DTC P1780: Shift Control System (Transmission Default Mode)

WARNING: This page is about a different car, the 2013 Honda Fit, 2012 Honda Fit, 2011 Honda Fit, 2010 Honda Fit, and 2009 Honda Fit. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Before you troubleshoot, record all freeze data and any on-board snapshot with the HDS, and review General Troubleshooting Information (see GENERAL TROUBLESHOOTING INFORMATION ).
This code is caused by a hydraulic control system problem (DTCs P1746 and P1747), and stored simultaneously with DTC P1746 and/or P1747.

Clear the DTC with the HDS.
Test-drive the vehicle with the shift lever in D, and let the transmission shift through all five gears. Then slow down to a stop.
Check whether the DTC P1746 or P1747 is indicated in the DTCs/Freeze Data in A/T Mode Menu with the HDS.
Is DTC P1746 or P1747 indicated?

YES -
- Troubleshoot DTC P1746 (see DTC P1746: HYDRAULIC CONTROL SYSTEM (CUT VALVE A STUCK OFF OR CUT VALVE B STUCK ON); DTC P1747: HYDRAULIC CONTROL SYSTEM (CUT VALVE A STUCK ON OR CUT VALVE B STUCK OFF) ).
- Troubleshoot DTC P1747 (see DTC P1746: HYDRAULIC CONTROL SYSTEM (CUT VALVE A STUCK OFF OR CUT VALVE B STUCK ON); DTC P1747: HYDRAULIC CONTROL SYSTEM (CUT VALVE A STUCK ON OR CUT VALVE B STUCK OFF) ).
NO -Intermittent failure, the system is OK at this time.