DTC P1780: - Transmission Control Switch (TCS) Out Of Self-Test Range

DTC P1780: - TRANSMISSION CONTROL SWITCH (TCS) OUT OF SELF-TEST RANGE

Description:	During key on engine running (KOER) self-test the TCS must be cycled, or a DTC is set.
Possible Causes:	TCS not cycled during the self-test. TCS circuit short or open Damaged TCS switch
Diagnostic Aids:	Verify the TCS switch cycles on/off.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to Pinpoint Test TB .