C0037 on Volkswagen
Left Rear Wheel Speed Sensor Circuit
C0037 on Volkswagen vehicles indicates left rear wheel speed sensor circuit. Au7o has documented this code across 2 Volkswagen models — most commonly on Jetta, Touareg. C0037 is a generic OBD-II chassis code indicating a fault in the left-rear wheel speed sensor circuit. This sensor reports how fast the left-rear wheel is turning to the ABS, traction control, and stability control systems. When the module loses or sees an invalid signal from this sensor, it sets the code and typically disables ABS and traction/stability control, illuminating those warning lights. Regular braking remains functional, but the anti-lock and stability features may be inactive. Typical repair costs on Volkswagen range from $150 to $2,000, depending on the specific model and root cause.
Common Causes of C0037
- •Damaged or corroded wiring near the sensor
- •Failed left-rear wheel speed sensor
- •Corroded or loose sensor connector
- •Damaged tone/reluctor ring or excessive air gap
- •Debris, rust, or metal shavings at the sensor tip
- •Open or short in the sensor circuit
- •ABS module fault or loss of communication
C0037 on Volkswagen by Model
Volkswagen Jetta(1 issue)
- ABS Control Module and Low-Speed False ABS Activation2000-2001
Complaint data show a recurring pattern of ABS warning lights, chimes, and unexpected ABS activation at low speeds, sometimes causing longer stopping distances or abrupt brake behavior. The issue is reinforced by a recall covering short circuits within the ABS electronic control unit on certain early Jettas.
Volkswagen Touareg(1 issue)
- ABS Module and Pump Failure2004-2010
The ABS hydraulic module and pump assembly fails, triggering ABS, traction control, and stability control warning lights. The module is expensive and mounted in a location prone to moisture intrusion. Can cause complete loss of ABS function.
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View C0037 across all makes →Frequently Asked Questions
What does C0037 mean on Volkswagen?▼
C0037 stands for "Left Rear Wheel Speed Sensor Circuit." C0037 is a generic OBD-II chassis code indicating a fault in the left-rear wheel speed sensor circuit. This sensor reports how fast the left-rear wheel is turning to the ABS, traction control, and stability control systems. When the module loses or sees an invalid signal from this sensor, it sets the code and typically disables ABS and traction/stability control, illuminating those warning lights. Regular braking remains functional, but the anti-lock and stability features may be inactive. On Volkswagen specifically, this code is documented across 2 models.
What causes C0037 on Volkswagen vehicles?▼
Common causes on Volkswagen: Damaged or corroded wiring near the sensor, Failed left-rear wheel speed sensor, Corroded or loose sensor connector, Damaged tone/reluctor ring or excessive air gap, Debris, rust, or metal shavings at the sensor tip. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix C0037 on a Volkswagen?▼
Repair costs on Volkswagen range from $150 to $2,000, depending on the specific model and root cause.
Which Volkswagen models have C0037 documented?▼
Au7o has documented C0037 on 2 Volkswagen models: Jetta, Touareg.