C1781
Steering Angle Sensor Circuit
C1781 is an OBD-II diagnostic trouble code meaning: Steering Angle Sensor Circuit. Common causes: broken or damaged sensor wiring harness, poor contact in sensor connectors. Estimated repair cost: $56–167.
Symptoms
- The ESP/ABS indicator on the dashboard is on
- Deterioration of the electric power steering
- Disabling the stabilization system
- Incorrect steering angle readings
Causes
- Broken or damaged sensor wiring harness
- Poor contact in sensor connectors
- Malfunction of the steering angle sensor itself
- Problems with the EPS/ESP control unit
How to Fix
- Check the sensor wiring harness for damage.
- Clean and check the contacts in the sensor connectors
- Check the resistance and signals of the sensor using a multimeter
- If necessary, replace the steering angle sensor
- Scan the system for other errors
Related codes
FAQ
What does the C1781 code mean?
C1781 is an OBD-II diagnostic trouble code that indicates: Steering Angle Sensor Circuit
What causes a C1781 error code?
The most common causes of C1781 include: Broken or damaged sensor wiring harness; Poor contact in sensor connectors; Malfunction of the steering angle sensor itself; Problems with the EPS/ESP control unit.
How do I fix a C1781 diagnostic trouble code?
To fix C1781: Check the sensor wiring harness for damage.. Clean and check the contacts in the sensor connectors. Check the resistance and signals of the sensor using a multimeter. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C1781?
Do not drive — repair immediately
How much does it cost to fix C1781?
The estimated repair cost for C1781 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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