Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Ford >> 2020 >> Edge ST-Line, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Powertrain DTC Descriptions (Except Diesel & Hybrid) - DTC P0610 - P2149 >> DTC P1127 - Exhaust Temperature Out Of Range, O2 Sensor Tests Not Completed

DTC P1127 - Exhaust Temperature Out Of Range, O2 Sensor Tests Not Completed

DTC DESCRIPTION P1127 - EXHAUST TEMPERATURE OUT OF RANGE, O2 SENSOR TESTS NOT COMPLETED

Description:  The heated oxygen sensor (HO2S) monitor uses an exhaust temperature model to determine when the universal HO2S heaters are cycled ON. This DTC sets when the inferred exhaust temperature is below a minimum calibrated value.
Possible Causes: 
  • Engine not operating long enough before carrying out the key ON, engine running (KOER) self-test
  • Exhaust system too cool
Diagnostic Aids:  Monitor the universal HO2S heater PIDs to determine the ON or OFF state. The DTC P1127 is present if the exhaust is not hot.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST DZ .
scientia non olet · About Mike's Workshop Manuals