OBD2 code C0034: ABS system - Wheel speed sensor
ABS wheel speed sensor fault.
Detected Root Component
Chassis Component
Observed Symptoms
- ABS light on
- ESP/ESC light on
- Brake pedal pulsation
Possible Causes
- Faulty wheel speed sensor
- Damaged ABS ring
- ABS harness cut
- Corroded connector
Tools Required
Interactive Diagnostic
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Diagnostic Result
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Parts likely to be the cause (Capteur ABS)
Capteur ABS
Photo d'illustration : Capteur ABS
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Frequently asked questions about code C0034
What does code C0034 mean? ▾
OBD2 code C0034: ABS system - Wheel speed sensor. ABS wheel speed sensor fault.
What are the symptoms of code C0034? ▾
Code C0034 may cause: ABS light on, ESP/ESC light on, Brake pedal pulsation. The intensity of these symptoms varies depending on the vehicle and driving conditions.
What causes code C0034? ▾
The most common causes of code C0034 are: Faulty wheel speed sensor, Damaged ABS ring, ABS harness cut, Corroded connector. A proper OBD2 diagnostic will pinpoint the exact cause.
Is it serious to drive with code C0034? ▾
Yes, code C0034 is critical (Critical). Avoid driving and consult a professional promptly to prevent major damage.
How do I fix code C0034? ▾
Start by reading the code with an OBD2 scanner, then follow the interactive decision tree on this page. Priority causes to check: Faulty wheel speed sensor, Damaged ABS ring, ABS harness cut, Corroded connector. Difficulty: Medium · Estimated time: 30-60min.