OBD Guide

C0002

TCS Control Channel A Valve 2

C0002 is an OBD-II diagnostic trouble code meaning: TCS Control Channel A Valve 2. Common causes: tcs solenoid valve malfunction, open or shorted wiring harness. Estimated repair cost: $56–167.

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

FAQ

What does the C0002 code mean?

C0002 is an OBD-II diagnostic trouble code that indicates: TCS Control Channel A Valve 2

What causes a C0002 error code?

The most common causes of C0002 include: TCS solenoid valve malfunction; Open or shorted wiring harness; Problems with the TCS control unit; Valve dirty or stuck.

How do I fix a C0002 diagnostic trouble code?

To fix C0002: Check the condition of the wiring harness and valve connectors. Test valve resistance and power supply. Clean or replace faulty valve. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C0002?

Do not drive — repair immediately

How much does it cost to fix C0002?

The estimated repair cost for C0002 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat