U140A
Implausible Right Front Wheel Speed Signal Received
U140A is an OBD-II diagnostic trouble code meaning: Implausible Right Front Wheel Speed Signal Received. Common causes: malfunction of the right front wheel speed sensor, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.
Symptoms
- The ABS/ESP indicator on the dashboard is on
- Incorrect operation of the ABS system
- Disabling the ESP stabilization system
- Errors in cruise control operation
- Incorrect speedometer readings
Causes
- Malfunction of the right front wheel speed sensor
- Open or short circuit in the sensor circuit
- Contamination or damage to the ring gear
- Problems with the sensor connector
- ECU malfunction
How to Fix
- Check the status of the wheel speed sensor
- Check the integrity of wiring and connectors
- Clean the ring gear from dirt
- Replace faulty sensor
- Check and, if necessary, replace the computer
Related codes
FAQ
What does the U140A code mean?
U140A is an OBD-II diagnostic trouble code that indicates: Implausible Right Front Wheel Speed Signal Received
What causes a U140A error code?
The most common causes of U140A include: Malfunction of the right front wheel speed sensor; Open or short circuit in the sensor circuit; Contamination or damage to the ring gear; Problems with the sensor connector.
How do I fix a U140A diagnostic trouble code?
To fix U140A: Check the status of the wheel speed sensor. Check the integrity of wiring and connectors. Clean the ring gear from dirt. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U140A?
Limited driving only, diagnose soon
How much does it cost to fix U140A?
The estimated repair cost for U140A is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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