OBD Guide
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U2505

Invalid Data Received From Human Machine Interface Control Module On MOST Bus

U2505 is an OBD-II diagnostic trouble code meaning: Invalid Data Received From Human Machine Interface Control Module On MOST Bus. Common causes: damage to the most optical cable, hmi module fault. Estimated repair cost: $56–278.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Multimedia system elements do not work
  • No image on display
  • No sound from the audio system
  • Climate control malfunctions
  • Alerts appearing on the dashboard

Causes

  • Damage to the MOST optical cable
  • HMI module fault
  • Interface module power supply problems
  • Oxidation of contacts in connectors
  • Software errors in the system

How to Fix

  1. Check the integrity of the MOST optical cable
  2. Diagnose the HMI module for faults
  3. Check the power and ground of the interface module
  4. Clean and treat contacts in connectors
  5. Update system software

Related codes

U2500U2510U2515

FAQ

What does the U2505 code mean?

U2505 is an OBD-II diagnostic trouble code that indicates: Invalid Data Received From Human Machine Interface Control Module On MOST Bus

What causes a U2505 error code?

The most common causes of U2505 include: Damage to the MOST optical cable; HMI module fault; Interface module power supply problems; Oxidation of contacts in connectors.

How do I fix a U2505 diagnostic trouble code?

To fix U2505: Check the integrity of the MOST optical cable. Diagnose the HMI module for faults. Check the power and ground of the interface module. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U2505?

Yes, but get it checked soon

How much does it cost to fix U2505?

The estimated repair cost for U2505 is $56–278. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat