2012 Lincoln MKX FWDFACTORY OEM SERVICE PROCEDURE

Component testing procedure

COMPONENT TESTING PROCEDURE CHART

Circuit to test Connect self-powered test light or ohmmeter to terminals Move switch to these positions A good switch will indicate
Switch lock 2, C504a and 2, C504b Unlock Closed circuit
Lock Open circuit
Left front window circuit 2, C504a and 1, 504a Down Closed circuit
2, C504a and 5, C504a Up Closed circuit
2, C504a and 7, C504a One-Touch Up/Down Closed circuit
Right front window circuit 2, C504a and 6, C504a Up Closed circuit
2, C504a and 4, C504a Down Closed circuit
7, C504b and 8, C504a
7, C504b and 4, C504a		 Rest Closed circuit
Left rear window circuit 2, C504a and 5, C504b Down Closed circuit
2, C504a and 1, C504b Up Closed circuit
7, C504b and 5, C504b
7, C504b and 1, C504b		 Rest Closed circuit
Right rear window circuit 2, C504a and 8, C504b Up Closed circuit
2, C504a and 4, C504b Down Closed circuit
7, C504b and 8, C504b
7, C504b and 4, C504b		 Rest Closed circuit
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.