OBD Guide

C050A

Right Front Wheel Speed Sensor A Intermittent/Erratic

C050A is an OBD-II diagnostic trouble code meaning: Right Front Wheel Speed Sensor A Intermittent/Erratic. Common causes: damage to the sensor wiring harness, wheel speed sensor is dirty or damaged. Estimated repair cost: $22–111.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$22–111 (est.)

Symptoms

  • ABS/ESC indicator lights up
  • Unstable ABS operation
  • Disabling cruise control
  • Incorrect speedometer readings

Causes

  • Damage to the sensor wiring harness
  • Wheel speed sensor is dirty or damaged
  • Incorrect gap between sensor and gear ring
  • Contact corrosion
  • Problems with the toothed ring (eg crack)

How to Fix

  1. Check the condition of the sensor wiring harness for damage.
  2. Clean the sensor and gear ring from dirt
  3. Check the gap between the sensor and the toothed ring
  4. Check the integrity of the toothed ring
  5. If necessary, replace the wheel speed sensor or wiring harness.

Related codes

Error C050A by Vehicle Brand

FAQ

What does the C050A code mean?

C050A is an OBD-II diagnostic trouble code that indicates: Right Front Wheel Speed Sensor A Intermittent/Erratic

What causes a C050A error code?

The most common causes of C050A include: Damage to the sensor wiring harness; Wheel speed sensor is dirty or damaged; Incorrect gap between sensor and gear ring; Contact corrosion.

How do I fix a C050A diagnostic trouble code?

To fix C050A: Check the condition of the sensor wiring harness for damage.. Clean the sensor and gear ring from dirt. Check the gap between the sensor and the toothed ring. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C050A?

Do not drive — repair immediately

How much does it cost to fix C050A?

The estimated repair cost for C050A is $22–111. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat