Rear Drive Shaft Speed Sensor Circuit High

Where it lives

For C05F1, the sensor sits on the circuit this code reports. The description of C05F1 reports a fault at the sensor.

Check these first

• A rear drive shaft speed sensor that failed high
• An open in the signal wire from the rear drive shaft speed sensor
• Corrosion or water in the rear drive shaft speed sensor connector
• Excessive air gap at the rear drive shaft tone ring
• A damaged or missing rear drive shaft tone ring

What to do next

1. Read rear drive shaft speed with a scan tool
2. Inspect the rear drive shaft speed sensor connector for corrosion
3. Check the sensor air gap at the rear drive shaft tone ring
4. Test the sensor signal wire for an open
5. Replace the rear drive shaft speed sensor if the signal is high
6. Clear the code and retest

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