The Lemon IndexP0A43 is a standard engine code we haven't explained yet. Full P0A43 page
27 owner complaints · the #1 code Chrysler Pacifica owners name · 15% of Chrysler Pacifica complaints that name a code (every car: 0.2%)
2020–2025 Chrysler Pacifica · most: 2022 (9), 2023 (7), 2021 (5)
Chrysler Pacifica owners named P0A43 in 27 complaints to the U.S. government (NHTSA), most often on the 2022, 2023 and 2021 model years. The part they name most is the engine software (a reflash) (5 complaints). Complaints are owner reports, not proof of a defect.
Chrysler Pacifica model years that report P0A43
Owner complaints naming P0A43, by model year. Raw counts: years that sold more get more complaints, so this is each model year's record, not a failure rate.
What owners say caused it or fixed it
The most-named part is the engine software (a reflash), in 5 of the 27 complaints (19%). 5 of those mention it being replaced or repaired. Next: transmission (replaced or rebuilt) (4) and hybrid battery or inverter (3).
- Software update (reflash)5 complaints5 mention a repair or replacement
- Transmission replaced or rebuilt4 complaints4 mention a repair or replacement, 1 of them says the problem came back · what owners paid
- Hybrid battery or inverter3 complaintsnamed as the cause, no repair mentioned · what owners paid
12 complaints mention a recall and 6 mention a warranty.
Counted from the owners' own words: a part counts when a sentence names it with a cause or repair word. What owners wrote, not a diagnosis. A shop should confirm the cause before replacing parts.
Symptoms owners describe with P0A43
52% of these complaints say the check engine light came on.
- Stalls or shuts off59%16 of 27 complaints
- Loses power or goes into limp mode41%11 of 27 complaints
- Warning lights and electrical faults26%7 of 27 complaints
- Rattles or knocks7%2 of 27 complaints
Share of the complaints naming P0A43 whose text also describes each problem. A complaint can describe more than one.
Codes owners report with it
P0A3F 2
Other codes named in the same Chrysler Pacifica complaints, and in how many.
Keep going
- P0A43: meaning, causes and every car that reports it
- Chrysler Pacifica reliability by year
- 2022 Chrysler Pacifica problems and recalls
Other codes Chrysler Pacifica owners report
The details
How we count
We read every owner complaint in the NHTSA file whose text names this trouble code, and count the ones filed about this model (matched by the make, model and model year on the complaint). Mileage is what the owner entered on the form.
Parts: a complaint counts for a part when one of the owner's own sentences names that part together with a cause word (failed, bad, diagnosed, caused by, leaking ...) or a repair word (replaced, repaired, new, reprogrammed ...). "Came back" means the same complaint also says the problem returned or the repair didn't fix it. These are counts of what owners wrote, not a diagnosis, and one complaint can name several parts.
Complaints are reports, not proof of a defect, and most owners never file one. Popular models get more complaints, so the counts are not a failure rate. The code meaning is the standard SAE J2012 definition in our own words, or the carmaker's meaning where we verified it for that make.
What P0A43 means
P0A43 is a standard (generic) powertrain code. We haven't verified its meaning for Chrysler yet. A dealer or a scanner with the maker's software can tell you exactly.
Check the complaints yourself
NHTSA complaint numbers (search them at nhtsa.gov): 11776834, 11766369, 11762669, 11754164, 11749572, 11742633, 11740603, 11732213, 11714584, 11711592, 11710194, 11704845 and 15 more.
Quick answers
Which Chrysler Pacifica years have the most P0A43 complaints?
In complaints to NHTSA, owners of the 2022 (9), 2023 (7), 2021 (5) Chrysler Pacifica named P0A43 most (27 complaints in all, 2020–2025). Raw counts, not a failure rate.
What fixes P0A43 on a Chrysler Pacifica?
Owners most often name the engine software (a reflash) (5 of 27 complaints), then transmission (replaced or rebuilt) and hybrid battery or inverter. That's what owners wrote, not a diagnosis: have a shop confirm the cause with a scan and tests before replacing parts.
Sources: NHTSA owner complaints that name P0A43 on the Chrysler Pacifica, counted by The Lemon Index; NHTSA recalls; repair bills owners named. Meanings: SAE J2012 in our own words. Owner reports, not a diagnosis or repair advice for your car.