DTC P0030: Ho2S Heater Control Circuit (Bank 1, Sensor 1)
P0030 - HO2S HEATER CONTROL CIRCUIT (BANK 1, SENSOR 1)
| For Vehicles With Universal HO2S | |||
| Description: | The powertrain control module (PCM) monitors the heater in the universal heated oxygen sensor (HO2S) for correct operation. The PCM controls the heater on and off duty cycle to maintain a calibrated temperature. The test fails when the sensor does not warm up to the required temperature in a calibrated amount of time. The test also fails when the PCM is not able to maintain the required temperature after the sensor is warm. | ||
| Possible Causes: |
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| Diagnostic Aids: | Inspect the connectors for signs of damage, water ingress, or corrosion. | ||
| For Vehicles With HO2S (4-pin) | |||
| Description: | The powertrain control module (PCM) monitors the heater in the heated oxygen sensor (HO2S) for correct operation. The PCM controls the heater on and off duty cycle to maintain a calibrated temperature. The test fails when the sensor does not warm up to the required temperature in a calibrated amount of time. The test also fails when the PCM is not able to maintain the required temperature after the sensor is warm. | ||
| 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 |
| Edge, Escape/Mariner 2.5L Automatic Transmission, Escape/Mariner 3.0L, E-Series 4.6L, E-Series 5.4L, Expedition, Explorer, F-150, Flex, F-Series Super Duty, Fusion 2.5L, Fusion 3.0L, Milan, MKS, MKT, MKX, Mustang, Navigator, Taurus | GO to PINPOINT TEST DZ . | ||
| All others | GO to PINPOINT TEST DW . | ||