OBD Guide

C1172

Steering Angle Sensor Internal Fault

C1172 is an OBD-II diagnostic trouble code meaning: Steering Angle Sensor Internal Fault. Common causes: mechanical damage to the sensor, wear of internal sensor components. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • ESC/ABS indicator is on
  • Loss of stabilization system functions
  • Incorrect operation of the braking assistance system
  • Check Engine light comes on

Causes

  • Mechanical damage to the sensor
  • Wear of internal sensor components
  • Corrosion of contacts or connectors
  • Open or short circuit in wiring harness
  • Problems with the ESC/ABS control unit

How to Fix

  1. Carry out diagnostics using an OBD-II scanner to confirm the code
  2. Visually inspect the sensor and wiring harness for damage.
  3. Check contacts and connectors for corrosion
  4. If necessary, replace the steering angle sensor
  5. Calibrate the sensor after replacement
  6. Clear the error and check the system operation

Related codes

FAQ

What does the C1172 code mean?

C1172 is an OBD-II diagnostic trouble code that indicates: Steering Angle Sensor Internal Fault

What causes a C1172 error code?

The most common causes of C1172 include: Mechanical damage to the sensor; Wear of internal sensor components; Corrosion of contacts or connectors; Open or short circuit in wiring harness.

How do I fix a C1172 diagnostic trouble code?

To fix C1172: Carry out diagnostics using an OBD-II scanner to confirm the code. Visually inspect the sensor and wiring harness for damage.. Check contacts and connectors for corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1172?

Do not drive — repair immediately

How much does it cost to fix C1172?

The estimated repair cost for C1172 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat