OBD Guide

C1106

Rear Left Sensor 2

C1106 is an OBD-II diagnostic trouble code meaning: Rear Left Sensor 2. Common causes: malfunction of the rear left wheel speed sensor, broken or damaged wiring harness to the sensor. Estimated repair cost: $33–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • The ABS/ESP indicator on the dashboard is on
  • Unstable operation of the ABS system when braking
  • Disabling the ESP system
  • Errors in the traction control system

Causes

  • Malfunction of the rear left wheel speed sensor
  • Broken or damaged wiring harness to the sensor
  • The magnetic ring on the hub is dirty or damaged
  • Poor contact in the sensor connector
  • ABS module malfunction

How to Fix

  1. Check the integrity of the sensor and its connector
  2. Inspect the wiring harness for damage
  3. Check the condition of the magnetic ring on the hub
  4. Test sensor resistance (usually 800-2000 ohms)
  5. Clean or replace sensor if necessary
  6. Check the sensor signal with an oscilloscope (if equipped)
  7. Clear errors and take a test drive

Related codes

FAQ

What does the C1106 code mean?

C1106 is an OBD-II diagnostic trouble code that indicates: Rear Left Sensor 2

What causes a C1106 error code?

The most common causes of C1106 include: Malfunction of the rear left wheel speed sensor; Broken or damaged wiring harness to the sensor; The magnetic ring on the hub is dirty or damaged; Poor contact in the sensor connector.

How do I fix a C1106 diagnostic trouble code?

To fix C1106: Check the integrity of the sensor and its connector. Inspect the wiring harness for damage. Check the condition of the magnetic ring on the hub. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1106?

Limited driving only, diagnose soon

How much does it cost to fix C1106?

The estimated repair cost for C1106 is $33–111. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat