OBD Guide

C1227

Left Rear Excessive Wheel Speed Variation

C1227 is an OBD-II diagnostic trouble code meaning: Left Rear Excessive Wheel Speed Variation. Common causes: faulty wheel speed sensor, wheel bearing wear. Estimated repair cost: $56–167.

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

Symptoms

  • ABS/ESP indicator is on
  • Uneven tire wear
  • Grinding or noise coming from the left rear wheel
  • Incorrect operation of the stabilization system

Causes

  • Faulty wheel speed sensor
  • Wheel bearing wear
  • Damage to the sensor wiring harness
  • Uneven tire pressure
  • Problems with the ABS module

How to Fix

  1. Check tire pressure
  2. Inspect the wheel speed sensor and its wiring
  3. Check the condition of the wheel bearing
  4. Test the ABS module
  5. Replace faulty components

Related codes

FAQ

What does the C1227 code mean?

C1227 is an OBD-II diagnostic trouble code that indicates: Left Rear Excessive Wheel Speed Variation

What causes a C1227 error code?

The most common causes of C1227 include: Faulty wheel speed sensor; Wheel bearing wear; Damage to the sensor wiring harness; Uneven tire pressure.

How do I fix a C1227 diagnostic trouble code?

To fix C1227: Check tire pressure. Inspect the wheel speed sensor and its wiring. Check the condition of the wheel bearing. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1227?

Limited driving only, diagnose soon

How much does it cost to fix C1227?

The estimated repair cost for C1227 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat