C0662 — Left Rear Wheel Speed Sensor B Circuit High

What Does C0662 Mean?

C0662 is a diagnostic trouble code indicating: Left Rear Wheel Speed Sensor B Circuit High. This code relates to the chassis system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of C0662

⚠️ Check Engine Light (MIL) illuminated
⚠️ Left Rear Wheel Speed Sensor B reading stuck at maximum value
⚠️ Related system operating erratically or in default mode
⚠️ ABS or stability control warning light

Common Causes

🔍 Short to voltage in Left Rear Wheel Speed Sensor B wiring harness
🔍 Corroded or water-damaged Left Rear Wheel Speed Sensor B connector
🔍 Faulty Left Rear Wheel Speed Sensor B outputting maximum voltage
🔍 Damaged wiring rubbing against metal components
🔍 ECM/PCM internal fault (rare)

Frequently Asked Questions

What does C0662 mean?

C0662 indicates: Left Rear Wheel Speed Sensor B Circuit High. The vehicle's computer has detected that the Left Rear Wheel Speed Sensor B is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code C0662?

Only short distances if absolutely necessary. C0662 affects a critical system and should be diagnosed within a few days to avoid further damage.

How much does it cost to fix C0662?

Repair costs for C0662 typically range from $20 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 and repair Left Rear Wheel Speed Sensor B wiring for short to voltage
🔧 Clean or replace corroded Left Rear Wheel Speed Sensor B connector
🔧 Replace faulty Left Rear Wheel Speed Sensor B

1
Find your vehicle above
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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.

C0662: Left Rear Wheel Speed Sensor B Circuit High