This instruction show you guide on how to solve JCB stageV engine fault code K5147 ECU over temperature high alarm.
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Description
The EEM4 monitoring system has detected a too high internal ECU temperature. Reason could be example, when the overheating has stopped the engine and the cooling system does not work anymore and temperature may rise inside the EEM4 controller, because the airflow is not cooling.
Reaction in EEM
The FC is stored and the warning lamp is activated. The CAN message indicates active fault. The engine will stop after 30 seconds, if the ECU internal temperature is continuously >114 °C.
Solution
First save the error log and then erase it. Restart the ECU after erasing the error log. If the fault occurs again during the next driving cycle, check the following paths:
Let the engine cool down and then try touching the ECU by hand. If it is still very hot and the fault code is still active, try to replace the ECU.
If there is a fault code in the fault log which indicates engine overheating, this fault code should heal after applicable time (ecu_t< 109°C).
Check the ECU operation with another EEM4 controller. If the system is functional and the fault is not active with the replacement ECU, then the original ECU is defective.
More repair case for JCB,please refer to:JCB Trouble Repair
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