P20BA: owner reports and bulletins
Got P20BA on your scanner? Tell the mechanic your year, make, model and any symptoms and you'll get the likely cause and what to check first. Ask about this code.
What owners report to NHTSA
15 complaints filed with NHTSA mention P20BA, 15 of them since 2015, across 4 different models. The component owners most often filed it under: fuel/propulsion system.
Most-reported models
| Vehicle | Complaints | Model years reported |
|---|---|---|
| FORD F-250 SD | 9 | 2014, 2015, 2016 |
| FORD F-350 SD | 4 | 2015, 2016 |
Manufacturer service bulletins that name P20BA
21 technical service bulletins and manufacturer communications filed with NHTSA mention P20BA, from 5 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:
- VOLVO VOLVO TRUCK, bulletin 10203851: Diagnostic Trouble Code ( DTC ) P20BA, ( Related DTC P20E8 ) : Fault Code Reductant ( Diesel Exhaust Fluid - DEF ) Heater Control Performance Diagnosis
- MACK MACK, bulletin 10203983: Diagnostic Trouble Code ( DTC ) P20BA, ( Related DTC P20E8 ) : Fault Code Reductant ( Diesel Exhaust Fluid - DEF ) Heater Control Performance Diagnosis
- FORD F-150 (2018, 2019, 2020, 2021), bulletin 10212102: Some 2018-2021 F-150 vehicles equipped with a 3.0L diesel engine, 2016-2022 F-650/F-750 vehicles equipped with a 6.7L engine, and 2017-2022 F-Super Duty vehicles equipped with a 6.7L engine and built on or before 08-Mar-…
- FORD F-750 SD (2016, 2017, 2018, 2019), bulletin 10201907: Some 2018-2020 F-150 vehicles built on or before 1-Apr-2020 equipped with a 3.0L diesel engine, 2017-2019 F-Super Duty vehicles built on or before 30-Oct-2019 equipped with a 6.7L engine and 2016-2019 F-650/F-750 vehicle…
- JEEP GRAND CHEROKEE (2014), bulletin 10137010: Flash: MIL Illumination - Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. Some customers may experience a condition t…
- RAM 1500 (2014), bulletin 10137024: Flash: MIL Illumination - Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. Some customers may experience a Malfunction…
Sources: NHTSA Office of Defects Investigation complaint database and manufacturer communications file, snapshots September 2026. A complaint or bulletin that mentions a code is a report about that vehicle, not a statement that the code has one cause.