Lost Communication with Gateway Module A
2007-2014 Land Rover LR2 3.2L I6
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
Land Rover Defender 110
2020-2024 3.0L I6 Mild Hybrid
Land Rover Defender 90
2020-2024 3.0L I6 Mild Hybrid
Land Rover Defender V8
2022-2024 5.0L V8 Supercharged
Land Rover Discovery
2017-2024 3.0L V6 Supercharged
Land Rover Discovery Sport
2015-2024 2.0L I4 Turbo
Land Rover Freelander
1997-2006 2.5L V6
Land Rover LR3
2005-2009 4.4L V8
Land Rover LR4
2010-2016 5.0L V8
Common Questions
What does code U0146 mean on a 2007-2014 Land Rover LR2?
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 Land Rover LR2?
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 2007-2014 Land Rover LR2?
Common causes of U0146 include: Gateway module failure, CAN bus wiring issue, Module power loss, Fuse blown, Software corruption.