SpareRadar OBD-II Code Lookup

U1001

Set by the manufacturer, so it means different things on different makes. 3 makes in the table below.

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What U1001 means, by make 3 makes
  • Audi Central control unit for convenience systems-J393 implausible signal D001 53249
  • Chevrolet U1254 Loss of XXX Communications
  • Volkswagen Central control unit for convenience systems-J393 implausible signal D001 53249

Each line is that manufacturer's own meaning for U1001. They are genuinely different faults, not rewordings of one, so a meaning listed against one make says nothing about the others. If your make is not listed, we do not hold it - your manufacturer's service information is the authority.

Code structure U1001
U
Network
communication between control modules
1
Manufacturer-specific
Defined by the vehicle manufacturer, so the meaning varies between makes.
0
0
1
Fault index
identifies the specific fault
Network Manufacturer-specific
Nearby codes in the U1 range
U1000 manufacturer-specific, 3 makes U1002 manufacturer-specific, 3 makes U1003 manufacturer-specific, 4 makes U1004 manufacturer-specific, 3 makes U1006 manufacturer-specific, 4 makes U1007 manufacturer-specific, 3 makes U1008 manufacturer-specific, 3 makes U1009 manufacturer-specific, 1 make

Manufacturer code meanings from kierandrewett/obd (b56a07a), used under the MIT licence. Copyright (c) Kieran Drewett. SpareRadar is not affiliated with the dataset's authors.