Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer is having trouble getting a steady signal from a sensor that measures how fast the back part of the car is moving.
The rear drive shaft speed sensor sends signals to the car's computer about the speed of the rear drive shaft. If the signal is not steady, the computer can't accurately determine the speed.
The C05F2 code indicates that the signal from the rear drive shaft speed sensor is intermittent, meaning it is not consistent. This can affect the vehicle's ability to properly manage systems that rely on speed data, such as traction control and ABS.
• ABS warning light on
• Traction control system malfunction
• Inconsistent speedometer readings
• Faulty rear drive shaft speed sensor
• Damaged or corroded wiring or connectors
• Intermittent electrical connection
OBD-II: On-Board Diagnostics, a standardized system in vehicles for self-diagnosis and reporting.
ABS: Anti-lock Braking System, a safety system that prevents the wheels from locking up during braking.
• Inspect the rear drive shaft speed sensor for damage.
• Check the wiring and connectors for corrosion or damage.
• Test the sensor signal with an oscilloscope to check for intermittent signals.
• Replace the rear drive shaft speed sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Ensure all electrical connections are secure.
• OBD-II scanner
• Multimeter
• Oscilloscope
$100 - $300
Moderate
• Chevrolet Silverado
• GMC Sierra
• Ford F-150
• Regularly inspect sensor connections for corrosion.
• Avoid driving through deep water that may damage sensors.
• Perform routine maintenance checks on the vehicle's electrical system.
Sensor Issue
• Drive cautiously if the ABS or traction control light is on.
• Have the vehicle inspected by a professional mechanic.
• Avoid heavy braking until the issue is resolved.
Check with the vehicle manufacturer for warranty coverage on sensors.
This code has been associated with issues in vehicles with higher mileage or those exposed to harsh environments.
Moderate – It is important to address this issue to ensure proper vehicle handling and safety systems functionality.
Driving with a malfunctioning speed sensor can affect safety systems like ABS and traction control, which may lead to increased stopping distances or loss of vehicle control.
• Vehicle must be on a lift to inspect the drive shaft and sensor.
• Perform tests with the vehicle's ignition on and engine off.
The rear drive shaft speed sensor is typically located near the rear differential or on the drive shaft itself.
Q: Can I drive with the C05F2 code?
A: It's possible to drive, but safety systems like ABS and traction control may not work properly.
Q: How do I reset the C05F2 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is fixed, it should not return.
Pro · Four-system diagnostics
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Chassis and ABS faults usually need a scanner that can read brake-system data directly.
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Universal · Torque wrench
Useful when reassembly torque matters for wheel, suspension, and under-hood fasteners.
Useful when wheel, hub, or suspension hardware needs correct reassembly torque.
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Universal · Drive-on ramps
Helpful for safer access underneath the vehicle during exhaust, EVAP, and underbody inspection work.
Helpful for safer access during underbody inspection work.
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