C0664 — Left Rear Wheel Speed Sensor B Correlation

What Does C0664 Mean?

C0664 is a diagnostic trouble code indicating: Left Rear Wheel Speed Sensor B Correlation. This code relates to the chassis system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of C0664

⚠️ Check Engine Light (MIL) illuminated
⚠️ Left Rear Wheel Speed Sensor B Correlation not functioning as expected
⚠️ Related system may be in fail-safe mode
⚠️ ABS or stability control warning light

Common Causes

🔍 Faulty Left Rear Wheel Speed Sensor B Correlation
🔍 Wiring or connector issue in Left Rear Wheel Speed Sensor B Correlation circuit
🔍 Related mechanical or electrical fault
🔍 ECM/PCM issue (rare)

Frequently Asked Questions

What does C0664 mean?

C0664 indicates: Left Rear Wheel Speed Sensor B Correlation. The vehicle's computer has detected that the Left Rear Wheel Speed Sensor B Correlation is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code C0664?

Only short distances if absolutely necessary. C0664 affects a critical system and should be diagnosed within a few days to avoid further damage.

How much does it cost to fix C0664?

Repair costs for C0664 typically range from $100 to $400, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Inspect Left Rear Wheel Speed Sensor B Correlation and related wiring
🔧 Replace faulty Left Rear Wheel Speed Sensor B Correlation

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2
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3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

C0664: Left Rear Wheel Speed Sensor B Correlation