P0161 - O2 Heater Circuit (Bank 2, Sensor 2)
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P0161 - O2 HEATER CIRCUIT (BANK 2, SENSOR 2)
| Description: This DTC sets when an open or short circuit is detected or the universal heated oxygen sensor bank 2, sensor 2 (HO2S22) heater current draw exceeds a calibrated limit. | |||
Possible Causes:
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| Diagnostic Aids: Inspect the connectors for signs of damage, water intrusion or corrosion. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST DW: HEATED OXYGEN SENSOR (HO2S) . | ||