C1620 on 2019-2021 Hyundai Veloster — Active Yaw / Stability Control System Fault
1 vehicles · 1 makes · $200-$1,800 repair
Most Reported On
C1620 is an OBD-II diagnostic trouble code meaning “Active Yaw / Stability Control System Fault.” C1620 is a manufacturer-specific chassis code (documented on Mitsubishi) associated with the Active Yaw Control / stability control system. That system manages torque distribution and braking inputs to keep the vehicle stable during cornering and on slippery surfaces. When the module detects a fault in this circuit or a related sensor, it disables active yaw/stability control and illuminates the ABS and stability warning lights. Exact meaning varies by maker, so verify against the factory service manual. This code is most commonly reported on 2019-2021 Hyundai Veloster, with repair costs ranging from $200 to $1,800.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose C1620, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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FAQ
What does C1620 mean?
C1620 stands for "Active Yaw / Stability Control System Fault." C1620 is a manufacturer-specific chassis code (documented on Mitsubishi) associated with the Active Yaw Control / stability control system. That system manages torque distribution and braking inputs to keep the vehicle stable during cornering and on slippery surfaces. When the module detects a fault in this circuit or a related sensor, it disables active yaw/stability control and illuminates the ABS and stability warning lights. Exact meaning varies by maker, so verify against the factory service manual.
What are the most common causes of C1620?
The most common causes of C1620 are: Faulty yaw rate sensor, Fault in the active yaw control hydraulic/actuator unit, Damaged wiring or connectors in the system, Related wheel speed or steering angle sensor fault, Low system voltage or poor ground, Stability control module fault. The specific cause varies by vehicle.
How much does it cost to fix C1620?
Repair costs for C1620 range from $200 to $1,800, depending on the vehicle and root cause.
Which vehicles are affected by C1620?
Au7o has documented C1620 across 1 vehicle models from 1 manufacturers: Hyundai.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.