LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2006 >> Escape Hybrid, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid)) >> DTC Diagnosis >> DTC P0053: Ho2S Heater Resistance (Bank 1, Sensor 1)

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

WARNING: This page is about a different variant/trim than selected.
P0053 - HO2S HEATER RESISTANCE (BANK 1, SENSOR 1)

Description:  Heater current requirements too low or high in the heated oxygen sensor (HO2S) heater control circuit.
Possible Causes: 
  • VPWR circuit open
  • HO2S heater circuit open
  • HO2S heater circuit short in the harness
  • 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 
All GO to Pinpoint Test DW .