CEM-5F41

Condition
If the overheat thermostat trips, the control unit will interpret this as a fault and diagnostic trouble code CEM-5F41 will be set.

Condition
- None.

Possible source
- Air in the cooling system.
- Cooling system blocked.
- Defective overheat thermostat.
- Defective water temperature sensor.

Condition
- Poor interior heating.