment 2 EGTS Diesel Oxidation Catalyst Intake Temperature Sensor Circuit
1 other fault code share this SPN; each one is a different failure mode (FMI) of the same component.
Related Cummins fault codes
J1939 failure mode identifiers (FMI)
FMI 11 is highlighted. The FMI is the second half of every J1939 fault and tells you how the component failed; the SPN tells you which component.
| FMI | Meaning (SAE J1939-73) |
|---|---|
| 0 | Data valid but above normal operational range - most severe level |
| 1 | Data valid but below normal operational range - most severe level |
| 2 | Data erratic, intermittent or incorrect |
| 3 | Voltage above normal, or shorted to high source |
| 4 | Voltage below normal, or shorted to low source |
| 5 | Current below normal or open circuit |
| 6 | Current above normal or grounded circuit |
| 7 | Mechanical system not responding or out of adjustment |
| 8 | Abnormal frequency, pulse width or period |
| 9 | Abnormal update rate |
| 10 | Abnormal rate of change |
| 11 | Root cause not known |
| 12 | Bad intelligent device or component |
| 13 | Out of calibration |
| 14 | Special instructions |
| 15 | Data valid but above normal operating range - least severe level |
| 16 | Data valid but above normal operating range - moderately severe level |
| 17 | Data valid but below normal operating range - least severe level |
| 18 | Data valid but below normal operating range - moderately severe level |
| 19 | Received network data in error |
| 20 | Data drifted high |
| 21 | Data drifted low |
| 22 | Reserved for SAE assignment |
| 23 | Reserved for SAE assignment |
| 24 | Reserved for SAE assignment |
| 25 | Reserved for SAE assignment |
| 26 | Reserved for SAE assignment |
| 27 | Reserved for SAE assignment |
| 28 | Reserved for SAE assignment |
| 29 | Reserved for SAE assignment |
| 30 | Reserved for SAE assignment |
| 31 | Condition exists |
Questions about code 13774
What does Cummins fault code 13774 mean?
Cummins 13774 is "Aftertreatment 2 EGTS Diesel Oxidation Catalyst Intake Temperature Sensor Circuit - Root Cause Not Known". It maps to SPN 516224 FMI 11. The ECM knows something is wrong with Aftertreatment 2 EGTS Diesel Oxidation Catalyst Intake Temperature Sensor Circuit but cannot narrow the cause down to one of the standard failure modes. Treat the whole circuit and the component as suspect and follow the
Which lamp does fault code 13774 turn on?
No lamp: No dash lamp is attached to this code in the Cummins fault table. It is logged in the ECM and shows up in Cummins INSITE (or any J1939 tool reading DM1 / DM2), but on its own it does not light a lamp.
How do I clear or permanently delete Cummins code 13774?
An active code goes inactive on its own once the condition is gone; the inactive record stays in the ECM fault history until it is cleared with Cummins INSITE (or a J1939 tool that supports the DM3 / DM11 clear). If the code keeps coming back because the part is gone, disconnected or not worth repairing, the lasting fix is to disable fault 13774 in the calibration: upload your .xcal to the ECFG Superstore file service, custom DTC delete from $150 (up to 30 codes), full DPF / EGR / SCR delete $500, and flash the returned file with Calterm or INSITE.
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