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P1289 - Cylinder Head Temperature Sensor Circuit High

DTC DESCRIPTION P1289 - CYLINDER HEAD TEMPERATURE SENSOR CIRCUIT HIGH

Description:  This DTC sets when a CHT circuit open concern is present.
Possible Causes: 
  • CHT circuit open
  • CHT circuit short to voltage
  • Damaged cylinder head temperature (CHT) sensor wiring harness or connector
  • Damaged CHT sensor
Diagnostic Aids:  The DTC P0118 may also be reported when this DTC sets. Either of these DTCs illuminate the malfunction indicator lamp (MIL).
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test DL.