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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 >> P2C28 - Fuel Injector Group B Supply Sense Circuit High

P2C28 - Fuel Injector Group B Supply Sense Circuit High

DTC DESCRIPTION P2C28 - FUEL INJECTOR GROUP B SUPPLY SENSE CIRCUIT HIGH

Description:  This DTC sets when the INJRLY circuit voltage is more than the calibrated threshold. This DTC also sets when the INJPWRM circuit voltage is more than the calibrated threshold.
Possible Causes: 
  • INJPWRM circuit short to voltage
  • INJRLY circuit short to voltage
  • Damaged injector relay
Diagnostic Aids:   
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test KG.