U2100moderate severityNetwork
Initial Setup Not Complete
on 2016 Toyota Avalon 3.5L V6 · FWD
What this code means
The vehicle or module initial setup procedure has not been completed. Required after major module replacement.
Symptoms
- Multiple systems in limited mode
- Features not available
- Setup reminder messages
- Module self-tests not passed
Common causes
- Post-replacement setup not done
- Battery disconnect reset setup flags
- Module replacement without completing setup
- Programming interrupted during setup
Diagnostic steps
- Run complete vehicle setup procedure
- Perform module initialization sequence
- Complete all post-replacement steps per service manual
- Verify each system completes self-test
Repair notes
Complete the full post-service initialization procedure per manufacturer service manual.
Other Network codes on this vehicle
U0001
High Speed CAN Communication Bus
U0002
High Speed CAN Communication Bus Performance
U0003
High Speed CAN Communication Bus (+) Open
U0004
High Speed CAN Communication Bus (+) Low
U0005
High Speed CAN Communication Bus (+) High
U0006
High Speed CAN Communication Bus (-) Open
U0007
High Speed CAN Communication Bus (-) Low
U0008
High Speed CAN Communication Bus (-) High
U0009
High Speed CAN Communication Bus Shorted Together
U0010
Medium Speed CAN Communication Bus