DTC P1780: Transmission Control Switch (TCS) Out of Self-Test Range
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2005 Mercury Sable, 2005 Mercury Mountaineer, 2005 Mercury Monterey, 2005 Mercury Montego, and 2005 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.
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: |
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| Diagnostic Aids: | Verify the TCS switch cycles on/off. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to TB1 . | ||