Wheel Speed Sensor Signal Correlation Error

The computer compares the speeds of the wheels from the sensors and if one is off by a significant margin (like 5-10 mph under certain conditions), it throws this code.

The vehicle's computer looks at the input from all wheel speed sensors (typically 4 for ABS systems) and checks if their readings correlate. If it notices one reading is drastically different compared to the others, it triggers this code.

Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.

1. 11. Visually inspect all wheel speed sensor wiring and connectors for damage or loose connections. Repair as necessary. -> If no issues found, proceed to step 2.
2. 22. Test the resistance of the wheel speed sensors. Expected range is typically 1,000 to 2,500 ohms. -> If resistance is off, replace the faulty sensor. If all are fine, proceed to step 3.
3. 33. Check for uneven tire sizes or worn tires. Make sure all tires are same size and properly inflated. -> If tires are uneven, fix or replace them. If tires are fine, proceed to step 4.
4. 44. Use a scan tool to monitor wheel speed sensor readings while the vehicle is in motion. Check if one sensor reading is out of range compared to others. -> If one is out, replace that specific sensor. If all readings are consistent, consider an ABS module issue.

• Faulty wheel speed sensor
• Damaged wiring or connector to the sensor
• Differences in tire sizes or uneven tire wear
• ABS module issues

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