DTC P0053: - Ho2S Heater Resistance (Bank 1, Sensor 1)
DTC 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 |
| E-Series 4.6L, E-Series 5.4L, Expedition, F-150, Flex, MKS, Navigator, Sable PZEV, Taurus PZEV, Taurus X PZEV |
GO to Pinpoint Test DZ . | ||
| All others | GO to Pinpoint Test DW . | ||