Cummins fault code 611
Engine Shut Down Hot: condition exists
What it means
Cummins' description: Engine Shut Down Hot - Condition Exists.
SPN 1383 is Engine was Shut Down Hot. FMI 31 means the ECM has confirmed the condition described in the code is happening.
The cooling system keeps the engine at operating temperature. The ECM watches coolant temperature, pressure and level, and will derate or shut down the engine to protect it from overheating.
What the lamp means
This code normally doesn't turn on a dash lamp. It's logged in the ECM for a technician to see, and often explains another active code.
Green, yellow, red: three ways this can look
The same code can be a quick fix or a reason to shut down. Match your situation to the closest example.
Keep an eye on it
A coolant level warning that clears after topping off with the right coolant, and no leak shows up.
Schedule a repair
Coolant keeps dropping, the gauge runs hotter than normal, or the amber lamp is on. Find the leak before it becomes an overheat.
Stop and get help
Temperature gauge in the red, steam, a stop lamp, or engine protection derating power. Pull over and shut it down. Running hot can warp the head and ruin the engine.
Common causes
The sensor reading itself is out of range or the condition is real, so look at the system:
- Low coolant from a leak
- Radiator or charge air cooler blocked with dirt or bugs
- Fan clutch or fan not engaging
- Stuck thermostat
- Failing water pump
- Head gasket or EGR cooler pushing exhaust into the coolant
What you can check before calling
- Check the coolant level only with the engine cool
- Look for leaks, wet spots or dried coolant residue
- Clean the front of the radiator and charge air cooler
- Watch the temperature gauge and whether the fan kicks on
Clearing the code without fixing the cause usually brings it right back, and on emissions systems it can restart derate timers. For the bigger picture, read our guide: Car overheating: what to do right now, and what's causing it.
Engines and sources
Cummins uses the same fault code numbers across its electronic engines, including on-highway models like the ISB/B6.7, ISL/L9 and ISX/X15, though not every code applies to every engine or software level. Source: Cummins Tier 4 Fault Codes. Always confirm with Cummins service information (QuickServe) for your engine serial number.
Related Engine cooling codes
- 422 SPN 111 FMI 2
Coolant Level: erratic or intermittent signal - 334 SPN 110 FMI 2
Engine Coolant Temperature: erratic or intermittent signal - 235 SPN 111 FMI 1
Coolant Level: reading below normal (most severe) - 233 SPN 109 FMI 18
Coolant Pressure: reading below normal (moderately severe) - 232 SPN 109 FMI 4
Coolant Pressure Sensor Circuit: circuit voltage low / shorted low - 231 SPN 109 FMI 3
Coolant Pressure Sensor Circuit: circuit voltage high / shorted high
Look up another code
Cummins fault code (like 1922), J1939 SPN and FMI (like SPN 3251 FMI 0), or an OBD-II code (like P0420).
Questions
What does Cummins fault code 611 mean?
Cummins fault code 611 is J1939 SPN 1383 FMI 31: Engine Shut Down Hot - Condition Exists. In plain terms: engine shut down hot: condition exists.
Can I keep driving with Cummins code 611?
Usually, yes. This code doesn't normally turn on a lamp by itself, but check for other active codes that might be more serious. Look at the green, yellow and red examples on this page to judge your situation.
What is the SPN and FMI for Cummins code 611?
SPN 1383 identifies the part or system (Engine was Shut Down Hot). FMI 31 describes the type of failure: condition exists.
What usually causes Cummins code 611?
The most common causes are: low coolant from a leak; radiator or charge air cooler blocked with dirt or bugs; fan clutch or fan not engaging.
Diesel down in the Midlands?
We work on Cummins-powered pickups, vans and medium-duty trucks across Lexington, Columbia and the Midlands, on site at your yard or roadside.