B0424: Temperature Control Right Feedback Circuit / Actuator Range/Performance
4 vehicles · 2 makes · $100-$900 repair
Most Reported On
B0424 is an OBD-II diagnostic trouble code meaning “Temperature Control Right Feedback Circuit / Actuator Range/Performance.” This is a body/HVAC code indicating the climate control system detected a range or performance problem with the right-side (passenger) temperature blend-door actuator feedback circuit. The blend-door actuator is a small motor that positions a door to mix hot and cold air for the passenger side, and the module monitors a feedback signal to confirm the door reaches commanded positions. The computer saw the actuator failing to move correctly or the feedback signal falling outside the expected range. This is a comfort-related fault and does not affect drivability or safety. This code is most commonly reported on 2000-2013 Chevrolet Silverado 1500, 2000-2013 GMC Sierra 1500, and 2000-2006 GMC Yukon XL, plus 1 other vehicle, with repair costs ranging from $100 to $900.
Common Causes
Typical Repair Cost
Based on 4 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose B0424, 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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Vehicles Affected (4)
FAQ
What does B0424 mean?
B0424 stands for "Temperature Control Right Feedback Circuit / Actuator Range/Performance." This is a body/HVAC code indicating the climate control system detected a range or performance problem with the right-side (passenger) temperature blend-door actuator feedback circuit. The blend-door actuator is a small motor that positions a door to mix hot and cold air for the passenger side, and the module monitors a feedback signal to confirm the door reaches commanded positions. The computer saw the actuator failing to move correctly or the feedback signal falling outside the expected range. This is a comfort-related fault and does not affect drivability or safety.
What are the most common causes of B0424?
The most common causes of B0424 are: Failed passenger-side blend-door temperature actuator motor, Stuck, broken, or binding blend door, Wiring or connector fault in the actuator feedback circuit, Corroded or loose actuator electrical connector, Faulty HVAC control module, Low or unstable system voltage affecting the actuator. The specific cause varies by vehicle.
How much does it cost to fix B0424?
Repair costs for B0424 range from $100 to $900, depending on the vehicle and root cause.
Which vehicles are affected by B0424?
Au7o has documented B0424 across 4 vehicle models from 2 manufacturers: Chevrolet, GMC.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.