C1011 on RAM
Left Front Wheel Speed Sensor Signal Erratic Performance
C1011 on RAM vehicles indicates left front wheel speed sensor signal erratic performance. Au7o has documented this code across 1 RAM model — most commonly on 1500. C1011 is a chassis/manufacturer-specific ("C") trouble code most commonly defined (on Chrysler, Dodge, and Jeep) as erratic or out-of-range signal from the left front wheel speed sensor used by the ABS/traction-control system. It sets when the ABS module detects implausible acceleration/deceleration patterns or a faulty signal from that sensor, which can disable ABS, traction control, and stability control. Note that on some other makes (e.g., Mercedes-Benz) the same code number refers instead to an ASR/ETS/ESP hydraulic-unit power-supply circuit fault, so confirm against the specific vehicle. Typical repair costs on RAM range from $1,800 to $4,000, depending on the specific model and root cause.
Common Causes of C1011
- •Faulty or failing left front wheel speed sensor
- •Damaged, corroded, or loose sensor wiring/connector (open or short in signal or supply line)
- •Excessive air gap between the sensor and the tone/reluctor ring
- •Damaged, contaminated, or missing teeth on the tone (reluctor) ring
- •Worn or loose front wheel bearing/hub causing erratic readings
- •Defective ABS/traction-control control module
C1011 on RAM by Model
RAM 1500(1 issue)
- Electric Power Steering (EPS) Rack Failure / Loss of Assist2015-2023
The DT-generation Ram 1500 uses a belt-driven electric power steering (EPS) system with the assist motor and control module integrated into the rack-and-pinion. When the EPS module shorts out or the motor fails, the driver loses power assist — sometimes momentarily at startup, sometimes permanently — and the steering becomes very heavy with an 'EPS' or 'Service Power Steering' warning. Because the motor/module are not serviceable separately, a failure requires replacing the entire rack assembly. Earlier 2015-2016 trucks had a related FCA-identified circuit-board contamination defect in the EPS unit.
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View C1011 across all makes →Frequently Asked Questions
What does C1011 mean on RAM?▼
C1011 stands for "Left Front Wheel Speed Sensor Signal Erratic Performance." C1011 is a chassis/manufacturer-specific ("C") trouble code most commonly defined (on Chrysler, Dodge, and Jeep) as erratic or out-of-range signal from the left front wheel speed sensor used by the ABS/traction-control system. It sets when the ABS module detects implausible acceleration/deceleration patterns or a faulty signal from that sensor, which can disable ABS, traction control, and stability control. Note that on some other makes (e.g., Mercedes-Benz) the same code number refers instead to an ASR/ETS/ESP hydraulic-unit power-supply circuit fault, so confirm against the specific vehicle. On RAM specifically, this code is documented across 1 model.
What causes C1011 on RAM vehicles?▼
Common causes on RAM: Faulty or failing left front wheel speed sensor, Damaged, corroded, or loose sensor wiring/connector (open or short in signal or supply line), Excessive air gap between the sensor and the tone/reluctor ring, Damaged, contaminated, or missing teeth on the tone (reluctor) ring, Worn or loose front wheel bearing/hub causing erratic readings. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix C1011 on a RAM?▼
Repair costs on RAM range from $1,800 to $4,000, depending on the specific model and root cause.
Which RAM models have C1011 documented?▼
Au7o has documented C1011 on 1 RAM model: 1500.