6.7L – Illuminated MIL With DTCs P1291, P1292, P0191 And/Or P06A6 – Engine Harness Chafe – 2017-2019 Ford F-Super Duty
NHTSA ID Number: 10163577 Manufacturer Communication Number: TSB 19-2231 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 … Read more