C0615 on Cadillac
Left Front Position Sensor Circuit Malfunction
C0615 on Cadillac vehicles indicates left front position sensor circuit malfunction. Au7o has documented this code across 1 Cadillac model — most commonly on XTS. 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. Typical repair costs on Cadillac range from $700 to $2,500, depending on the specific model and root cause.
Common Causes of C0615
- •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
C0615 on Cadillac by Model
Cadillac XTS(1 issue)
- Rear Air Suspension Sudden Collapse (F38 Air Ride)2013-2019
XTS models equipped with the optional rear air-leveling suspension (RPO F38) suffer sudden, total collapse of the rear air springs/struts, often without warning and sometimes at highway speed. NHTSA/CarComplaints reports describe the rear dropping so low the tires nearly contact the wheel wells, causing the rear end to bounce and loss of vehicle control. Root causes include failed rear air springs (perforation/dry-rot), a worn-out air dryer/desiccant that lets moisture accumulate, and air compressor/air-line failures. A 'Service Leveling System' message and the car sitting low or unlevel are the early warning signs. The 2013 model year alone shows ~24 logged suspension complaints, the highest-volume XTS problem after CUE.
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What does C0615 mean on Cadillac?▼
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. On Cadillac specifically, this code is documented across 1 model.
What causes C0615 on Cadillac vehicles?▼
Common causes on Cadillac: 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. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix C0615 on a Cadillac?▼
Repair costs on Cadillac range from $700 to $2,500, depending on the specific model and root cause.
Which Cadillac models have C0615 documented?▼
Au7o has documented C0615 on 1 Cadillac model: XTS.