# P0402 on the 2017 Ford F\-350

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.

## Bulletins for this model year that name P0402

- [10168760](https://open.wenmarpro.com/bulletins/10168760), 2019-12-04: 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.
- [10165700](https://open.wenmarpro.com/bulletins/10165700), 2019-10-04: 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.
- [10160813](https://open.wenmarpro.com/bulletins/10160813), 2019-06-05: 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.
- [10095962](https://open.wenmarpro.com/bulletins/10095962), 2017-03-20: 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.
- [10090655](https://open.wenmarpro.com/bulletins/10090655), 2017-02-07: 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.