U2100
Initial Setup Not Complete
2016-2021 Mazda CX-3 2.0L I4
Moderate SeverityNetworkGeneric (SAE)
Description
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.
Related Codes
Other Network Codes
- U0001High Speed CAN Communication Bus
- U0001High Speed CAN Communication Bus
- U0002High Speed CAN Communication Bus Performance
- U0002High Speed CAN Communication Bus Performance
- U0003High Speed CAN Communication Bus (+) Open
- U0003High Speed CAN Communication Bus (+) Open
- U0004High Speed CAN Communication Bus (+) Low
- U0004High Speed CAN Communication Bus (+) Low
- U0005High Speed CAN Communication Bus (+) High
- U0005High Speed CAN Communication Bus (+) High
U2100 on Other Vehicles
Common Questions
What does code U2100 mean on a 2016-2021 Mazda CX-3?
U2100 stands for "Initial Setup Not Complete". The vehicle or module initial setup procedure has not been completed. Required after major module replacement.
What are the symptoms of U2100 on a Mazda CX-3?
Common symptoms of U2100 include: Multiple systems in limited mode, Features not available, Setup reminder messages, Module self-tests not passed.
What causes U2100 on a 2016-2021 Mazda CX-3?
Common causes of U2100 include: Post-replacement setup not done, Battery disconnect reset setup flags, Module replacement without completing setup, Programming interrupted during setup.