P0140 - O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2) - DTC Chart
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P0140 - O2 SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 1 SENSOR 2) - DTC CHART
| Description: The nitrogen oxides bank 1, sensor 2 (NOx12) module monitors the NOx12 sensor oxygen (O2) signal for a lack of movement concern. This DTC sets when the actual O2 signal value does not change from the default O2 signal value. |
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Possible Causes:
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| Diagnostic Aids: | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to Pinpoint Test RD . | ||