415
What This Code Means
Coolant level sensor signal is showing a low coolant level for greater than 10 seconds; Engine failed to start after the expiration of crank time; Engine oil pressure is below the low oil pressure shutdown threshold; Engine has begun to overheat; Engine coolant temperature has risen to an unacceptable level; Engine is operating near cooling system capacity; Engine has overheated; Coolant temperature has risen above the shutdown trip point; Coolant level is low; Low Coolant Level warning message; Low Coolant Level shutdown message; Engine coolant level has fallen below the trip point; Fail To Start shutdown message; Engine cranks but fails to start; Engine oil pressure has dropped below the shutdown trip point
Possible Causes
- •Blocked fuel lines
- •Coolant leakage
- •Dirty air filter
- •Dirty fuel filter
- •Empty fuel tank
- •FSO valve solenoids or circuit are malfunctioning
- •Fault with the control system
- •Fault with the starting system
- •Faulty blower fan or circulation pumps on remote radiator installations
- •Fuel leaks
- •Fuel system issues
- •Higher ambient temperature
- •Incorrect starter disconnect speed
- •Increase in load
- •Loose or damaged fan belt
- •Low coolant
- •Low coolant level
- •Lubricating oil level is low
- •Manual fuel shutoff (FSO) valve is closed
- •Obstructions to cooling airflow
Suggested Actions
- 1Allow the engine to cool down completely before proceeding
- 2Allow the engine to cool down completely before proceeding with checks
- 3Allow the engine to cool down completely before proceeding with checks.
- 4Check coolant level and replenish if low
- 5Check for a dirty fuel filter and replace if necessary
- 6Check for a dirty or blocked air filter and replace if necessary
- 7Check for an empty fuel tank, fuel leaks, or blocked fuel lines and correct as required
- 8Check for obstructions to cooling airflow and correct as necessary.
- 9Check the FSO valve solenoids and circuit, and correct or replace as necessary
- 10Check the blower fan and circulation pumps on remote radiator installations.
- 11Check the coolant level and replenish if low.
- 12Check the fan belt and repair or tighten if necessary.
- 13Connect to the control via the InPower service tool and make sure Starter Disconnect Speed is set to 400 RPM
- 14Inspect fuel lines and fuel connections for leaks and repair if found
- 15Look for possible coolant leakage points and repair if necessary
- 16Look for possible coolant leakage points and repair if necessary.
- 17Open the manual fuel shutoff (FSO) valve
- 18Remove radiator cap and check that coolant is up to the required level
- 19Reset the control and restart after locating and correcting the problem
- 20Review fault code 151 correction list for other possible causes.
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