Inoperative four wheel drive system and/or diagnostic trouble code (DTC) C00A1 in the all-wheel drive...

Bulletin number

SSM 51659

Component

Electrical system

Summary

Some 2023 F-Super Duty vehicles built on or before 09-May-2023 may exhibit an inoperative four wheel drive system and/or diagnostic trouble code (DTC) C00A1 in the all-wheel drive (AWD) module. Prior to beginning diagnostics, inspect ground location G239 for proper tightness of 6 lb-ft (8 Nm). G239 is located behind the right-hand side front scuff plate near the body control module (BCM). If ground is found to be properly tightened, refer to Workshop Manual (WSM) for any additional diagnosis.

Owners of these vehicles have filed 28 complaints in the electrical category.