U0447
Invalid Data Received from Gateway Module
2016-2021 Mazda CX-3 2.0L I4 🇩🇪
High SeverityNetwork
Description
Data passing through the gateway module is invalid or being corrupted in translation.
Symptoms
- Multiple module communication errors
- Cross-system faults
- Modules on different buses not synchronizing
- Intermittent multi-system issues
Common Causes
- Gateway module software corruption
- Gateway hardware failure
- CAN bus noise at gateway
- Gateway power supply issue
- Software version incompatibility
Diagnostic Steps
- Check gateway module software version
- Update gateway software
- Test CAN bus quality on all gateway bus connections
- Check gateway power supply
- Inspect gateway module connections
Repair Notes
Reprogram gateway module. If issue persists, replace gateway. Check all bus connections at gateway.
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
U0447 on Other Vehicles
Common Questions
What does code U0447 mean on a 2016-2021 Mazda CX-3?
U0447 stands for "Invalid Data Received from Gateway Module". Data passing through the gateway module is invalid or being corrupted in translation.
What are the symptoms of U0447 on a Mazda CX-3?
Common symptoms of U0447 include: Multiple module communication errors, Cross-system faults, Modules on different buses not synchronizing, Intermittent multi-system issues.
What causes U0447 on a 2016-2021 Mazda CX-3?
Common causes of U0447 include: Gateway module software corruption, Gateway hardware failure, CAN bus noise at gateway, Gateway power supply issue, Software version incompatibility.