Known Issues/C0035/Jeep

C0035 on Jeep

Left Front Wheel Speed Sensor Circuit

Moderate1 Jeep model affected$180-$800 typical repairSystem: Brakes

C0035 on Jeep vehicles indicates left front wheel speed sensor circuit. Au7o has documented this code across 1 Jeep model — most commonly on Patriot. This chassis code indicates a fault in the left front wheel speed sensor circuit. Each wheel has a speed sensor that tells the ABS, traction control, and stability control systems how fast that wheel is turning; the control module sets this code when the signal from the left front sensor is missing, erratic, or out of range. Without a valid reading, the computer can't safely operate anti-lock braking and related systems, so it usually disables ABS and traction/stability control and lights the corresponding dashboard warnings (normal braking still works). It generally points to the sensor itself, its wiring, or the toothed reluctor ring it reads. Typical repair costs on Jeep range from $180 to $800, depending on the specific model and root cause.

Common Causes of C0035

  • •Faulty left front wheel speed sensor
  • •Damaged sensor wiring or connector (road debris, corrosion)
  • •Metal debris or rust on the sensor tip or air gap
  • •Damaged or cracked tone/reluctor ring
  • •Loose or improperly seated sensor
  • •Corroded or loose wheel bearing with integrated sensor
  • •Open or short in the sensor circuit
  • •Faulty ABS control module (less common)

C0035 on Jeep by Model

Jeep Patriot(1 issue)

  • Front Wheel Bearing / Hub Assembly Failure - Speed-Dependent Growl and ABS Light2007-2017

    The front hub-and-bearing assemblies are a wear item on the Patriot rather than a lifetime part, and owners report failures well under 100,000 miles. The signature is a low grinding or whirring hum that rises with road speed and changes when the vehicle is loaded in a corner - louder turning one direction, quieter the other. Because the ABS tone ring is integral to the bearing on this platform, a failing bearing frequently trips the ABS, ESP/BAS and traction-control lights together, which sends owners chasing a wheel-speed sensor that is not actually bad. Forum owners note that a bearing can be audibly failing for a long time while still showing no play at the 12-and-6 rock test, so a no-play result does not clear it.

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Frequently Asked Questions

What does C0035 mean on Jeep?▼

C0035 stands for "Left Front Wheel Speed Sensor Circuit." This chassis code indicates a fault in the left front wheel speed sensor circuit. Each wheel has a speed sensor that tells the ABS, traction control, and stability control systems how fast that wheel is turning; the control module sets this code when the signal from the left front sensor is missing, erratic, or out of range. Without a valid reading, the computer can't safely operate anti-lock braking and related systems, so it usually disables ABS and traction/stability control and lights the corresponding dashboard warnings (normal braking still works). It generally points to the sensor itself, its wiring, or the toothed reluctor ring it reads. On Jeep specifically, this code is documented across 1 model.

What causes C0035 on Jeep vehicles?▼

Common causes on Jeep: Faulty left front wheel speed sensor, Damaged sensor wiring or connector (road debris, corrosion), Metal debris or rust on the sensor tip or air gap, Damaged or cracked tone/reluctor ring, Loose or improperly seated sensor. Specific causes vary by model and year — see the per-model sections below.

How much does it cost to fix C0035 on a Jeep?▼

Repair costs on Jeep range from $180 to $800, depending on the specific model and root cause.

Which Jeep models have C0035 documented?▼

Au7o has documented C0035 on 1 Jeep model: Patriot.

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