Question

Kindly provide information regarding Code P1700 and P1780 for the 2005 Ford Explorer XLT 4.0L?

Answer 1

P1780 Transmission control switch out of self range test

This is during a KOER (key on engine running) test that the transmission control switch was not cycled  during the test.

Answer 2

P1700 Ford Code - Transmission System Problems
Read more: https://www.autocodes.com/p1700_ford.html

P1780 Ford Code - Transmission Control Switch Circuit is Out of Self-Test Range
Read more: https://www.autocodes.com/p1780_ford.html