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P1790 Powertrain · manufacturer code
P1790 fault code: what 3 Chrysler owners reported
P1790 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 3 complaints owners filed with NHTSA. Updated November 9, 2026.
- 3owner reports
- 2car models
- 0mention a crash
- 0mention a fire
- 2014–2016model years
Which cars get code P1790?
Every model whose owners mentioned P1790 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.
Chrysler 200
1 reportWhere does P1790 show up?
By brand
- Chrysler3
Component the owner filed it under
Is there a recall for P1790?
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 model year 2015-2016 Chrysler Town & Country, Dodge Grand Caravan vehicles manufactured July 31, 2015, to April 18, 2016, 2016 Dodge Journey vehicles manufactured August 17, 2015, to January 29, 2016, and 2016 RAM ProMaster vehicles manufactured August 15…
2016 Chrysler Town and Country, 2015 Chrysler Town and Country. Full risk and remedy on each car's report.
What happened when owners saw P1790?
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.
My van only has 59,400 miles on it. We were on vacation stopped at a stoplight, when the light turned green, I stepped on the gas pedal, the engine would rev up and there was a high pitched sound, and then the van would jerk forward. The van exhibited difficulty with shifting. No warning lights came on before this incident, only after the van started to exhibit difficulty shifting. Codes noted: P0734-Gear Ratio Error in 4th P0868-Line Pressure Low P0745-Gear Ratio Error in 5th P083B-LC Pressure switch rationality P1790- Fault Immediately After Shift P0944-Loss of hydraulic Pump Prime I had to have my van towed to a Chrysler dealership they noted that the transmission fluid pump line pressure…
Transmission FAIL check engine light went on. Car was not accellorating, bucking can't drive over 30 MGH. Thank god I was drving a back street when it happened and not the Mass Pike. Two estimates done. They both said replace the transmission. WHAT ??? Burnt transmission fluid at 77,400 miles. Three Diagnostic Errors P0128 P0734 P1790 . I have to REPLACE my transmission at a cost of $5,000 This is not supppose to happen at 77,400 . Please advise and recall or concessions available.
…AFTER THE TCM WAS REPLACED IT IS THROWING CODES P0731, P0792, P1790. WAS NOT THROWING ANY CODES PRIOR TO THE TCM REPLACEMENT 3 WEEKS AGO. ISSUE ALSO HAPPENS FROM A STOP WITH NO TURN. ISSUES STARTED SUMMER OF 2017 AND HAVE BEEN GETTING WORSE.
P1790: questions drivers ask
What does code P1790 mean?
P1790 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. 3 owners reported it to NHTSA, most often for the Chrysler Town and Country (2), Chrysler 200 (1); their reports describe what happened.
Which cars get code P1790 most often?
In NHTSA owner complaints, P1790 is mentioned most for the Chrysler Town and Country (2), Chrysler 200 (1), across 2 models and model years 2014 to 2016. Popular models collect more reports because more of them are on the road.
Is there a recall for code P1790?
No NHTSA recall text names P1790 directly. 1 recall on the cars that report this code concerns 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 P1790?
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 P1790. 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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