JCB StageV Tier4 Air Filter Pressure Sensor Active at Init State

This instruction show you guide on how to solve JCB StageV Tier4 engine air filter pressure sensor active at init state SPN 107,FMI 31.

JCB stage V Tier 4

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The air filter pressure sensor indicates blocked filter even though engine is not running.


Possible causes are:

The air filter pressure sensor wiring is defective.

The air filter sensor is defective.


Reaction in EEM

The FC is stored and the warning lamp is activated. The CAN message indicates active fault.



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:

Check the air filter pressure sensor wiring, the connectors and the contact surfaces of the connector pins (possible oxidation).

Check the operation with another air filter pressure sensor to see if the air filter pressure sensor is defective.

More repair case for JCB,please refer to:JCB Trouble Repair

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