What is a P1780 code?
Error Code P1780 is defined as Transmission Control Switch Circuit is Out of Self-Test Range. This error code is a manufacturer-specific trouble code, meaning it does not apply to all vehicles makes. Rather, it applies only to specific vehicle makes, such as Ford and Toyota.
What does the transmission control switch do?
The Transmission Control Switch (TCS) is a momentary contact switch that is located on the end of the transmission control selector lever. Pushing the TCS will either disengage or engage the overdrive function of the transmission.
What are the possible causes of a p1780 Ford?
P1780 Ford Possible Causes. Transmission Control Switch (TCS) not cycled during the self-test. Faulty Transmission Control Switch. Transmission Control Switch harness is open or shorted. Transmission Control Switch circuit poor electrical connection.
What should resistance be on Ford p1780 fuse?
Check the fuse. With the key in the off position, check the resistance on the fuse. If it’s less than 5 ohms, it needs to be replaced. Check the circuit for a short to the ground. Disconnect the PCM and then measure the resistance between PIN 41 and ground — the resistance should be greater than 10,000 ohms.
How to decoded Blue Springs Ford p1780 decoded?
With the key in off position, disconnect the central junction box and transmission control switch. Measure the resistance between the CJB fuse 2.13 Pin 10 and power side of the TCS Pin 2 in the harness connector. Now measure the resistance between CJB fuse 2.13 Pin 10 and the power side of the TCS Pin 1 in the harness connector.
Where is the Transmission Control switch located on a Ford?
The Transmission Control Switch (TCS) is a momentary contact switch that is located on the end of the transmission control selector lever. Pushing the TCS will either disengage or engage the overdrive function of the transmission.