C0615 on 2013-2019 Cadillac XTS — Left Front Position Sensor Circuit Malfunction
1 vehicles · 1 makes · $700-$2,500 repair
Most Reported On
C0615 is an OBD-II diagnostic trouble code meaning “Left Front Position Sensor Circuit Malfunction.” A General Motors chassis code for the electronically controlled suspension (CVRSS / Real Time Damping / Autoride / automatic level control) used on trucks and SUVs such as Suburban, Tahoe, Yukon, Escalade and Silverado and on several Cadillac cars. The suspension control module feeds each suspension position (ride height) sensor a reference voltage - 8 volts on GM CVRSS applications, not the 5 volts typical of powertrain sensors - and expects an analog return in roughly the 0.35-4.75 volt range representing how far the body sits above the wheel. C0615 sets when the left front sensor's signal is out of range, open, or shorted. The module typically defaults the dampers to a fixed setting and displays a Service Suspension System message; the vehicle is drivable but ride quality and automatic leveling are degraded. 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 C0615.
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.
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FAQ
What does C0615 mean?
C0615 stands for "Left Front Position Sensor Circuit Malfunction." A General Motors chassis code for the electronically controlled suspension (CVRSS / Real Time Damping / Autoride / automatic level control) used on trucks and SUVs such as Suburban, Tahoe, Yukon, Escalade and Silverado and on several Cadillac cars. The suspension control module feeds each suspension position (ride height) sensor a reference voltage - 8 volts on GM CVRSS applications, not the 5 volts typical of powertrain sensors - and expects an analog return in roughly the 0.35-4.75 volt range representing how far the body sits above the wheel. C0615 sets when the left front sensor's signal is out of range, open, or shorted. The module typically defaults the dampers to a fixed setting and displays a Service Suspension System message; the vehicle is drivable but ride quality and automatic leveling are degraded.
What are the most common causes of C0615?
The most common causes of C0615 are: Failed left front suspension position (ride height) sensor, Broken or disconnected sensor link/arm to the control arm, Damaged or chafed sensor wiring near the wheel well, Corroded or water-intruded sensor connector, Loss of the sensor reference voltage or ground from the suspension control module, Suspension control module fault. The specific cause varies by vehicle.
How much does it cost to fix C0615?
Repair costs for C0615 range from $700 to $2,500, depending on the vehicle and root cause.
Which vehicles are affected by C0615?
Au7o has documented C0615 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.