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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 >> P1290 - Cylinder Head Temperature Sensor Circuit Low

P1290 - Cylinder Head Temperature Sensor Circuit Low

DTC DESCRIPTION P1290 - CYLINDER HEAD TEMPERATURE SENSOR CIRCUIT LOW

Description:  This DTC sets when a CHT circuit short to ground concern is present.
Possible Causes: 
  • CHT circuit short to ground
  • Damaged cylinder head temperature (CHT) wiring harness or connector
  • Damaged CHT sensor
Diagnostic Aids:  The DTC P0117 may also be reported when this DTC sets. Either of these DTCs illuminates the malfunction indicator lamp (MIL).
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test DL.