Cleaning Up Lincoln Navigator Connectors

Feb. 15, 2023

Some 2012 Lincoln Navigator vehicles built on or before 11/31/2011 may exhibit an illuminated MIL with DTCs P0135 and P0155. In addition, P0030, P0050, P0053, P0059, P0141 or P0161 may be present.

Some 2012 Lincoln Navigator vehicles built on or before 11/31/2011 may exhibit an illuminated MIL with DTCs P0135 and P0155. In addition, P0030, P0050, P0053, P0059, P0141 or P0161 may be present.

Locate C146 in the right rear corner of the engine compartment. Separate the connector and inspect the pins for signs of contamination, discoloration and/or moisture intrusion. Refer to the wiring diagram section 152-1 in the service manual.

If necessary, replace the connector pigtails on both the female and male sides. Apply Motorcraft Electrical Grease to the connector terminals. Install the original harness retainer on the male connector and secure the harness.

DU2Z-14S411-RA.............female connector pigtail kit

DU2Z-14S411-SA..........male connector pigtail kit

About the Author

Information courtesy of Mitchell 1

Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.

About the Author

Mike Mavrigian | Motor Age Editor

Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of  specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.

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