DTC P0053: Ho2S Heater Resistance (Bank 1, Sensor 1)
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, 2011 Ford Fusion, 2010 Mercury Milan, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
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: |
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| 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 DZ . | ||