P0054 - Ho2S Heater Resistance (Bank 1, Sensor 2)
WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
P0054 - HO2S HEATER RESISTANCE (BANK 1, SENSOR 2)
| 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 DW . | ||