The Lemon IndexThe torque converter lockup solenoid has an electrical fault. Full P0740 page
41 owner complaints · the #2 code Honda Odyssey owners name · 16% of Honda Odyssey complaints that name a code (every car: 0.8%)
Middle of 104,000 miles · most between 86,000 and 119,000 (40 owners gave it)
Honda Odyssey owners named P0740 in 41 complaints to the U.S. government (NHTSA), most often on the 2003, 2001 and 2004 model years, at a middle of 104,000 miles. The part they name most is the transmission (replaced or rebuilt) (19 complaints). Complaints are owner reports, not proof of a defect.
Honda Odyssey model years that report P0740
Owner complaints naming P0740, by model year. Raw counts: years that sold more get more complaints, so this is each model year's record, not a failure rate.
Mileage when it happened
104,000 miles is the middle of what 40 owners entered. Half were between 86,000 and 119,000 miles.
The mileage on the complaint form, when the owner gave one.
What owners say caused it or fixed it
The most-named part is the transmission (replaced or rebuilt), in 19 of the 41 complaints (46%). 19 of those mention it being replaced or repaired, and 5 say the problem came back afterwards. Next: torque converter (6).
- Transmission replaced or rebuilt19 complaints19 mention a repair or replacement, 5 of them say the problem came back · what Honda Odyssey owners paid
- Torque converter6 complaints3 mention a repair or replacement, 1 of them says the problem came back · what Honda Odyssey owners paid
13 complaints mention a recall and 9 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 P0740
59% of these complaints say the check engine light came on.
- Transmission slips or shifts hard17%7 of 41 complaints
- Loses power or goes into limp mode10%4 of 41 complaints
Share of the complaints naming P0740 whose text also describes each problem. A complaint can describe more than one.
Codes owners report with it
Other codes named in the same Honda Odyssey complaints, and in how many.
Repair costs
- Transmission replacement$3,7506 bills · middle bill
- Torque converter replacement$5001 bill
Repair bills owners named in these 41 complaints (7 in all). Owner reports, not a quote: costs vary by shop and region.
Recalls on these Honda Odyssey years
- Transmission & drivetrain · 2002, 2003, 2004 · issued 2004
ON SOME MINI VANS, SPORT UTILITY AND PASSENGER VEHICLES, CERTAIN OPERATING CONDITIONS CAN RESULT IN HEAT BUILD-UP BETWEEN THE COUNTERSHAFT AND SECONDARY SHAFT SECOND GEARS IN THE AUTOMATIC TRANSMISSION, EVENTUALLY LEADIN… NHTSA 04V176000
1 recall for the same systems (powertrain) on the Honda Odyssey model years above. A recall for the same system isn't proof it's behind P0740. Recall work is free at any dealer: check a VIN at nhtsa.gov/recalls or with our VIN check.
Keep going
- P0740: meaning, causes and every car that reports it
- Honda Odyssey reliability by year
- 2003 Honda Odyssey problems and recalls
Other codes Honda Odyssey owners report
U3000 P0730 P0301 P0304 P0303 P219A P0302 P0420 P3400 P3497
P0740 on other cars
Honda Civic (19)
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 P0740 means
The torque converter lockup solenoid has an electrical fault. Fuel economy drops and the car may shudder.
Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.
- Failed TCC solenoid
- Wiring fault
Check the complaints yourself
NHTSA complaint numbers (search them at nhtsa.gov): 11139513, 10607860, 10588182, 10560594, 10510269, 10508126, 10499235, 10481926, 10479205, 10473238, 10472783, 10465677 and 29 more.
Quick answers
What does P0740 mean on a Honda Odyssey?
Torque Converter Clutch Solenoid Circuit/Open. The torque converter lockup solenoid has an electrical fault. Fuel economy drops and the car may shudder.
Which Honda Odyssey years have the most P0740 complaints?
In complaints to NHTSA, owners of the 2003 (12), 2001 (8), 2004 (7) Honda Odyssey named P0740 most (41 complaints in all, 2000–2004). Raw counts, not a failure rate.
What fixes P0740 on a Honda Odyssey?
Owners most often name the transmission (replaced or rebuilt) (19 of 41 complaints), then torque converter. That's what owners wrote, not a diagnosis: have a shop confirm the cause with a scan and tests before replacing parts.
At what mileage does P0740 show up on a Honda Odyssey?
Owners who gave their mileage reported a middle of 104,000 miles; half were between 86,000 and 119,000 (40 owners).
Can I drive my Honda Odyssey with P0740?
Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.
Sources: NHTSA owner complaints that name P0740 on the Honda Odyssey, 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.