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P1DD2 Powertrain · manufacturer code
P1DD2 fault code: what 10 owners reported
P1DD2 is a manufacturer-specific powertrain code (engine, transmission, fuel and emissions), so its exact definition belongs to the carmaker and is not in the generic OBD-II list. What it meant in practice is below, from 10 complaints owners filed with NHTSA. Updated November 9, 2026.
- 10owner reports
- 4car models
- 0mention a crash
- 0mention a fire
- 2012–2018model years
Which cars get code P1DD2?
Every model whose owners mentioned P1DD2 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 P1DD2 show up?
By brand
- Jeep7
- Chrysler2
- Ram1
Component the owner filed it under
Is there a recall for P1DD2?
The others concern the component owners file this code under (Power Train) on the same cars; they may or may not relate to the code. Recall repairs are free; check your VIN at nhtsa.gov/recalls.
Power Train: Automatic Transmission Chrysler (FCA US LLC) is recalling certain 2018 Dodge Charger, Durango and Challenger, Jeep Grand Cherokee and Wrangler, Chrysler 300, and RAM 1500 vehicles. An incorrect transmission park lock rod may have been installed in the transmission.
2018 Chrysler 300. Full risk and remedy on each car's report.
Power Train: Automatic Transmission: Lever And Linkage: Column Shift Chrysler (FCA US LLC) is recalling certain 2016-2017 Ram 3500 Cab Chassis with a Gross Vehicle Weight Rating (GVWR) of less than 10,000 lbs, 2011-2017 Ram 3500, 4500 and 5500 Cab Chassis vehicles, 2009-2017 Ram 1500 and 2010-2017 Ram 2500 and 3500 pickup trucks, all equipped with a column shifter…
2015 Ram 1500. Full risk and remedy on each car's report.
Power Train: Automatic Transmission: Control Module (Tcm/Pcm/Tecm) Chrysler (FCA US LLC) is recalling certain model year 2012-2014 Dodge Charger and Chrysler 300 vehicles manufactured February 15, 2011, to November 27, 2014, and 2014-2015 Jeep Grand Cherokee vehicles manufactured July 16, 2012, to December 22, 2015. The affected vehicles, equipped with an…
2012 Chrysler 300. Full risk and remedy on each car's report.
Power Train: Axle Assembly: Axle Shaft Chrysler (FCA US LLC) is recalling certain model year 2015-2016 Ram 1500 trucks manufactured June 17, 2015, to September 28, 2015. The affected vehicles may have been built with rear axles that were incorrectly heat treated.
2015 Ram 1500. Full risk and remedy on each car's report.
What happened when owners saw P1DD2?
9 of the 10 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.
Latest incident (7/21/23) resulted in check engine light code: P1DD2 - “Torque Request Signal from TCM denied”. Check engine light came on - Jeep felt like it was going to stall. For several months now, I’ve had intermittent issues with the Jeep “shifting” on its own while driving without me touching the shifter. I then get an alert that I can’t change gears while driving & I have to pull over to try to resolve the issue. This has happened to me several times but when I’ve reported it, the mechanic / Jeep dealer couldn’t make the issue happen again. In addition, since owning this Jeep, the most I can drive is 3000 miles before needing an oil change. My oil is being “burned through”. Most…
goes into 4th gear and will not shift up or down DTC P1DD2 gas leaking from sending unit area and fan wont kick on untilk 230F also has electrical problems
JAN. 5 2020: SERVICE ENGINE APPEARED WHILE DRIVING. I DROVE 2 MILES FROM WORK TO HOME AND MY JEEP WOULD NOT ACCELERATE UP MY ANGLED DRIVEWAY. I WAS PRESSING THE ACCELERATOR BUT THE VEHICLE WAS SLOWLY GOING BACKWARD. I COASTED BACKWARD TO A LEVEL AREA AND PUT THE VEHICLE IN PARK. I PUT IT IN DRIVE AND THEN WAS ABLE TO CLIMB MY DRIVEWAY AS NORMAL. JEEP WAS NOTIFIED. OBD CODE WAS U0402 (IMPLAUSIBLE DATA RECEIVED FROM TCM) AND (P1DD2 TORQUE REQUEST SIGNAL FROM TCM DENIED). JEEP AND CHRYSTLER STATE THERE ARE NO RECALLS AT THIS TIME.
The concern is a rear end collision. At road speeds, vehicle changed to neutral (popped out of gear). Engine continued to run. Vehicle had to cost to a safe spot. At stop the vehicle was turned completely off and restarted with no issue. This is a repeatable but intermittent issue. This issue has also occurred at stop signs and slow speeds. The engine check light and ABS Light did come on. The following stored codes were present: P0340, P1DD2 and U1424. The following pending codes were present: P1DD2, U017E-70, P0340-30, U1424, U0415. Camshaft Position Sensor was changed; but didn't fix the issue.
…I pulled into auto zone and had them read the check engine light and the code said P1DD2-TORQUE request singal from TCM Denied. Most likely solution: REPROGRAM ELECTRONIC SHIFT MODULE (ESM) POWERTRAIN SYSTEM.
…LASTLY, VEHICLE THREW 3 CODES FOR TRANSMISSION SENSORS AS WELL AS EGR (U0402, U0402PD, AND P1DD2) WHILE CASUALLY DRIVING. THIS CAUSED THE CHECK ENGINE LIGHT TO COME ON AS WELL AS VEHICLE TO GO INTO LIMP MODE. THIS CAUSED A DANGEROUS INCIDENT WHILE TRYING TO PASS A VEHICLE. VEHICLE IS IN SHOP FOR ISSUE ON 4/26.
OUTRAGIOUS OIL CONSUMPTION, CAR SHUTS DOWN OR SLOWS DOWN SIGNIFICANTLY WHILE DRIVING, CHECK ENGINE LIGHT CAME ON AND NOW READS CODE P1DD2, IVE ONLY HAD THIS VEHICLE FOR 1.5 YRS. AND IVE HAD TO CHANGE OIL ABOUT 8 TIMES AND CARRY EXTRA OIL WITH ME IN CASE IT ACTS UP OR NEEDS IT. NOW CAR WONT GO OVER 30 MPH AND SPITS AND SPUTTERS. I JUST GOT AN OIL CHANGE DONE! LITERALLY 2 DAYS AGO. PLUS I JUST HAD TO REPLACE SWAY BAR LINKS AND BOTH FRONT TIRES DUE TO ACCESSIVE WEAR. THIS VEHICLE DOESNT EVEN HAVE 35,000 MILES ON IT. THERE SHOULD BE NO REASON TO REPLACE THOSE THINGS SO SOON. PLEASE HELP!
While parked for maybe 10 minutes, the service engine and service transmission lights dinged. When putting in reverse it shifted really hard and felt like the car jumped. No problem going in reverse, but would not accelerate very well, couldn’t go over 30-35mph. Going on 2 days now! The code we’ve gotten is “P1DD2”, but no one seems to know what it means. Taking it in Monday morning. Very frustrating and not safe at all!! I’ve read several issues of the same incident(s).
…WHEN AUTOZONE CHECK CODE IT POPPED UP P1DD2 (WITH NO DESCRIPTION OF WHAT THE CODE WAS CAUSED BY). THE VEHICLE ELECTRICAL IS NOT STABLE. IN MULTIPLE INSTANCES MY VEHICLE LIGHTS AND POWER HAVE GONE IN AND OUT WHILE IDLE AND DRIVING. IT SLOWS DOWN MY VEHICLE SUDDENLY. I HAVE HEARD A LOT ABOUT TRANSMISSION AND ENGINE ISSUES WITH THE NEWER JEEPS BUT I DIDN'T THINK THIS WOULD HAPPEN TO ME. I DON'T THINK MY VEHICLE IS SAFE AND WOULD LIKE A MORE PROFESSIONAL INPUT SINCE THE DEALERSHIP I BOUGHT THE VEHICLE FROM IS NEVER AVAILABLE TO ASSIST.
P1DD2: questions drivers ask
What does code P1DD2 mean?
P1DD2 is a manufacturer-specific powertrain code (engine, transmission, fuel and emissions), so its exact definition depends on the carmaker and is not in the generic OBD-II list. 10 owners reported it to NHTSA, most often for the Jeep Compass (6), Chrysler 300 (2), Jeep Renegade (1); their reports describe what happened.
Which cars get code P1DD2 most often?
In NHTSA owner complaints, P1DD2 is mentioned most for the Jeep Compass (6), Chrysler 300 (2), Jeep Renegade (1), across 4 models and model years 2012 to 2018. Popular models collect more reports because more of them are on the road.
Is there a recall for code P1DD2?
No NHTSA recall text names P1DD2 directly. 4 recalls on the cars that report this code concern the same component owners name most (Power Train); they may or may not relate to the code. Check your VIN at nhtsa.gov/recalls.
What should I do if my car shows P1DD2?
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 P1DD2. Manufacturer codes have no public standard definition, 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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