What Does C0472 Mean?
This code indicates that the electronic stability control or power steering control module has detected an abnormally low voltage signal from the steering wheel position/speed sensor. The sensor monitors the rate and direction of steering wheel rotation to support stability control, lane keeping, and power steering systems. The control module has determined the signal voltage is below the acceptable threshold, indicating a potential sensor, wiring, or circuit fault.
Common Causes
40%
Damaged or corroded wiring harness, connectors, or terminals in the steering wheel sensor circuit
30%
Faulty steering wheel position/speed sensor (internal component failure)
20%
Failed or damaged clock spring assembly causing intermittent or open circuit
10%
Control module power supply issue or internal module fault
Diagnostic Steps
1
Step 1: Perform visual inspection of all steering column wiring, connectors at the base of the steering column, and clock spring assembly for physical damage, corrosion, water intrusion, or disconnected terminals
2
Step 2: Using a digital multimeter, check the steering wheel sensor signal voltage at the sensor connector with ignition on (should typically read 0.5-4.8V depending on manufacturer). Compare to specification and verify voltage changes when rotating steering wheel
3
Step 3: Test the sensor ground circuit for continuity to chassis ground and check for resistance (should be less than 1 ohm). Verify the sensor receives proper reference voltage (typically 5V) from the control module
4
Step 4: If wiring and voltage supply are correct, disconnect the sensor and measure its internal resistance according to manufacturer specifications (typically 500-3000 ohms). Replace sensor if out of specification
5
Step 5: If sensor tests good, inspect and test the clock spring assembly for continuity through all circuits while rotating steering wheel lock-to-lock. Replace clock spring if open circuit or intermittent connection detected
6
Step 6: Clear codes, perform steering angle sensor calibration/relearn procedure per manufacturer specifications, and road test vehicle while monitoring live sensor data to verify proper signal throughout full steering range
Estimated Repair Cost
$150 - $800
Parts + labor, varies by vehicle and location
This code indicates that the electronic stability control or power steering control module has detected an abnormally low voltage signal from the steering wheel position/speed sensor. The sensor monitors the rate and direction of steering wheel rotation to support stability control, lane keeping, an...
The most common cause of C0472 (Steering Handwheel Speed Sensor Signal V Low) is: Damaged or corroded wiring harness, connectors, or terminals in the steering wheel sensor circuit
Typical repair costs for C0472 range from $150 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle is generally safe to drive with reduced functionality. Electronic stability control, traction control, and lane keeping systems may be disabled or operate improperly. Power steering assistance may be affected on some vehicles. Repair should be completed promptly to restore full safety system functionality.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C0472 to identify the root cause.
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Quick Info
Category
Chassis
System
Electronic Stability Control / Power Steering System
Difficulty
Type
Generic (SAE)
Recommended Tools
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