Injector Circuit / Open Cylinder #3
The KUBOTA-P0203 (Kubota) diesel fault code means: Injector Circuit / Open Cylinder #3. This is a serious severity code.
- Keep driving?
- Yes, with caution
- DIY difficulty
- intermediate
- Estimated cost
- $380-$780 injector
What Are the Symptoms of KUBOTA-P0203?
- Cyl 3 misfire
- Power loss
What Causes KUBOTA-P0203? (Most Likely First)
- Injector fault Likely
- Wiring break Likely
Can I Still Drive with KUBOTA-P0203?
Yes, with caution. KUBOTA-P0203 is rated serious severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
Frequently Asked Questions
What is Kubota code P0203?
Kubota P0203 means: Injector Circuit / Open Cylinder #3. Serious code -- address promptly to avoid inducement / further damage.
Can I keep using my Kubota with P0203?
Serious fault -- you can move the machine to a shop but don't run it under load. Use Kubota Diagmaster software (dealer tool) for full diagnostics.
How much does P0203 cost to fix on a Kubota?
Repair cost range: $380-$780 injector. Compact-tractor labor is typically $110-$150/hr in 2026.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose KUBOTA-P0203?
Swap injector and retest.
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines P0203 as a generic OBD-II code)
P0203 on Other Platforms
The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown:
Which Vehicles Commonly Get KUBOTA-P0203?
- Kubota BX1880 / BX2380 / BX23S sub-compact tractors
- Kubota L2501 / L3301 / L3901 utility tractors
- Kubota L4060 / L4760 / L5060 / L5460 grand L tractors
- Kubota M5-091 / M5-111 utility tractors
- Kubota M6S-111 / M7060 / M7-132 / M7-152 tractors
- Kubota MX5400 / MX6000 utility tractors
- Kubota SVL65-2 / SVL75-2 / SVL95-2s skid steer loaders
- Kubota SSV65 / SSV75 skid steer loaders
- Kubota RTV-X1100C / RTV-X1140 / RTV1140CPX utility vehicles
- Kubota generator sets (GL, GR, SQ series)
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