DTC B16FF12 indicates: sensor line 4 short to power.
What It Means
DTC B16FF12 indicates: sensor line 4 short to power. This code is set by the Safety System control module when it detects the condition above. It typically points to an electrical, wiring, or component-level fault rather than a software-only glitch. Technicians should read the freeze-frame data and check the related circuits, connectors, and module supply before replacing parts.
What To Do
Stop the vehicle as soon as it is safe to do so and contact an authorized service center immediately. Do not continue driving — this fault may affect safety-critical functions such as braking, restraint, or high-voltage isolation.
FAQ
What does DTC B16FF12 mean?
DTC B16FF12 indicates: sensor line 4 short to power. It is logged by the Safety System control module and should be diagnosed before further driving or repair.
Can I keep driving with DTC B16FF12?
Stop the vehicle as soon as it is safe to do so and contact an authorized service center immediately. Do not continue driving — this fault may affect safety-critical functions such as braking, restraint, or high-voltage isolation.
Which models does DTC B16FF12 apply to?
This code applies to the following BYD models: Qin. Always confirm the exact configuration against the vehicle VIN and production year.
Technical Info
| Field | Value |
|---|---|
| Code | B16FF12 |
| Description | sensor line 4 short to power |
| System | Safety System |
| Source System | SRS |
| Severity | Level 3 — Critical |
| Applicable Models | Qin |
Source: adapted from the dianchema.com BYD fault-code knowledge base. Disclaimer: This material is provided for professional technician reference only. Always follow the official BYD service manual for your specific vehicle. evrepairbase.com is not affiliated with BYD Auto.