U3004moderate severityNetwork
Module Identification Number Not Programmed
on 2020 Mazda Mazda3 2.0L I4 · AWD
What this code means
The module serial number or identification has not been programmed during setup.
Symptoms
- Module not fully recognized on network
- Security features limited
- Module pairing incomplete
- System reporting module mismatch
Common causes
- New module not fully programmed
- Serial number transfer not completed
- Module pairing procedure skipped
- Tool did not complete ID programming
Diagnostic steps
- Perform module identification programming
- Complete module pairing procedure
- Transfer serial number data
- Verify ID stored correctly
- Complete security authorization if required
Repair notes
Program module identification using manufacturer tool. Some modules require online authorization for ID programming.
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