SpareRadar OBD-II Code Lookup

U1103

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

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What U1103 means, by make 3 makes
  • Audi Vehicle In Production Mode; Production mode active
  • Chevrolet Loss of Serial Communications for Class 2 Devices
  • Volkswagen Vehicle In Production Mode; Production mode active

Each line is that manufacturer's own meaning for U1103. 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 U1103
U
Network
communication between control modules
1
Manufacturer-specific
Defined by the vehicle manufacturer, so the meaning varies between makes.
1
0
3
Fault index
identifies the specific fault
Network Manufacturer-specific
Nearby codes in the U1 range
U1097 manufacturer-specific, 1 make U1098 manufacturer-specific, 1 make U1100 manufacturer-specific, 4 makes U1102 manufacturer-specific, 3 makes U1104 manufacturer-specific, 1 make U1107 manufacturer-specific, 1 make U1108 manufacturer-specific, 1 make U1109 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.