Instrument Cluster General Malfunction
2007-2014 Land Rover LR2 3.2L I6
Description
A general fault detected in the instrument cluster module. Multiple gauges or indicators may be affected.
Symptoms
- Multiple gauges not working
- Instrument cluster dark
- Gauges reading incorrectly
- Warning lights erratic
- Odometer display blank
Common Causes
- Instrument cluster internal failure
- Power supply issue to cluster
- Communication bus fault
- Corroded cluster connector
- Software corruption
Diagnostic Steps
- Check cluster power and ground
- Scan cluster for stored codes
- Test CAN bus communication to cluster
- Inspect cluster connector for corrosion
- Attempt cluster self-test if available
Repair Notes
Replace instrument cluster or repair power supply. Cluster may need to be programmed with vehicle mileage.
Related Codes
Other Body Codes
- B0001Driver Frontal Stage 1 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0005Driver Knee Airbag Deployment Circuit
- B0006Passenger Knee Airbag Deployment Circuit
- B0007Rear Left Side Airbag Deployment Circuit
- B0008Rear Right Side Airbag Deployment Circuit
- B0010Driver Side Airbag Deployment
- B0011Driver Side Airbag Deployment Circuit Open
B0400 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
1994-2004 4.0L V8
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
Common Questions
What does code B0400 mean on a 2007-2014 Land Rover LR2?
B0400 stands for "Instrument Cluster General Malfunction". A general fault detected in the instrument cluster module. Multiple gauges or indicators may be affected.
What are the symptoms of B0400 on a Land Rover LR2?
Common symptoms of B0400 include: Multiple gauges not working, Instrument cluster dark, Gauges reading incorrectly, Warning lights erratic, Odometer display blank.
What causes B0400 on a 2007-2014 Land Rover LR2?
Common causes of B0400 include: Instrument cluster internal failure, Power supply issue to cluster, Communication bus fault, Corroded cluster connector, Software corruption.