U1409
Implausible Left Front Wheel Speed Signal Received
U1409 is an OBD-II diagnostic trouble code meaning: Implausible Left Front Wheel Speed Signal Received. Common causes: left front wheel speed sensor malfunction, damage to the wiring to the sensor. Estimated repair cost: $17–56.
Symptoms
- The ABS or ESP indicator on the dashboard is on
- Disabling the ABS or ESP system
- Incorrect operation of cruise control
- Uneven braking
- Errors in the operation of the traction control system
Causes
- Left front wheel speed sensor malfunction
- Damage to the wiring to the sensor
- Contamination or damage to the ring gear on the hub
- Poor contact in the sensor connector
- Malfunction of the ABS/ESP control unit
How to Fix
- Check the status of the wheel speed sensor
- Inspect wiring and connectors for damage
- Clean the ring gear on the hub
- Check the sensor resistance and compare with the norm
- If necessary, replace the wheel speed sensor
Related codes
FAQ
What does the U1409 code mean?
U1409 is an OBD-II diagnostic trouble code that indicates: Implausible Left Front Wheel Speed Signal Received
What causes a U1409 error code?
The most common causes of U1409 include: Left front wheel speed sensor malfunction; Damage to the wiring to the sensor; Contamination or damage to the ring gear on the hub; Poor contact in the sensor connector.
How do I fix a U1409 diagnostic trouble code?
To fix U1409: Check the status of the wheel speed sensor. Inspect wiring and connectors for damage. Clean the ring gear on the hub. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1409?
Limited driving only, diagnose soon
How much does it cost to fix U1409?
The estimated repair cost for U1409 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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