FORD

SSM 47266

2018-04-25 · NHTSA 10137146

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer summary

Original wording in English

Some 2016-2018 F-650/F-750 vehicles equipped with a 6.7L diesel engine may exhibit an illuminated malfunction indicator lamp (MIL) with DTC P20EE stored in the powertrain control module (PCM). When diagnosing this DTC, if pinpoint test (PPT) RD leads to Step RD27, proceed to Step RD28. This is due to PID NOx12 (NUM) incorrectly reading NOx11 (NUM) in the PCM. The NOx12 (NUM) PID will read the same as the NOx11 (NUM) PID. If the NOx Catalyst Conversion Efficiency Value PID reads less than 60% in Step RD28, replace the nitrogen oxides (NOx) sensor 12 and retest before replacing the selective catalyst reduction (SCR) catalyst. Engineering is investigating, monitor OASIS for updates.

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