OBD Guide

U0254

Lost Communication With Remote Start Module

U0254 is an OBD-II diagnostic trouble code meaning: Lost Communication With Remote Start Module. Common causes: broken or damaged wires in the communication circuit, remote start module malfunction. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Remote engine start does not work
  • Error indication on the dashboard
  • Lack of response to commands from the key fob
  • Inability to program autorun

Causes

  • Broken or damaged wires in the communication circuit
  • Remote start module malfunction
  • Module power problems
  • Corrosion of contacts or connectors
  • Vehicle CAN bus malfunction

How to Fix

  1. Check the integrity of the wiring harness to the module
  2. Diagnose the power supply of the remote start module
  3. Check CAN bus connections
  4. Scan the module for errors
  5. Replace remote start module if necessary

Related codes

Error U0254 by Vehicle Brand

FAQ

What does the U0254 code mean?

U0254 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Remote Start Module

What causes a U0254 error code?

The most common causes of U0254 include: Broken or damaged wires in the communication circuit; Remote start module malfunction; Module power problems; Corrosion of contacts or connectors.

How do I fix a U0254 diagnostic trouble code?

To fix U0254: Check the integrity of the wiring harness to the module. Diagnose the power supply of the remote start module. Check CAN bus connections. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U0254?

Yes, but get it checked soon

How much does it cost to fix U0254?

The estimated repair cost for U0254 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat