Fault Code Lookup › Powertrain codes › P003A
P003A Powertrain · generic range, no listed definition
P003A fault code: what 3 owners reported
P003A sits in the generic powertrain range (engine, transmission, fuel and emissions), but its SAE definition is not in CarHooq's list, so this page shows only what owners reported. What it meant in practice is below, from 3 complaints owners filed with NHTSA. Updated November 9, 2026.
Owners also write it as P003A00 (the last two characters are the sub-code).
- 3owner reports
- 3car models
- 0mention a crash
- 0mention a fire
- 2016–2025model years
Which cars get code P003A?
Every model whose owners mentioned P003A in a complaint, most reports first. Each year opens that car's full problem report. Popular models collect more reports because more of them are on the road.
Where does P003A show up?
By brand
- Ram2
- Audi1
Component the owner filed it under
Is there a recall for P003A?
The others concern the component owners file this code under (Engine) on the same cars; they may or may not relate to the code. Recall repairs are free; check your VIN at nhtsa.gov/recalls.
Engine And Engine Cooling: Engine: Diesel Chrysler (FCA US LLC) is recalling certain 2013-2017 RAM 2500, 3500, 3500 Cab Chassis, 4500 Cab Chassis, and 5500 Cab Chassis vehicles, equipped with Cummins 6.7L Turbo Diesel engines that have Concentric-brand water pumps without a vent hole. These water pumps may leak coolant.
2016 Ram 3500. Full risk and remedy on each car's report.
Engine And Engine Cooling: Engine Chrysler (FCA US LLC) is recalling certain model year 2016 Ram 2500, 3500, 3500 Cab Chassis and 4500/5500 Cab Chassis trucks manufactured July 31, 2015, to August 13, 2015 and equipped with a 6.7L Cummins Diesel engine. In the affected vehicles, the Engine Control Module (ECM) may short circuit…
2016 Ram 3500. Full risk and remedy on each car's report.
What happened when owners saw P003A?
3 of the 3 reports, spread across the models above, as the owners wrote them. NHTSA removes names and VINs; long reports are trimmed. CarHooq has not verified individual claims.
Fault P003A00 (Turbocharger Boost Control Position Sensor). Vehicle suffered a catastrophic power failure (Limp Mode) on Day 2 of ownership. Total loss of acceleration while in traffic. Manufacturer admits it is a 'known software issue' with no current fix, creating an extreme collision risk for the driver." Vehicle is at dealership since Feb 4th, 2026
I have experienced unexpected loss of power during acceleration, lack of exhaust breaking and engine codes p003a and p006f which I believe are associated with the turbo actuator.
The contact owns a 2016 RAM 3500. The contact stated that while her husband was driving on several occasions at various speeds, the vehicle lost power and did not accelerate as intended. The vehicle was not diagnosed or repaired. The contact stated that her husband hooked the vehicle up to a handheld diagnostic machine where codes: P003A, P006a, P0046 populated. The manufacturer was notified of the failure. The failure mileage was approximately 74,500.
P003A: questions drivers ask
What does code P003A mean?
P003A sits in the generic powertrain range (engine, transmission, fuel and emissions), but its SAE definition is not in CarHooq's list, so CarHooq shows only what owners reported. 3 owners reported it to NHTSA, most often for the Audi Q5 (1), Ram 2500 (1), Ram 3500 (1); their reports describe what happened.
Which cars get code P003A most often?
In NHTSA owner complaints, P003A is mentioned most for the Audi Q5 (1), Ram 2500 (1), Ram 3500 (1), across 3 models and model years 2016 to 2025. Popular models collect more reports because more of them are on the road.
Is there a recall for code P003A?
No NHTSA recall text names P003A directly. 2 recalls on the cars that report this code concern the same component owners name most (Engine); they may or may not relate to the code. Check your VIN at nhtsa.gov/recalls.
What should I do if my car shows P003A?
Write down when the code appeared and what the car did (warning lights, loss of power, noises, speed, weather). Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer or independent workshop to read the stored freeze-frame data before anyone clears the code, and keep the repair order. If the car loses power in traffic, stop driving it. CarHooq does not diagnose: these are owner reports and official recall notices, not repair advice.
How this page was made
CarHooq read the text of every owner complaint filed with NHTSA for 19 US and European brands (model years 2012 onwards) and picked out the diagnostic trouble codes owners wrote down. This page lists every mention of P003A (including sub-code forms such as P003A00). The code is in a generic range but its standard definition is not in CarHooq's list, so CarHooq shows only what owners reported. Nothing here is a diagnosis. More answers: the fault code FAQ. Data: NHTSA Office of Defects Investigation (public domain), retrieved November 9, 2026. How CarHooq reports are made.
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