OBD Guide

U02A8

Lost Communication With Engine Sound Control 2

U02A8 is an OBD-II diagnostic trouble code meaning: Lost Communication With Engine Sound Control 2. Common causes: broken or damaged wires in the communication circuit, engine sound control module malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Unusual engine sound
  • No sound changes in different modes
  • Check Engine light comes on
  • Possible problems with other systems using the same communication bus

Causes

  • Broken or damaged wires in the communication circuit
  • Engine Sound Control Module Malfunction
  • Connector problems or contact corrosion
  • ECU malfunction
  • Software errors

How to Fix

  1. Check the integrity of the wiring harness and connectors
  2. Check the power and ground of the sound control module
  3. Scan the system for other communication errors
  4. If necessary, replace the audio control module
  5. Update ECU software

Related codes

Error U02A8 by Vehicle Brand

FAQ

What does the U02A8 code mean?

U02A8 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Engine Sound Control 2

What causes a U02A8 error code?

The most common causes of U02A8 include: Broken or damaged wires in the communication circuit; Engine Sound Control Module Malfunction; Connector problems or contact corrosion; ECU malfunction.

How do I fix a U02A8 diagnostic trouble code?

To fix U02A8: Check the integrity of the wiring harness and connectors. Check the power and ground of the sound control module. Scan the system for other communication errors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U02A8?

Yes, but get it checked soon

How much does it cost to fix U02A8?

The estimated repair cost for U02A8 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat