P1780

DTC P1780: Problem in Shift Control System

NOTE: Record all freeze data and review General Troubleshooting Information before you troubleshoot.

1. Clear the DTC with the HDS.
2. Test-drive the vehicle for several minutes in the D position through all five gears. Slow down and stop the wheels.
3. Retest-drive the vehicle for several minutes in the D position through all five gears. Slow down and stop the wheels.
4. Check for other DTCs indicated simultaneous with the code P1780.

NOTE: DTC P1780 means there is one or more A/T DTCs about the shift control system.

Are there other DTCs?
YES - Perform the troubleshooting for the indicated code(s).
NO - Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM.