Lost Communication with Door Control Module A
2017-2020 Tesla Model 3 Standard Range Plus Single Motor RWD
Description
Cannot communicate with door control module A (usually driver door).
Symptoms
- Power windows not working
- Door locks inoperative from that door
- Mirror control not working
Common Causes
- Module failure
- Wiring in door jamb broken
- Water damage in door
- Connector issue
Diagnostic Steps
- Inspect door jamb wiring
- Check for water in door
- Test module power
- Check connector
Repair Notes
Inspect door jamb wiring harness - flexing breaks wires over time.
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
U0199 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 U0199 mean on a 2017-2020 Tesla Model 3?
U0199 stands for "Lost Communication with Door Control Module A". Cannot communicate with door control module A (usually driver door).
What are the symptoms of U0199 on a Tesla Model 3?
Common symptoms of U0199 include: Power windows not working, Door locks inoperative from that door, Mirror control not working.
What causes U0199 on a 2017-2020 Tesla Model 3?
Common causes of U0199 include: Module failure, Wiring in door jamb broken, Water damage in door, Connector issue.