OBD Code C1937
Steering Wheel Angle Sensor Offset Failure
| Code | C1937 |
| Description | Steering Wheel Angle Sensor Offset Failure |
| System | Chassis |
What Does C1937 Mean?
Steering Wheel Angle Sensor Offset Failure. This diagnostic trouble code (DTC) is stored when the vehicle's onboard computer detects an issue with the chassis.
Code Breakdown
C = Chassis code
1 = Manufacturer-specific
How to Fix C1937
Follow these diagnostic steps to identify and resolve the issue. Always start with the simplest checks before moving to more involved repairs.
- Check power steering fluid level (if hydraulic system).
- Inspect the steering rack and pump for leaks.
- Check the electric power steering motor and connector (if EPS equipped).
- Verify the steering angle sensor is calibrated.
- Clear codes and test steering at parking and highway speeds.
Note: These are general diagnostic guidelines. Some vehicles may have model-specific procedures. Always consult your vehicle's service manual for exact specifications and torque values. If you are not comfortable performing these steps, visit a qualified mechanic.
Frequently Asked Questions
Is C1937 serious?
Yes — C1937 is considered a critical-severity code. You should have it diagnosed and repaired as soon as possible. Driving with this code active may cause further damage to your vehicle or pose a safety risk.
Can I clear C1937 myself?
You can clear any OBD-II code with a code scanner or by disconnecting the battery for 15-30 minutes. However, clearing the code without fixing the underlying problem will cause it to return — usually within one or two drive cycles. If the code triggered the check engine light, the light will come back on. Fix the root cause first, then clear the code.
How much does it cost to fix C1937?
Repair costs vary widely depending on the root cause. Some fixes are free (like tightening a gas cap) while others can cost several hundred dollars (like replacing a catalytic converter or oxygen sensor). A proper diagnosis with a professional scan tool — not just reading the code — is the first step to getting an accurate repair estimate. Many auto parts stores offer free code reading, but a thorough diagnosis usually requires a mechanic.