OBD Guide

C0089

TCS Disable Switch

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

Symptoms

  • Check Engine Light Is On
  • TCS system does not work or turns off
  • Handling problems on slippery roads

Causes

  • Faulty TCS switch
  • Damaged wiring harness
  • Poor contact in the switch connector
  • Short circuit or open circuit

How to Fix

  1. Check the TCS switch for mechanical damage
  2. Inspect the wiring harness and connectors for damage
  3. Check the circuit for open or short circuit
  4. Replace TCS switch if necessary

Error C0089 by Vehicle Brand