P2A01 - O2 Sensor Circuit Range/Performance (Bank 1 Sensor 2) - DTC Chart

P2A01 - O2 SENSOR CIRCUIT RANGE/PERFORMANCE (BANK 1 SENSOR 2) - DTC CHART

Description: The nitrogen oxides bank 1, sensor 2 (NOx12) module estimates the expected exhaust oxygen (O2) content during certain fuel, boost and exhaust gas recirculation (EGR) conditions. This DTC sets when the actual NOx12 sensor O2 signal value is not within the expected range for a calibrated amount of time.
Possible Causes: Corrosion Incorrect connections Contaminated NOx12 sensor Damaged NOx12 sensor
Diagnostic Aids: The presence of this DTC may indicate that the vehicle is operating in derate mode and may experience a loss of power. After repair, the vehicle may still display a system warning message. Drive the vehicle until the system warning message has cleared from the instrument cluster message center.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to Pinpoint Test RD .