OBD Guide

U017A

Lost Communication With Restraints System Sensor K

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

Symptoms

  • Airbag light is on
  • SRS system does not pass self-diagnosis
  • Lack of response from the safety system in the event of an accident
  • Errors in the SRS ECU memory

Causes

  • Open or short circuit in the sensor circuit
  • Security system K sensor malfunction
  • Connector problems or contact corrosion
  • SRS ECU malfunction
  • Wiring harness damage

How to Fix

  1. Check the continuity of the K sensor circuit
  2. Inspect connectors and contacts for damage
  3. Check sensor resistance (according to specification)
  4. Scan the SRS system for other errors
  5. Repair only from an authorized dealer

Related codes

Error U017A by Vehicle Brand