C0031 on Jeep
Left Front Wheel Speed Sensor Circuit
C0031 on Jeep vehicles indicates left front wheel speed sensor circuit. Au7o has documented this code across 1 Jeep model — most commonly on Grand Cherokee. C0031 is a chassis/brake code indicating a fault in the left front wheel speed sensor circuit. The ABS module relies on this sensor to measure individual wheel rotation for anti-lock braking, traction control, and stability control; when it detects an open, short, or implausible signal it sets this code. The ABS, traction control, and stability control warning lights typically illuminate and those systems may be temporarily disabled, while normal (non-ABS) braking usually still works. Typical repair costs on Jeep range from $80 to $350, depending on the specific model and root cause.
Common Causes of C0031
- •Failed left front wheel speed sensor
- •Damaged sensor wiring or chafed harness
- •Corroded or loose sensor connector
- •Damaged or contaminated tone/reluctor ring (metal debris, rust)
- •Excessive sensor-to-ring air gap or wheel bearing play
- •ABS control module fault
C0031 on Jeep by Model
Jeep Grand Cherokee(1 issue)
- Front Wheel Speed Sensor Failure Triggering ABS, ESP/BAS and Traction-Control Warning Lights2011-2021
A failing front wheel speed (ABS) sensor commonly lights up the ABS, ESP/BAS, and traction-control warnings together on the Grand Cherokee, often the right-front sensor. Because the stability and ABS systems share wheel-speed data, one bad sensor disables anti-lock braking, electronic stability program, hill-start assist, and traction control until repaired, and can also throw a 'Service 4WD' message. Packed snow/ice/mud or a damaged tone ring can mimic the failure. It is a frequently reported and frequently searched complaint because of how many warning lights it sets at once.
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What does C0031 mean on Jeep?▼
C0031 stands for "Left Front Wheel Speed Sensor Circuit." C0031 is a chassis/brake code indicating a fault in the left front wheel speed sensor circuit. The ABS module relies on this sensor to measure individual wheel rotation for anti-lock braking, traction control, and stability control; when it detects an open, short, or implausible signal it sets this code. The ABS, traction control, and stability control warning lights typically illuminate and those systems may be temporarily disabled, while normal (non-ABS) braking usually still works. On Jeep specifically, this code is documented across 1 model.
What causes C0031 on Jeep vehicles?▼
Common causes on Jeep: Failed left front wheel speed sensor, Damaged sensor wiring or chafed harness, Corroded or loose sensor connector, Damaged or contaminated tone/reluctor ring (metal debris, rust), Excessive sensor-to-ring air gap or wheel bearing play. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix C0031 on a Jeep?▼
Repair costs on Jeep range from $80 to $350, depending on the specific model and root cause.
Which Jeep models have C0031 documented?▼
Au7o has documented C0031 on 1 Jeep model: Grand Cherokee.