U05A1 - NOX Sensor A Received Invalid Data From ECM/PCM
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DTC DESCRIPTION U05A1 - NOX SENSOR A RECEIVED INVALID DATA FROM ECM/PCM
| Description: This DTC sets when the PCM does not receive the nitrogen oxides bank 1, sensor 1 (NOx11) module message within the defined amount of time. | |||
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 . | ||