OBD Guide

C0026

Left Front Wheel Speed Sensor Signal Missing

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

Symptoms

  • Disabling the ABS system
  • ABS fault indicator is on
  • Incorrect operation of the stabilization system
  • Lost speed data on dashboard

Causes

  • Faulty wheel speed sensor
  • Broken or damaged sensor wiring harness
  • Poor contact in the sensor connector
  • Damage to the toothed ring on the wheel hub
  • Problems with the ABS ECU

How to Fix

  1. Check the integrity of the sensor wiring harness
  2. Determine the state of the contacts in the sensor connector
  3. Check the resistance of the wheel speed sensor (should be within 0.8–2.3 kOhm)
  4. Inspect the toothed ring on the wheel hub for damage
  5. If necessary, replace the wheel speed sensor

Related codes

Error C0026 by Vehicle Brand