Trunk/Liftgate Lock Circuit
2016-2019 Tesla Model S P100D Dual Motor AWD 🇨🇦
Description
Malfunction in the trunk or liftgate lock/latch actuator circuit.
Symptoms
- Trunk will not lock or unlock
- Liftgate latch not releasing
- Remote trunk release not working
- Trunk ajar warning stays on
Common Causes
- Faulty trunk latch actuator
- Wiring damage in trunk lid
- Trunk release switch failure
- Latch mechanism jammed
- BCM output issue
Diagnostic Steps
- Test trunk release switch
- Apply direct power to latch actuator
- Inspect wiring in trunk lid hinge area
- Check for mechanical latch jam
- Test BCM trunk output
Repair Notes
Replace trunk latch actuator or repair wiring. Check hinge area wiring for fatigue damage.
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
B0099 on Other Vehicles
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Tesla Model 3
2017-2020 Long Range Dual Motor AWD
Tesla Model 3
2017-2020 Performance Dual Motor AWD
Tesla Model 3
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Tesla Model 3
2021-2024 Long Range Dual Motor AWD
Tesla Model 3
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Common Questions
What does code B0099 mean on a 2016-2019 Tesla Model S?
B0099 stands for "Trunk/Liftgate Lock Circuit". Malfunction in the trunk or liftgate lock/latch actuator circuit.
What are the symptoms of B0099 on a Tesla Model S?
Common symptoms of B0099 include: Trunk will not lock or unlock, Liftgate latch not releasing, Remote trunk release not working, Trunk ajar warning stays on.
What causes B0099 on a 2016-2019 Tesla Model S?
Common causes of B0099 include: Faulty trunk latch actuator, Wiring damage in trunk lid, Trunk release switch failure, Latch mechanism jammed, BCM output issue.