DTC Detecting Condition and Trouble Area: Notes

WARNING: This page is about a different car, the 2006 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.

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.).

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).

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.).