C0506 on 2021-2025 Cadillac Escalade ESV (Premium Luxury, Sport, Premium Luxury Platinum, Sport Platinum) — Right Front Wheel Speed Sensor / System Circuit (manufacturer-specific)
1 vehicles · 1 makes · $250-$2,500 repair
Most Reported On
C0506 is an OBD-II diagnostic trouble code meaning “Right Front Wheel Speed Sensor / System Circuit (manufacturer-specific).” C0506 is a chassis code whose exact meaning is manufacturer- and platform-specific. On many newer GM applications it is defined as a right front wheel speed sensor circuit (open) fault, while some older or other references list it as a system/communication-related ABS code, so the precise definition should be confirmed with OEM service data for the specific vehicle. In general it points to a fault the ABS/stability module detected in a wheel-speed or system circuit, and ABS/traction/stability functions may be disabled with warning lights on. Base braking is retained. This code is most commonly reported on 2021-2025 Cadillac Escalade ESV (Premium Luxury, Sport, Premium Luxury Platinum, Sport Platinum), with repair costs ranging from $250 to $2,500.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose C0506, 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 C0506 mean?
C0506 stands for "Right Front Wheel Speed Sensor / System Circuit (manufacturer-specific)." C0506 is a chassis code whose exact meaning is manufacturer- and platform-specific. On many newer GM applications it is defined as a right front wheel speed sensor circuit (open) fault, while some older or other references list it as a system/communication-related ABS code, so the precise definition should be confirmed with OEM service data for the specific vehicle. In general it points to a fault the ABS/stability module detected in a wheel-speed or system circuit, and ABS/traction/stability functions may be disabled with warning lights on. Base braking is retained.
What are the most common causes of C0506?
The most common causes of C0506 are: Faulty right front wheel speed sensor (GM applications), Open or damaged sensor wiring, Corroded or loose sensor connector, Debris or tone ring damage at the sensor, Module communication or serial-data fault (some platforms), Poor ground or connection at the ABS/EBCM, Internal ABS module fault. The specific cause varies by vehicle.
How much does it cost to fix C0506?
Repair costs for C0506 range from $250 to $2,500, depending on the vehicle and root cause.
Which vehicles are affected by C0506?
Au7o has documented C0506 across 1 vehicle models from 1 manufacturers: Cadillac.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.