P0053 - Ho2S Heater Resistance (Bank 1, Sensor 1)
WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. 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 amperage requirements too low or high in HO2S heater control circuit (bank 1, sensor 1). | |||
| Possible Causes: | See the possible causes for DTC P0135. | |||
| Diagnostic Aids: | See the diagnostic aids for DTC P0135. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory | |
| All | refer to PINPOINT TEST DW . | |||