Fault Code Lookup › Powertrain codes › P0122
P0122 Powertrain · generic OBD-II
Throttle/Pedal Position Sensor/Switch 'A' Circuit Low
P0122 is a standard code covering engine, transmission, fuel and emissions. It names the system that logged the fault, not the part that failed. Below: which cars owners reported it on, what happened, and recalls on those cars, from 6 complaints filed with NHTSA. Updated November 3, 2026.
- 6owner reports
- 5car models
- 0mention a crash
- 0mention a fire
- 2012–2019model years
Which cars get code P0122?
Every model whose owners mentioned P0122 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 P0122 show up?
By brand
- Ford3
- Chevrolet2
- Mercedes-Benz1
Component the owner filed it under
Is there a recall for P0122?
As of November 3, 2026, no NHTSA recall on the cars reporting P0122 names this code or its most-reported component. Recalls can be issued at any time: check your VIN at nhtsa.gov/recalls.
What happened when owners saw P0122?
6 of the 6 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.
THE VEHICLE WAS DRIVING NORMAL IN SUBURBAN TRAFFIC. STOP & GO WITH SPEEDS UP TO 40 MPH. DURING STOP AT LIGHT THE CHECK ENGINE LITE CAME ON AND THE VEHICLE WOULD NOT ACCELERATE. THE YELLOW CHECK ENGINE LITE IS ON. THE VEHICLE IS IN LIMP MODE. OBDII CODES: P0122, P0222, P2111, P2135. THROTTLE BODY FAILURE. *JS
CONSTANTLY GET A SHUDDER AT LOW RPM'S 30-50MPH- LIKE THE CAR DOES NOT KNOW WHAT GEAR IT WANTS TO BE IN. ALSO RECIEVE P0122 CODE OF THROTTLE AFTER FAST ACCELERATION. TAKING THIS TO PERFORMANCE ENGINE PLACE TO DIAGNOSE
UPDATE OF NHTSA ID NUMBER: 10809089. THE STABILITRAK AND REDUCED ENGINE POWER HAS INCREASED TO THE FOLLOWING OBD CODES: P0010, P0122, P0202, P0233, P0335, P0455, P0340, P1682, P2089 AS WELL. AT THIS POINT THERE DOESN'T APPEAR TO BE ANYTHING LEFT ON THE VEHICLE THAT DOES WORK. SINCE THE RECALLS AND TECHNICAL BULLETINS ALL APPEAR TO HAVE BEEN "COMPLETED" FOR THIS VEHICLE I GUESS I CAN LOOK FORWARD TO REPEATING THE SAME PROBLEMATIC REPAIRS AGAIN AND AGAIN FOR THE REMAINDER OF THE TIME THAT I OWN THIS VEHICLE WHICH DO NOT APPEAR TO HAVE RESOLVED BUT MERELY BAND AIDED AWAY UNTIL THEY REAPPEAR. EVEN THE DRIVERS DOOR SWITCHES ALL HAD TO BE REPLACED WHICH TELLS ME THAT THIS IS RELATED TO AN…
The check engine light comes on; check and advise. The Ford dealer performed an EEC test, retrieved codes P1674 and P0122, tested the system, and found the wiring harness rubbing at the intake manifold. They disassembled to gain access, repaired the wiring harness at the engine, wrapped and re-routed the harness, cleaned all codes, and retested. It passed the road test and was OK, but the dealer charged me for this harness repair, and I found that this exact issue was subject to a Ford Motor Company safety recall (Recall 14S17 / NHTSA Recall 14V-495) concerning the engine wiring harness.
Throttle body and accelerator pedal position sensors failed. Component is available for inspection upon request. Independent service center confirmed failure on 1/3/2026 with 6 stored fault codes: P2101, P0122, P0222, P0123, P0223, P2135. Vehicle shuts off while driving without warning at various speeds. Loss of power steering and power brakes occurs when engine stalls, creating immediate risk of crash, injury or death to occupants and other drivers. Manufacturer customer service confirmed in writing 4 times that engine shutting off while driving is a safety issue and that these exact codes match Service Campaign 2022090005. On 1/7/2026, manufacturer denied campaign applies to this vehicle…
DRIVING IN STOP AND GO TRAFFIC. STOPPED AT LITE. CHECK ENGINE LITE CAME ON. NO POWER. HAD TO IDLE HOME. OBDII CODES P0122, P0222, P2111. P2135. TPS READING STUCK AT 82%. DEFECTIVE THROTTLE BODY. *JS
P0122: questions drivers ask
What does code P0122 mean?
P0122 is a generic OBD-II powertrain code. Its standard definition is "Throttle/Pedal Position Sensor/Switch 'A' Circuit Low". The code tells you which system set the fault, not which part failed; the owner reports on this page show what it meant in practice for 5 car models.
Which cars get code P0122 most often?
In NHTSA owner complaints, P0122 is mentioned most for the Ford Transit Connect (2), Chevrolet Camaro (1), Chevrolet Silverado (1), across 5 models and model years 2012 to 2019. Popular models collect more reports because more of them are on the road.
Is there a recall for code P0122?
As of November 2026, no NHTSA recall on the cars reporting P0122 names this code or its most-reported component. Recalls can be issued at any time, so check your VIN at nhtsa.gov/recalls.
What should I do if my car shows P0122?
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 P0122. The definition is the generic SAE J2012 wording; a carmaker may use the code slightly differently. Nothing here is a diagnosis. Data: NHTSA Office of Defects Investigation (public domain), retrieved November 3, 2026. How CarHooq reports are made.
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