U0300moderate severityNetwork
Internal Control Module Software Incompatibility
on 2015 Audi A8 3.0L Supercharged V6 ยท AWD
What this code means
Software version mismatch between communicating modules causing data interpretation errors.
Symptoms
- Warning lights on
- Systems behaving erratically
- Features not working correctly after update
- Communication errors between modules
Common causes
- Module software not updated together
- Partial software update
- Incorrect software version flashed
- Aftermarket module with wrong software
Diagnostic steps
- Check software versions on all modules
- Compare to required version table
- Perform full vehicle software update
- Check for TSBs regarding software updates
Repair notes
Perform complete vehicle software update. All related modules must be updated together.
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01317
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01318
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01321
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U0001
High Speed CAN Communication Bus