John Deere 000107.04 – CCU: Engine Air Filter Restriction Sensor Circuit Voltage Low

The Central Control Unit (CCU) has detected that the voltage signal from the engine air filter restriction sensor is outside of its expected range, indicating a potential open or short circuit. This sensor monitors the vacuum in the engine's air intake system to detect clogged filters. This voltage issue may affect the proper operation of the sensor and negatively impact the engine's performance.

• 7630
• 7730
• 7830
• 7930
• 9230
• 9330
• 9430
• 9530
• 9630
• 9410R
• 9460R
• 9460RT
• 9510R
• 9510RT
• 9560R
• 9560RT
• 370E
• 410E
• 460E

1. 1

   Inspect the primary and secondary air filters for dirt or clogs (most common cause)

2. 2

   Check for blockages in the air intake system ahead of the air filter housing

3. 3

   Disconnect the air filter restriction sensor electrical connector to see if the fault code clears (indicating a faulty sensor)

4. 4

   Visually inspect the sensor wiring harness for chafing, breaks, or corrosion on the connector pins

1. 1

   Park machine safely

   Lower all implements to the ground, engage the parking brake, shut down the engine, and remove the key.

2. 2

   Clean or replace air filters

   Open the air filter housing and remove the primary element. Clean it with compressed air or replace it if damaged or cleaned multiple times. Inspect the secondary (safety) element and replace it if dirty (do not clean it). Clean the inside of the housing with a damp cloth before reinstalling.

3. 3

   Reset indicator

   If your model is equipped with a manual reset button on the air restriction indicator, press it to reset the indicator after servicing the filters.

4. 4

   Test and replace sensor

   If the fault persists after servicing the filters, disconnect the sensor's electrical connector. If the fault code disappears, the sensor is likely shorted or malfunctioning and requires replacement.

5. 5

   Diagnose wiring harness

   If the fault code remains active after disconnecting the sensor, there is likely a short in the wiring harness between the sensor and the control unit. Use a multimeter to check for continuity and shorts to ground. Due to the complexity of this step, consulting a John Deere service manual or a qualified technician is highly recommended.

6. 6

   Restart and verify

   After completing the repairs, restart the tractor to verify that the diagnostic trouble code does not reappear.