Some 2023-2024 Mustang Mach-E/Corsair and 2024 Mustang vehicles may exhibit an audio control module (ACM) programming failure with a message displayed in the Ford Diagnosis and Repair System (FDRS) scan tool indicating Procedure Unsuccessful-Flash Software Failed To Flash. This may be due to the ACM programming routine. To correct this condition, download and click the refresh icon located next to the run icon to update the ACM - Programmable Module Installation (PMI) app. For claiming, use causal part 18C869 and applicable labor operations in Section 11 of the Service Labor Time Standards (SLTS) Manual.
