CCU 000100.01 – Engine Oil Pressure Signal Extremely Low

CCU 000100.01 (CCU 100.01)

Code: 000100.01

Shortcode: 100.01


This fault code indicates that the Chassis Control Unit (CCU) has detected an extremely low signal from the engine oil pressure sensor. This condition suggests that the engine oil pressure is critically low, which can lead to severe engine damage if not addressed immediately.


The engine’s functionality is severely limited to prevent potential damage due to insufficient oil pressure.


  • Check Engine Oil Level:
    • Verify that the engine oil level is within the recommended range. Add oil if the level is low.
  • Inspect Oil Pressure Sensor:
    • Check the oil pressure sensor for proper operation. Ensure it is not damaged or malfunctioning.
  • Inspect Wiring and Connections:
    • Examine the wiring and connections associated with the oil pressure sensor for damage or disconnections. Repair or replace as necessary.
  • Test Oil Pump:
    • Ensure the engine oil pump is functioning correctly and providing adequate pressure. Replace the pump if it is found to be faulty.
  • Monitor System:
    • After addressing any issues, reset the CCU and monitor the engine oil pressure to ensure it remains within the normal range.


Maintaining proper engine oil pressure is crucial for engine health. Regularly checking oil levels and sensor functionality can prevent severe engine damage.

Control Units: John Deere

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