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Home >> Mercury >> 2009 >> Sable Premier, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1255 (Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid)) >> DTC Diagnosis >> DTC P1780: - Transmission Control Switch (TCS) Out Of Self-Test Range

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

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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 .