July 25, 2019 Service bulletin

Illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P1291, P1292, P0191...

Ford technical service bulletin TSB 19-2231 for 2017-2019 Ford F-250 SD, 2017-2019 Ford F-350 SD and 2017-2019 Ford F-450 SD and others.

Bulletin number: TSB 19-2231
Component: Power train
Summary: Some 2017-2019 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P1291, P1292, P0191 and/or P06A6. This may be due to an engine harness chafe on the powertrain control module (PCM) bracket. Before completing Powertrain Control/Emissions Diagnosis (PC/ED) Manual pinpoint tests, follow the Service Procedure steps.

Owners of these vehicles have filed 131 complaints in the transmission category.

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