1312
UnclassifiedCooling
What This Code Means
Engine has overheated; Intake manifold temperature has risen above the shutdown trip point; Derate lamp active; High Intake Manf 1 temp message displayed; Engine hot shutdown has occurred; Cooldown timers were bypassed; Warning lamp active; Engine Hot Shut Down message displayed; Communication between the engine control (ECM) and the PowerCommand 3.3 control has been severed; Shutdown lamp active; CAN Data Link Failure message displayed; Control is in Battle Short mode; Battle Short Active message displayed; Triggered configurable customer input alarm (e.g., Low Fuel Day Tank, Water In Fuel, Ground Fault)
Possible Causes
- •Large load
- •High ambient temperature
- •Operator pressed the Emergency Switch before the generator set completed the cooldown operation
- •Operator pressed the Stop button before the generator set completed the cooldown operation
- •Active E-Stop button
- •Battle Short mode manual activation to bypass fault shutdowns during emergencies
- •Configurable input condition met
Suggested Actions
- 1Review fault code 151 correction list for other possible causes
- 2Contact authorized service technician if in doubt
- 3Run the generator set at 10% or less load for three minutes before engine shutdown to avoid hot shutdowns
- 4Ensure the E-Stop button is not active
- 5Reset the Local/Remote Emergency Stop
- 6If possible, investigate any fault codes that are being bypassed
- 7Allow the engine to cool down completely before proceeding (if the engine can be stopped)
- 8Check the Input requirement details and correct the condition
- 9Program input functions using the InPower service tool or by accessing the Setup menu
ASK RUDY ABOUT THIS FAULT
Get a diagnosis walkthrough for 1312 on your specific Cummins unit — cited to the OEM manual, not a forum guess.
TRY IT FREE