P0402 on the 2017 Ford F-250
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
Nobody has written a description of this code yet.
| TSB 19-2343 | 2019-12-04. Service bulletin. This message is superseding TSB 19-2271 to update the Issue, Action and Service Procedure. Some 2017-2018 F-Super Duty and 2019 F-Super Duty F-450/F-550 Chassis Cab only vehicles equipped with a 6.7L engine built on or before 9-Jan-2019 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P2074, P0401, P0402 and/or P0170. This may be due to various strategies within the powertrain control module (PCM) software. To correct the condition, follow the Service Procedure steps to reprogram the PCM and perform a mass air flow (MAF) parameter reset. |
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| TSB 19-2271 | 2019-10-04. Service bulletin. Some 2017-2019 F-Super Duty vehicles equipped with a 6.7L engine built on or before 9-Jan-2019 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P2074, P0401, P0402 and/or P0170. This may be due to various strategies within the powertrain control module (PCM) software. To resolve this condition, follow the Service Procedure steps to reprogram the PCM and perform a mass air flow (MAF) parameter reset. |
| TSB19-2160 | 2019-06-05. Service bulletin. Some 2017-2019 F-Super Duty vehicles equipped with a 6.7L engine built on or before 9-Jan-2019 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P2074, P0401, P0402 and/or P0170. This may be due to various strategies within the powertrain control module (PCM) software. To resolve this condition, follow the Service Procedure steps to reprogram the PCM and perform a mass air flow (MAF) parameter reset. Follow the service procedure steps to correct the condition. |
| TSB 16-0152 | 2017-03-20. Service bulletin. SOME 2017 F-SUPER DUTY VEHICLES EQUIPPED WITH A 6.7L ENGINE BUILT ON OR BEFORE 24-OCT-2016 MAY EXHIBIT DTC P0402 IN THE POWERTRAIN CONTROL MODULE (PCM). THIS MAY BE DUE TO A MASS AIR FLOW (MAF) SENSOR ADAPTION FEATURE WHICH HAS NOT YET LEARNED THE APPROPRIATE VALUES FOR THE VEHICLE OPERATING CONDITION. FOLLOW THE SERVICE PROCEDURE STEPS TO CORRECT THE CONDITION. |
| SSM 46115 | 2017-02-07. Service bulletin. SOME 2017 F-SUPER DUTY VEHICLES EQUIPPED WITH A 6.7L ENGINE MAY EXHIBIT AN ILLUMINATED MIL WITH DTC P0402 IN THE POWERTRAIN CONTROL MODULE (PCM). WHEN PERFORMING PINPOINT TEST W IN THE POWERTRAIN CONTROL/EMISSIONS DIAGNOSIS (PC/ED) MANUAL, IF DIRECTED TO PERFORM STEP W10, DISREGARD AND PROCEED TO STEP W11. INTEGRATED DIAGNOSTIC SYSTEM (IDS) CURRENTLY DISPLAYS INCORRECT DATA FOR PIDS EGR_A_ACT (PER) AND EGRPDES THAT STEP W10 USES. THE IDS SCAN TOOL WILL BE UPDATED TO CORRECT THIS CONCERN. |
5 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.