Theft Deterrent System Starter Disable
2017-2020 Tesla Model 3 Standard Range Plus Single Motor RWD 🇨🇦
Description
The theft deterrent system has disabled the starter circuit due to a detected theft condition or system malfunction.
Symptoms
- Engine will not crank
- Security light on solid
- Key turns but starter does not engage
- No-crank no-start condition
Common Causes
- Theft system triggered by incorrect key
- System malfunction falsely detecting theft
- BCM starter relay driver failure
- Immobilizer-theft system communication error
Diagnostic Steps
- Verify key is correct for vehicle
- Perform theft system reset procedure
- Scan BCM and immobilizer codes
- Test starter relay control circuit
- Check theft system arm/disarm status
Repair Notes
Perform theft system relearn or reset. If BCM is faulty, replace and program.
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
- B0009Rear Center Airbag Deployment Circuit
- B0010Driver Side Airbag Deployment
B0124 on Other Vehicles
Tesla Cybertruck
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 B0124 mean on a 2017-2020 Tesla Model 3?
B0124 stands for "Theft Deterrent System Starter Disable". The theft deterrent system has disabled the starter circuit due to a detected theft condition or system malfunction.
What are the symptoms of B0124 on a Tesla Model 3?
Common symptoms of B0124 include: Engine will not crank, Security light on solid, Key turns but starter does not engage, No-crank no-start condition.
What causes B0124 on a 2017-2020 Tesla Model 3?
Common causes of B0124 include: Theft system triggered by incorrect key, System malfunction falsely detecting theft, BCM starter relay driver failure, Immobilizer-theft system communication error.