OBD Guide

C0002

TCS Control Channel A Valve 2

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine Light Is On
  • Disabling TCS
  • Reduced braking performance on slippery surfaces

Causes

  • TCS solenoid valve malfunction
  • Open or shorted wiring harness
  • Problems with the TCS control unit
  • Valve dirty or stuck

How to Fix

  1. Check the condition of the wiring harness and valve connectors
  2. Test valve resistance and power supply
  3. Clean or replace faulty valve
  4. Check and reflash the TCS control unit if necessary

Related codes

Error C0002 by Vehicle Brand