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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls (Except Diesel & Hybrid) - Powertrain DTC Descriptions - DTC P0001 - P0192 >> DTC P0053: Ho2S Heater Resistance (Bank 1, Sensor 1)

DTC P0053: Ho2S Heater Resistance (Bank 1, Sensor 1)

P0053 - HO2S HEATER RESISTANCE (BANK 1, SENSOR 1)

Description:  This DTC sets when the heater current requirements are too low or too high in the heated oxygen sensor (HO2S) heater control circuit.
Possible Causes: 
  • VPWR circuit open
  • HO2S heater circuit open
  • HO2S heater circuit short
  • Damaged HO2S heater
Diagnostic Aids:  Inspect the connectors for signs of damage, water ingress, or corrosion.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
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Transit Connect		 GO to PINPOINT TEST DW .
All others GO to PINPOINT TEST DZ .
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