U05A1 - NOX Sensor A Received Invalid Data From ECM/Pcm
WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
U05A1 - NOX SENSOR A RECEIVED INVALID DATA FROM ECM/PCM
| Description: The PCM continuously monitors the controller area network (CAN) for messages from nitrogen oxide (NOx) module. This DTC sets when the PCM does not receive the NOx 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. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST RD . | ||