Lost Communication with Gateway Module A
2013-2021 Peugeot 308 1.2L I3 PureTech 🇩🇪
Description
Cannot communicate with the central gateway module that routes data between vehicle networks.
Symptoms
- Multiple systems affected
- Scan tool partial communication
- Cross-network features not working
- Intermittent multi-system faults
Common Causes
- Gateway module failure
- CAN bus wiring issue
- Module power loss
- Fuse blown
- Software corruption
Diagnostic Steps
- Check gateway module fuse
- Test power and ground
- Check CAN wiring on all bus connections
- Try gateway module reprogramming
- Test individual bus segments
Repair Notes
Gateway module connects multiple CAN buses. Failure affects cross-bus communication. Common on German vehicles.
Related Codes
Other Network Codes
- U0001High Speed CAN Communication Bus
- U0002High Speed CAN Communication Bus Performance
- U0003High Speed CAN Communication Bus (+) Open
- U0004High Speed CAN Communication Bus (+) Low
- U0005High Speed CAN Communication Bus (+) High
- U0006High Speed CAN Communication Bus (-) Open
- U0007High Speed CAN Communication Bus (-) Low
- U0008High Speed CAN Communication Bus (-) High
- U0009High Speed CAN Communication Bus Shorted Together
- U0010Medium Speed CAN Communication Bus
U0146 on Other Vehicles
Peugeot 108
2014-2021 1.0L I3 VTi 72
Peugeot 108
2014-2021 1.2L I3 PureTech 82
Peugeot 2008
2019-2024 1.2L I3 PureTech
Peugeot 2008
2019-2024 Electric
Peugeot 2008
2019-2025 1.2L I3 Turbo PureTech 130
Peugeot 2008
2020-2025 Electric e-2008 50kWh
Peugeot 2008 PL
2019-2025 1.2L I3 Turbo PureTech 130
Peugeot 2008 PL
2019-2025 1.5L I4 Diesel BlueHDi 110
Common Questions
What does code U0146 mean on a 2013-2021 Peugeot 308?
U0146 stands for "Lost Communication with Gateway Module A". Cannot communicate with the central gateway module that routes data between vehicle networks.
What are the symptoms of U0146 on a Peugeot 308?
Common symptoms of U0146 include: Multiple systems affected, Scan tool partial communication, Cross-network features not working, Intermittent multi-system faults.
What causes U0146 on a 2013-2021 Peugeot 308?
Common causes of U0146 include: Gateway module failure, CAN bus wiring issue, Module power loss, Fuse blown, Software corruption.