OBD Guide
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C123F

Steering Angle Sensor Comparative Performance

C123F is an OBD-II diagnostic trouble code meaning: Steering Angle Sensor Comparative Performance. Common causes: malfunction of the steering angle sensor, wiring harness damage. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine Light Is On
  • Incorrect operation of the stabilization system (ESP)
  • Reduced effectiveness of braking assistance

Causes

  • Malfunction of the steering angle sensor
  • Wiring harness damage
  • Incorrect sensor calibration
  • Problems with the control unit

How to Fix

  1. Check the integrity of the wiring harness
  2. Check sensor readings using diagnostic equipment
  3. Replace sensor if necessary
  4. Perform sensor calibration

Related codes

C123EC1240U0121

FAQ

What does the C123F code mean?

C123F is an OBD-II diagnostic trouble code that indicates: Steering Angle Sensor Comparative Performance

What causes a C123F error code?

The most common causes of C123F include: Malfunction of the steering angle sensor; Wiring harness damage; Incorrect sensor calibration; Problems with the control unit.

How do I fix a C123F diagnostic trouble code?

To fix C123F: Check the integrity of the wiring harness. Check sensor readings using diagnostic equipment. Replace sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C123F?

Limited driving only, diagnose soon

How much does it cost to fix C123F?

The estimated repair cost for C123F is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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