Lost Communication with Parking Brake Control Module
2017-2020 Tesla Model 3 Standard Range Plus Single Motor RWD
Description
Cannot communicate with the electronic parking brake module.
Symptoms
- Parking brake warning light
- Electronic parking brake inoperative
- Brake warning message
- Cannot release parking brake
- Hill hold not working
Common Causes
- EPB module failure
- CAN bus wiring
- Module power loss
- Fuse blown
- EPB actuator failure
Diagnostic Steps
- Check EPB module fuse
- Test module power and ground
- Check CAN wiring
- Try manual EPB release procedure
- Test EPB actuator motors
Repair Notes
If parking brake is stuck engaged, use manual release procedure first. 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
U0127 on Other Vehicles
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2024-2024 Cyberbeast Tri Motor AWD
Tesla Cybertruck
2024-2024 Dual Motor AWD
Tesla Cybertruck
2024-2024 Single Motor RWD
Tesla Model 3
2017-2020 Long Range Dual Motor AWD
Tesla Model 3
2017-2020 Performance Dual Motor AWD
Tesla Model 3
2021-2024 Long Range Dual Motor AWD
Tesla Model 3
2021-2024 Performance Dual Motor AWD
Tesla Model 3
2021-2024 Standard Range Single Motor RWD
Common Questions
What does code U0127 mean on a 2017-2020 Tesla Model 3?
U0127 stands for "Lost Communication with Parking Brake Control Module". Cannot communicate with the electronic parking brake module.
What are the symptoms of U0127 on a Tesla Model 3?
Common symptoms of U0127 include: Parking brake warning light, Electronic parking brake inoperative, Brake warning message, Cannot release parking brake, Hill hold not working.
What causes U0127 on a 2017-2020 Tesla Model 3?
Common causes of U0127 include: EPB module failure, CAN bus wiring, Module power loss, Fuse blown, EPB actuator failure.