P1780 - Transmission Control Switch Out Of Self-Test Range
WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2004 Mercury Sable, 2004 Mercury Mountaineer, 2004 Mercury Monterey, 2004 Mercury Marauder, and 2004 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
P1780 - TRANSMISSION CONTROL SWITCH OUT OF SELF-TEST RANGE
| Description: | During 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 B: Transmission Control Switch TCS/Transmission Control Indicator Lamp TCIL STEP TB1 | ||