P23B7 - NOX Sensor Heater Control Circuit Range/Performance (Bank 1 Sensor 3)
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DTC DESCRIPTION P23B7 - NOX SENSOR HEATER CONTROL CIRCUIT RANGE/PERFORMANCE (BANK 1 SENSOR 3)
| Description: This DTC sets when the nitrogen oxides bank 1, sensor 3 (NOx13) sensor does not reach the required operating temperature in a calibrated amount of time or when the NOx13 module is not able to maintain the required operating temperature after the NOx13 sensor is warm. | |||
Possible Causes:
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| 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 . | ||