John Deere CCU000107.03 – CCU: Engine Air Filter Restriction Sensor Voltage Problem

The Chassis Control Unit (CCU) has detected that the voltage signal from the engine air filter restriction sensor is higher than the expected normal range (SPN 107, FMI 3). This voltage issue may affect the proper operation of the sensor and the engine's performance, indicating either a restricted air filter, a faulty sensor, or a short circuit in the wiring harness.

• 7630
• 7730
• 7830
• 7930
• 8100T
• 8200T
• 8300T
• 8400T
• 8230T
• 8330T
• 8430T
• 9230
• 9330
• 9430
• 9530
• 9630
• 9470RT
• 9520RT
• 9570RT
• 7810

1. 1

   Inspect primary and secondary engine air filters for dirt or clogs

2. 2

   Restart the tractor to rule out a temporary communication glitch

3. 3

   Visually inspect the wiring harness and connector leading to the air filter restriction sensor for damage, corrosion, or loose connections

4. 4

   Perform a basic electrical check by unplugging the connector from the air restriction sensor. If the warning light goes out, the sensor is likely faulty. If the light remains on, suspect a short in the wiring between the sensor and the control unit

1. 1

   Service air filters

   Clean or replace the primary and secondary engine air filters according to the manufacturer's procedure. Do not wash or use compressed air on certain types of filter elements.

2. 2

   Reset and observe

   After servicing the filters, reset the indicator if it is a mechanical type and restart the machine to see if the fault code clears.

3. 3

   Perform professional electrical diagnosis

   If the code persists after filter replacement and a restart, the issue is likely electrical. Have a qualified technician use John Deere's Service ADVISOR software to perform specific electrical tests on the sensor circuit (e.g., Reference 245-CCU-012R, Engine Air Filter Restriction Sensor Test) to pinpoint the failure.

4. 4

   Replace sensor

   If the sensor is determined to be the cause of the high voltage fault, replace the engine air filter restriction sensor.