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Home >> Ford >> 2021 >> Expedition XL, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Memory Modules >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) >> Diagnostic Trouble Code (DTC) Charts And Descriptions >> P1101 - Mass Air Flow Sensor Out Of Self Test Range

P1101 - Mass Air Flow Sensor Out Of Self Test Range

DTC DESCRIPTION P1101 - MASS AIR FLOW SENSOR OUT OF SELF TEST RANGE

Description:  This DTC sets when during ignition ON, engine OFF, the mass air flow (MAF) sensor output signal is greater than a calibrated limit or during ignition ON, engine running, the MAF output signal is not within the calibrated range.
Possible Causes: 
  • Low battery charge
  • MAF sensor partially connected
  • MAF sensor contamination
  • Damaged MAF sensor
  • Intake air leaks
Diagnostic Aids:  Diagnose circuit DTCs before range or performance DTCs.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test DC.