SSM 51491

Service Bulletin Details

Public Details for: SSM 51491

Some 2021-2022 f-super duty vehicles may exhibit an illuminated malfunction indicator lamp (mil) with diagnostic trouble code (dtc) P0073 for the ambient air temperature sensor stored in the powertrain control (pcm). When performing pinpoin


- 2023 -

Models from 2023
2023 FORD F-250 SD
2023 FORD F-350 SD
2023 FORD F-450 SD
2023 FORD F-550 SD 
SSM 51491
2021-2022 F-Super Duty - Illuminated MIL With P0073 - Update To PPT BG
For Ambient Air Temperature Sensor
Some 2021-2022 F-Super Duty vehicles may exhibit an illuminated malfunction indicator lamp (MIL) with
diagnostic trouble code (DTC) P0073 for the ambient air temperature sensor stored in the powertrain
control (PCM). When performing pinpoint test BG in Workshop Manual (WSM), Section 413-01, the
ambient air temperature sensor/outside air temperature display reset procedure has been added to the
Ford Diagnostic Repair System (FDRS) diagnostic scan tool. Depending on how the vehicle is equipped,
run the FCIM or HVAC – Reset the Outside Air Temperature Sensor Learned Values application. Clear
DTCs and retest after performing the reset procedure.

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