DTC P0155 - O2 Sensor Heater Circuit (Bank 2 Sensor 1)
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P0155 - O2 SENSOR HEATER CIRCUIT (BANK 2 SENSOR 1)
| Description: | This DTC sets when an open or short circuit is detected or the universal heated oxygen sensor bank 2, sensor 1 (HO2S21) 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 DZ . | ||