OBD Guide

U0286

Lost Communication With Radiator Anti Tamper Device

U0286 is an OBD-II diagnostic trouble code meaning: Lost Communication With Radiator Anti Tamper Device. Common causes: open or short circuit in wiring harness, poor connection in connectors. Estimated repair cost: $33–133.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–133 (est.)

Symptoms

  • Check Engine Light Is On
  • Possible problems with the cooling system
  • Unstable engine operation
  • Error message on the dashboard

Causes

  • Open or short circuit in wiring harness
  • Poor connection in connectors
  • Radiator protection device malfunction
  • Problems with the ECU
  • Contact corrosion

How to Fix

  1. Check the integrity of the wiring harness
  2. Inspect connectors for corrosion or damage
  3. Check the functionality of the radiator protection device
  4. Scan for other related error codes
  5. Update ECU software if necessary
  6. Repair only from an authorized dealer

Related codes

Error U0286 by Vehicle Brand

FAQ

What does the U0286 code mean?

U0286 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Radiator Anti Tamper Device

What causes a U0286 error code?

The most common causes of U0286 include: Open or short circuit in wiring harness; Poor connection in connectors; Radiator protection device malfunction; Problems with the ECU.

How do I fix a U0286 diagnostic trouble code?

To fix U0286: Check the integrity of the wiring harness. Inspect connectors for corrosion or damage. Check the functionality of the radiator protection device. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U0286?

Yes, but get it checked soon

How much does it cost to fix U0286?

The estimated repair cost for U0286 is $33–133. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat