P1780

Transmission System MIL Fault

DTC P1780, sometimes indicated as P178000 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the transmission (gearbox) causing transmission system mil fault.

  • P1780: Transmission System MIL Fault
  • P1780 00: Throttle position (TP) sensor, traction control - circuit malfunction

DTC Trouble Code Search
Bulletins

Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.

Consumer Complaints for this DTC



2010 FORD EDGE with 60000.0 miles

Car jerks and anti lock/traction control system tries to engage during turns to left pulled codes from car they were P1650 power steering ,dealer said this was tied to anti roll and also control transmission and brake system and would cost me 930.00 to repair, next code was P1703 brake switch,then code P1780 transmission control. Its obvious Ford motor company knows theirs a problem with this type of auto..Research on internet show this same problem since 2007 or so to present!
TRACTION CONTROL SYSTEM, POWER TRAIN STEERING



2003 TOYOTA COROLLA

My new '03 Toyota Corolla ce (17715 miles as of 01/19/04) has some serious defect that makes it stall. At least 5 times, from october 20, 2003 to january 22, 2004, we had to bring it to the dealership for the same problem. It already had to be towed twice, as it would sometimes stop in traffic, putting the lives of my family in danger. So far, none of the Toyota dealership's technicians have ben able to find the problem. I was told that diagnostic tests performed on this car have shown unusual codes unfamiliar to Toyota technicians. One such code, that they are unable to interpret, is "P1780. They thought the problem was the ecu switch. They replaced it in november 2003, and since then the car has stopped twice. On january 24, 2004, less than a week after it was delivered to us following repair for the same problems, it stopped again, became inoperable, and had to be towed to the dealership. At each occurrence, the engine indicator light, and in some cases the "low engine" pressure light would stay on permanently, the steering wheel would become very hard to maneuver, and then the car would come to a sudden halt. To restart it, it would take turning the ignition key on several times. My biggest fear is that it may someday stop suddenly (as it usually does) in a busy intersection or on a highway, thereby putting at risk the lives of my whole family. This problem needs some urgent attention. *la
ENGINE AND ENGINE COOLING:ENGINE,

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