This instruction show you guide on how to solve AGCO machine trouble code SPN 110 coolant temperature high alarm.The measured coolant temperature exceeds the overheating alarm limit.
Related Contents:
AGCO 2×4 CANUSB Interface Diagnostics
2026 AGCO EDT Electronic Diagnostic Tool
Failure Mode Indicator
FMI 00 – Above normal operational range – most severe.
Failure Mode
Fault code is stored and warning lamp is activated. The engine will stop after 30 seconds. CAN message indicates, that shutdown is pending.
Possible Cause
- The fan belt is slipping or the belt is broken
- Cooling system is not completely filled
- Water pump is defective
- Cooling system is clogged
- Thermostat is defective or removed (double acting thermostat)
- Thermostat is upside down.
- Radiator filler cap is not pressure tight
- Engine is overloaded
- Coolant temperature sensor wiring is defective
- Coolant temperature sensor is defective
- Control unit is defective
Diagnosis and Solution
Find cause for the overheating indication:
- Check the fan belt and the belt tension.
- Check the coolant level.
- Check condition of the radiator.
- Check the mechanical condition of the engine.
- Check the coolant temperature sensor wiring, connectors and contact surfaces of the connector pins (possible oxidation).
Coolant Temperature Sensor
Check the coolant temperature sensor operation.
Coolant Temperature Sensor
Check the ECU operation with another EEM3 controller. If the system is functional and the fault is not active with the replacement ECU, then the original ECU is defective.
ECU Replacement
