U1A01

DTC U1A01, sometimes indicated as U1A0100 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle user network.

DTC Trouble Code Search

Bulletins

Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.

SSM 50829 - EQUIPMENT
LINCOLN: 2021-2022 various ford and lincoln vehicles may exhibit an erroneous diagnostic trouble code (dtc) U1A01:93 stored in the telematics control unit (tcu). This may be due to various software parameters within the tcu. If this dtc is identifie
SSM 50473 - UNKNOWN OR OTHER
LINCOLN: 2021-2022 various ford and lincoln vehicles may exhibit an erroneous diagnostic trouble code (dtc) U1A01:93 stored in the telematics control unit (tcu). This may be due to various software parameters within the tcu. If this dtc is identifie