P2A00 - O2 Sensor Circuit Range/Performance (Bank 1 Sensor 1)
P2A00 - O2 SENSOR CIRCUIT RANGE/PERFORMANCE (BANK 1 SENSOR 1)
| Description: The nitrogen oxide (NOx) module estimates the expected exhaust oxygen (O2) content during certain fuel, boost and exhaust gas recirculation (EGR) conditions. This DTC sets when the actual NOx sensor O2 signal value is not within the expected range for a calibrated amount of time. | |||
Possible Causes:
|
|||
| Diagnostic Aids: The presence of this DTC may indicate that the vehicle is operating in derate mode and may experience a loss of power. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST RD . | ||