P1780Transmission control switch out of self-test range
- Ford code · Engine
- How the car detects it
- During the scan-tool self-test the engine computer didn't see the expected signal from the transmission control switch, the button or selector switch the driver uses to change the automatic gearbox mode (for example overdrive cancel or manual shifting). Ford sends the diagnosis to the gearbox external controls section.
- What you may notice
- Usually none; set only during a workshop self-test
- Likely causes
- PossibleSwitch operated or held during the self-test
- RareFaulty switch or its wiring
- Sources
Backed by at least two independent sources.
From Obdaryn's Ford pack, exactly as the app shows it, with the public sources above. Guidance only; confirm with a workshop.