Kubota P3006 – Engine ECU (KUBOTA ECU): Excessive PM3 (Tractor)

This fault code indicates that the Diesel Particulate Filter (DPF) has reached 'Particulate Matter (PM) Accumulation Level 3.' The DPF has accumulated a critical level of soot that exceeds the threshold for standard automatic regeneration. When this code is triggered, the engine control system will typically restrict engine output to 50% power (limp mode) to prevent thermal damage to the exhaust system and engine.

• Kubota M110GX
• Kubota M4N-071
• Kubota M8560
• Kubota SVL75
• Kubota SVL95-2S
• Takeuchi TL6R
• Takeuchi TL12V2
• Baroness LM3210
• Baroness GM2810

1. 1

   Check the dash monitor for a blinking yellow DPF regeneration icon and verify if the 'Auto Regeneration Inhibit' switch has been accidentally engaged by the operator.

2. 2

   Scan the ECU for accompanying codes. If P3013 (Parked Regeneration Time Out) or P3018 (All Exhaust Gas Temperature Sensor Failure) are present, a sensor failure or severe blockage is preventing the regeneration cycle.

3. 3

   Verify preconditions: ensure the battery voltage is normal and the engine can reach operating temperature, as parked regeneration will not initiate if coolant temperature is too low.

1. 1

   Relocate the Machine

   Drive the machine to a safe, well-ventilated area with no fire risks (exhaust temperatures will become extremely hot).

2. 2

   Secure the Machine

   Park the machine and apply the parking brake.

3. 3

   Set Engine Speed

   Reduce the engine throttle to 0% (minimum idling speed).

4. 4

   Disable Inhibit Mode

   If the machine is currently set to 'Auto regeneration inhibit mode,' toggle the switch back to 'Auto regeneration mode'.

5. 5

   Initiate Parked Regeneration

   Press the DPF Parked Regeneration switch. The DPF regeneration icon on the dash should change from blinking to solid yellow.

6. 6

   Wait for Completion

   The engine RPM will automatically increase. Do not interrupt the process, touch the pedals, or turn off the engine. This process can take 30 to 40 minutes.

7. 7

   Verification

   Once completed, the DPF regeneration icon will disappear, and the 50% engine power restriction will be lifted.