C0034
Left Front Wheel Speed Sensor No Signal
No pulses are received from the left front wheel speed sensor while other wheels report motion. The fault disables ABS and stability control.
No pulses are received from the left front wheel speed sensor while other wheels report motion. The fault disables ABS and stability control.
Common causes
- high
Sensor internally failed
One of the most commonly reported causes for this code — check this first.
Typical part cost: $90-440
- medium
Wiring open at suspension flex
A plausible cause — test and verify before replacing parts.
Typical part cost: $90-440
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does C0034 mean?
C0034 means "Left Front Wheel Speed Sensor No Signal". It is a generic OBD-II code that points to a fault in the chassis.
What are the most common causes of C0034?
sensor internally failed; wiring open at suspension flex — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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