U0140
Lost Communication with Body Control Module
2021-2024 Dacia Spring Electric 🇩🇪
High SeverityNetwork
Description
Cannot communicate with the BCM.
Symptoms
- Multiple electrical features inoperative
- Lighting issues
- Lock/unlock not working
- Warning lights on
Common Causes
- BCM power failure
- CAN bus issue
- BCM failure
- Water damage
Diagnostic Steps
- Check BCM fuses
- Test power and ground
- Check CAN wiring
- Inspect for water damage
Repair Notes
Check for water intrusion (common BCM failure cause). Check fuses.
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
U0140 on Other Vehicles
Dacia Bigster
2025-2025 1.2L I3 Turbo TCe 130
Dacia Bigster
2025-2025 1.6L I4 Hybrid 155
Dacia Duster
2017-2024 1.0L I3 TCe
Dacia Duster
2017-2024 1.3L I4 TCe
Dacia Duster
2017-2024 1.5L I4 dCi
Dacia Duster
2024-2025 1.0L I3 TCe 100 LPG
Dacia Duster
2024-2025 1.2L I3 Hybrid TCe 130
Dacia Duster PL
2018-2025 1.0L I3 Turbo TCe 100
Common Questions
What does code U0140 mean on a 2021-2024 Dacia Spring?
U0140 stands for "Lost Communication with Body Control Module". Cannot communicate with the BCM.
What are the symptoms of U0140 on a Dacia Spring?
Common symptoms of U0140 include: Multiple electrical features inoperative, Lighting issues, Lock/unlock not working, Warning lights on.
What causes U0140 on a 2021-2024 Dacia Spring?
Common causes of U0140 include: BCM power failure, CAN bus issue, BCM failure, Water damage.