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DTC Detecting Condition and Trouble Area: Notes

DTC TROUBLE DETECTING CONDITION

DTC Detecting Condition Trouble Area
DTC P0781: 
When one of the following condition was detected while vehicle running at 2 km/h (1.5 mile/h) or more in "D" range after engine being warmed up.
  • 1st gear ratio is detected although TCM command is for 2nd gear and 4th gear is detected although TCM command is for 4th gear (See table below *1).

Or
  • 1st gear ratio is detected although TCM command is for 2nd gear and Neutral gear is detected although TCM command is for 5th gear (See table below *2).

(2 driving cycle detection logic)
  • Mechanical malfunction of 1-2 shift valve.
  • Malfunction of valve body assembly.
  • Mechanical malfunction of automatic transmission (clutch, brake or gear etc.).