Left Front Wheel Speed Sensor Circuit Intermittent
The C0038 code means the vehicle's onboard diagnostic system has detected: Left Front Wheel Speed Sensor Circuit Intermittent. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- moderate
- Estimated cost
- $100 - $400 (parts and labor)
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Common Symptoms
- ABS warning light comes and goes
- Intermittent traction control fault
- Occasional speedometer flutter
- ABS codes that clear but return
Probable Causes (Ranked by Likelihood)
- Loose left front sensor connector Very High
- Chafed left front sensor wiring High
- Temperature-sensitive sensor crack Moderate
- Partially damaged tone ring Low
Step-by-Step Diagnostic Procedure
-
Wiggle test left front sensor wiring while monitoring live data
-
Inspect sensor connector for loose pins
-
Check wiring harness for chafing points
-
Examine tone ring for partial damage
Frequently Asked Questions
What does code C0038 mean?
C0038 indicates a problem with the left front wheel speed sensor circuit causing intermittent signal.
Can I drive with code C0038?
You can drive short distances, but ABS and traction control will be disabled. Avoid slippery roads.
How much does it cost to fix C0038?
Wheel speed sensor repairs typically cost $100 to $400 including parts and labor.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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