Severity: 🔴 Severe | System: Thermal Management | Source: A/C System
DTC Meaning
B122B11: Coolant Temperature Sensor Short Circuit
Possible Fault Areas
- PTC
What to Do When This Code Appears?
This is a severe fault code. It is recommended to immediately contact a BYD authorized service center for professional repair. Avoid continued driving until the fault is resolved.
Applicable Models
- BYD Qin EV300 2017
- BYD Qin Pro DM 2018
- BYD Qin Pro DM 2019
Related Warning Lights
The following dashboard warning lights may be related to this DTC:
- High Coolant Temperature Warning Light (Thermal Management)
- Motor Overheating Warning Light (Thermal Management)
- Motor Coolant Overtemperature Warning Light (Thermal Management)
Technical Information
| Item | Content |
|---|---|
| DTC Code | B122B11 |
| Fault Description | Coolant Temperature Sensor Short Circuit |
| System | Thermal Management System |
| Source System | A/C |
| Severity Level | Level 3 (Severe) |
| Applicable Models | Qin |
| Data Source | BYD Service Manual |
Frequently Asked Questions
What does BYD fault code B122B11 mean?
Fault code B122B11 indicates: Coolant Temperature Sensor Short Circuit. This code originates from the BYD service manual's A/C system fault code table.
Can I continue driving when BYD fault code B122B11 appears?
Immediate repair is recommended. This is a severe fault code. Contact a BYD authorized service center immediately for professional repair and avoid driving until the issue is resolved.
Which models does BYD fault code B122B11 apply to?
This fault code applies to BYD Qin EV300 2017, Qin Pro DM 2018, and Qin Pro DM 2019. Data sourced from BYD service manual.