John Deere PowerTech Fault Codes
John Deere builds its own diesel engines under the PowerTech name -- PSS (Series-Sequential), PVS (Variable Geometry single-turbo), and E platforms. These engines power the entire green and yellow lineup: 6R / 7R / 8R / 9R row-crop tractors, S-Series combines, R4045 / R4060 sprayers, and the construction equipment line. Fault codes are reported as J1939 SPN/FMI pairs and read via John Deere Service ADVISOR with a CF3 / EDL v3 interface.
174 fault codes documented· 4 engine platforms · SPN / FMI (Service ADVISOR) · 2011 - present (Tier 4 Final)
Most Common John Deere Fault Codes
Showing 24 of 174 John Deere codes, sorted by severity. Each links to causes, diagnostics, common fixes, and repair cost estimates.
JD-SPN100-FMI1 critical
Engine Oil Pressure - Data Valid but Below Normal Operational Range (Most Severe)
JD-SPN110-FMI0 critical
Engine Coolant Temperature - Data Valid but Above Normal (Most Severe)
JD-SPN168-FMI1 critical
Battery / ECU Power Supply Voltage - Data Valid but Below Normal Operational Range (Most Severe)
JD-SPN190-FMI0 critical
Engine Speed - Data Valid but Above Normal (Overspeed)
JD-SPN2791-FMI0 critical
EGR Valve Position - Data Valid but Above Normal Operational Range (Most Severe)
JD-SPN102-FMI16 serious
Intake Manifold Pressure High - Overboost
JD-SPN105-FMI0 serious
Intake Manifold Temperature - Data Valid but Above Normal Operational Range (Most Severe)
JD-SPN1075-FMI0 serious
Fuel Filter Water-In-Fuel (WIF) Indicator - Data Valid but Above Normal Operational Range (Most Severe)
JD-SPN108-FMI2 serious
Barometric Pressure Sensor - Data Erratic, Intermittent, or Incorrect
JD-SPN1127-FMI0 serious
Turbocharger #1 Boost Pressure - Data Valid but Above Normal Operational Range (Most Severe)
JD-SPN1127-FMI1 serious
Turbocharger #1 Boost Pressure - Data Valid but Below Normal Operational Range (Most Severe)
JD-SPN1180-FMI0 serious
Turbocharger #1 Turbine Inlet Temperature - Data Valid but Above Normal Operational Range (Most Severe)
JD-SPN1184-FMI0 serious
Turbocharger #1 Turbine Outlet Temperature - Data Valid but Above Normal Operational Range (Most Severe)
JD-SPN157-FMI0 serious
Fuel Rail Pressure - Above Normal Range (High)
JD-SPN157-FMI1 serious
Fuel Rail Pressure - Below Normal Range (Low)
JD-SPN174-FMI0 serious
Fuel Temperature - Data Valid but Above Normal Operational Range (Most Severe)
JD-SPN175-FMI0 serious
Engine Oil Temperature - Data Valid but Above Normal Operational Range (Most Severe)
JD-SPN182-FMI14 serious
Trip Fuel Rate - Special Instructions
JD-SPN185-FMI14 serious
Average Fuel Economy (mpg or L/hr) - Special Instructions
JD-SPN237-FMI14 serious
Vehicle Identification Number Mismatch - Special Instructions
JD-SPN237-FMI2 serious
Vehicle Identification Number Mismatch - Data Erratic, Intermittent, or Incorrect
JD-SPN245-FMI14 serious
Total Engine Hours - Special Instructions
JD-SPN2630-FMI0 serious
Charge Air Cooler Outlet Temperature - Data Valid but Above Normal Operational Range (Most Severe)
JD-SPN2791-FMI14 serious
EGR Valve Position - Special Instructions
PowerTech Engine Platforms
| Platform | Years | Applications | Notes |
|---|---|---|---|
| PowerTech PSS | 2014-present | 6R, 7R, 8R, 9R series row-crop tractors; S-series combines; R4045/R4060 sprayers | Series-Sequential Turbocharging for the largest JD tractors. SCR + DPF + EGR cooled aftertreatment. |
| PowerTech PVS | 2011-2014 | 6R, 7R, 8R medium-frame row-crop | Variable Geometry single-turbo predecessor to PSS. Most JD codes from this generation. |
| PowerTech E (PE) | 2011-present | Compact and utility tractors, 5E, 6D, smaller combines | Lower-power "E" platform. Wastegate turbo, simpler aftertreatment. |
| PowerTech M (PWM) | 2014-present | Construction equipment (loaders, backhoes, dozers) | Off-road industrial variant, often with simpler emissions package depending on Tier 4 / Stage V certification. |
Common John Deere Issues
- DEF / SCR dosing unit failures triggering derate during in-field operation
- DPF differential pressure faults requiring forced regen via Service ADVISOR
- EGR cooler / NRS (NOx Reduction System) cooler internal coolant leaks
- Valve-cover injector harness chafing causing intermittent injector codes (classic PowerTech issue)
- CAN data trace loss between ECU and cluster on tractors with extended harnessing
- High-pressure fuel pump (HPFP) wear on high-hour combines and sprayers
- Water-in-fuel sensor (WIF) faults from short homeowner use on 1025R / 2025R compact tractors