C0620 on 2013-2019 Cadillac XTS — Right Front Position (Ride Height) Sensor Circuit
1 vehicles · 1 makes · $700-$2,500 repair
Most Reported On
C0620 is an OBD-II diagnostic trouble code meaning “Right Front Position (Ride Height) Sensor Circuit.” Manufacturer-specific (General Motors, electronic/Autoride suspension). The suspension control module supplies a 5-volt reference to each ride height position sensor and expects a 0.35–4.75 volt signal back representing the distance between the body and the wheel. This code sets when the right front sensor signal stays outside that range for several seconds during normal driving. It is one of a set of corner codes — C0615 covers the left front — and symptoms typically include a Service Suspension or Service Ride Control message, uneven ride height, and loss of automatic leveling or damping control. This code is most commonly reported on 2013-2019 Cadillac XTS, with repair costs ranging from $700 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
This is a chassis code. A basic engine-code reader will not show it — you need a scanner that reads chassis modules. These read C0620.
One caveat that applies to every scanner: only powertrain codes are standardised across manufacturers. Body, chassis and network coverage is "enhanced" diagnostics, and how deep it goes varies by make and model year — check your specific vehicle against the tool's coverage list before buying.
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level tablet with all-system coverage and bi-directional control, so you can command a module rather than only read it.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
What you can do yourself, and what needs a shop
Reading the code, clearing it, and watching whether it returns is a driveway job with the right scanner. These steps are not:
- Module programming or software updates — needs the manufacturer software or a J2534 pass-through with a paid subscription.
- Replacing a control module — most are VIN-programmed and immobilizer-registered, so a new one does nothing until it is coded to your car.
- Airbag/SRS component work — a stored fault can deploy a live device.
If the vehicle is still under warranty, check for an open recall or technical service bulletin before buying anything — the repair may already be covered.
As an Amazon Associate, we earn from qualifying purchases. Prices are approximate and may vary.
FAQ
What does C0620 mean?
C0620 stands for "Right Front Position (Ride Height) Sensor Circuit." Manufacturer-specific (General Motors, electronic/Autoride suspension). The suspension control module supplies a 5-volt reference to each ride height position sensor and expects a 0.35–4.75 volt signal back representing the distance between the body and the wheel. This code sets when the right front sensor signal stays outside that range for several seconds during normal driving. It is one of a set of corner codes — C0615 covers the left front — and symptoms typically include a Service Suspension or Service Ride Control message, uneven ride height, and loss of automatic leveling or damping control.
What are the most common causes of C0620?
The most common causes of C0620 are: Failed right front position/ride height sensor, Broken or disconnected sensor link/arm to the control arm, Damaged, chafed, or corroded sensor wiring or connector, Open, short to ground, or short to voltage in the sensor circuit, Faulty electronic suspension control module. The specific cause varies by vehicle.
How much does it cost to fix C0620?
Repair costs for C0620 range from $700 to $2,500, depending on the vehicle and root cause.
Which vehicles are affected by C0620?
Au7o has documented C0620 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.