Fault Code Lookup › Powertrain codes › P00AF
P00AF Powertrain · generic range, no listed definition
P00AF fault code: what 12 owners reported
P00AF 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 12 complaints owners filed with NHTSA. Updated November 9, 2026.
Owners also write it as P00AF00 (the last two characters are the sub-code).
- 12owner reports
- 10car models
- 0mention a crash
- 0mention a fire
- 2015–2023model years
Which cars get code P00AF?
Every model whose owners mentioned P00AF 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.
Jeep Wrangler
2 reportsVolkswagen Golf
2 reportsVolkswagen Golf GTI
2 reportsVolkswagen Golf R
2 reportsJeep Gladiator
1 reportRam 2500
1 reportRam 3500
1 reportVolkswagen Alltrack
1 reportVolkswagen Golf SportWagen
1 reportWhere does P00AF show up?
By brand
- Ram7
- Jeep3
- Volkswagen2
Component the owner filed it under
Is there a recall for P00AF?
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 Chrysler (FCA US, LLC) is recalling certain 2021-2023 Jeep Wrangler 4xe vehicles equipped with 2.0L Plug-In Hybrid Electric Vehicle engines. A loss of communication may cause an engine shutdown.
2021 Jeep Wrangler. Full risk and remedy on each car's report.
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.
2015 Ram 3500. Full risk and remedy on each car's report.
What happened when owners saw P00AF?
10 of the 12 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.
I own a 2021 Ram 1500 with the 3.0L EcoDiesel Gen 3 engine. The vehicle has experienced diagnostic trouble code P00AF, indicating a turbocharger/variable geometry turbocharger (VGT) boost-control performance problem. I have already taken the vehicle to a Ram dealership for this same issue. The dealership performed a computer/software update in an attempt to correct the problem, but the P00AF issue continued afterward. I returned to the dealership and was told they could not reproduce the problem during their test drive and therefore could not repair it. The problem remains unresolved. I am concerned this may involve a premature failure or defect involving the turbocharger, electronic VGT…
Loss of power. Vehicle went into limp mode. Codes P00AF, P24B1 and P1DB1. Vehicle only has 28,500 miles and is having constant electrical issues.
Vehicle EPC light comes on dash. OBD code is "P00AF00 - Turbocharger Boost Control "A" Module". This error causes sudden loss of power and loss of driver assistance (forward collision assist, blind spot assist, cruise control, etc.). Vehicle is available for inspection upon request. Upon checking turbo charger, the wastegate actuator arm is seized up, keeping the wastegate from functioning properly, failing to maintain boost pressure and entering limp mode causing sudden loss of power and acceleration. This has happened while on the roadway, attempting to merge into highway traffic, change lanes & pass other vehicles. This caused the vehicle behind me to close the distance very rapidly…
…I investigated the code that was provided by JScan “P00AF” and discovered that numerous owners had experienced the same situation across all lines of vehicles that use the Gen 3 Ecodiesel. I counted 37 separate reports while using Google in 15 minutes of searching. This is a serious safety issue as I was traveling at interstate speeds uphill and went from 65-70 mph down to a slow rate of travel in a matter of seconds and to my knowledge no brake lights illuminated as cars were changing lanes behind me rapidly due to my sudden decrease in speed. It appears likely to be a programming or electrical malfunction with the turbo wastegate actuator and corresponding sensors that is not indicative of…
CONSISTENTLY GETTING A P00AF ENGINE CODE. PERTAINS TO THE TURBO BOOST ACTUATOR. APPARENTLY THIS HAS BECOME A COMMON PROBLEM WITH MANY OF THE RAM 6.7L CUMMINS ENGINES. THIS CAN LEAD TO POOR ENGINE PERFORMANCE AND EVENTUALLY CATASTROPHIC ENGINE FAILURE. CURRENTLY THE REPAIR COST JUST FOR THE ACTUATOR THROUGH MOPAR IS $3000. OBVIOUSLY THIS IS A RECURRING ISSUE WITH THESE TRUCKS, AT A SUBSTANTIAL COST TO THE CONSUMER. I BEGAN NOTICING THAT MY ENGINE BRAKE WOULD NOT ENGAGE WHEN DESCENDING GRADES, AND THEN I STARTED GETTING AN INTERMITTENT ENGINE LIGHT WOULD COME ON, NOW IT COMES ON ALL THE TIME. I HAD A LOCAL PARTS STORE LOOK UP THE ENGINE CODE FOR ME AND IT LOGGED A P00AF CONDITION. I GOOGLED…
Turbo Wastegate actuator rod/flap failure/seizure. VW dealership & Independent service center both diagnosed the issue as a seized wastegate actuator flap/rod. This is due to poor design and is a common issue on all 2015-2020 VW/Audi 1.8l TSI engines. This issue causes intermittent engine codes for "low boost" related codes. P00AF00 and similar codes without warning. A key cycle usually temporarily fixes the problem until under boost again. This prevents safe operation of the vehicle while on highways and freeways. Engine shaking & prevention of acceleration and shifting happens after the engine code occur and the car is put into a limp mode. It is unsafe to maneuver the vehicle to the side…
While driving a 2023 Ram 1500 EcoDiesel (37,000 miles) at highway speeds while towing a load on an incline grade, the vehicle experienced a sudden, uncommanded drop into an aggressive "Limp Mode." The dashboard displayed a "Service Electronic Throttle" warning, and engine power was immediately and severely restricted. While I was able to safely move the vehicle over to the shoulder, the truck completely lost the power required to maintain highway speed, increase speed, or clear the incline grade. A diagnostic scan revealed code P00AF (Turbocharger Boost Control Module Performance). After sitting for several minutes the limp mode cleared and was able to drive off as normal, however the limp…
While driving on a one way high way. Was about to overtake a semi truck. While half way on the opposite lane doing a legal overtake my acceleration decreased significantly, nearly causing my passengers and I to get into a head on collision with the another vehicle. All of this was due to the fact that the Jeep’s acceleration was decreased. The following warning appeared and code was registered: Check engine light code P00AF Service Electric Throttle Control stop/start unavailable Service stop start system Acceleration issues after shutting down my engine all the codes disappear and vehicle precedes to normal driving. I am extremely worried that this might happen again and pace me and my…
While towing, my truck threw P00AF-00 Turbocharger Boost Control Module "A" Performance and ABS C121C-00 Torque Request Signal Denied codes and I lost power due to turbocharger not engaging. Alarms that were lit included CEL, Service Electronic Throttle Control, and the Stabilizer system. The safety aspect is the loss of power while towing on a highway. The original code was cleared by my hometown dealer and vehicle ran well. 130 miles later it happened again, cleared by dealer in Parkersburg WV On the way home it happened a 3rd time. After parking for half an hour the alarm lights went off and I had full power. A day later the CEL also went off leaving no evidence of a problem on my dash…
While towing, the cluster presented "Service Electronic Throttle" warning, lost the ability to accelerate (limp mode), and also lost electronic skid control. Code P00AF was stored. The turbocharger is now being replaced. This is a serious safety issue that is being reported by hundreds of owners of FCA products with this engine across their brands. The same repair is being applied regardless if it is Ram or Jeep, replacing the turbocharger. There is clearly a safety issue and it seems that nobody is doing anything about this widespread safety issue. It is far from isolated and someone will inevitably become seriously injured as a result of this no known flaw if it remains unaddressed by the…
P00AF: questions drivers ask
What does code P00AF mean?
P00AF 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. 12 owners reported it to NHTSA, most often for the Ram 1500 (5), Jeep Wrangler (2), Volkswagen Golf (2); their reports describe what happened.
Which cars get code P00AF most often?
In NHTSA owner complaints, P00AF is mentioned most for the Ram 1500 (5), Jeep Wrangler (2), Volkswagen Golf (2), across 10 models and model years 2015 to 2023. Popular models collect more reports because more of them are on the road.
Is there a recall for code P00AF?
No NHTSA recall text names P00AF 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 P00AF?
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 P00AF (including sub-code forms such as P00AF00). 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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