OBD Guide
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U15F3

Human Machine Interface Control Module Lost Communication With Navigation Control Module On LIN Bus

U15F3 is an OBD-II diagnostic trouble code meaning: Human Machine Interface Control Module Lost Communication With Navigation Control Module On LIN Bus. Common causes: navigation module malfunction, open or short circuit in the lin bus. Estimated repair cost: $17–111.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–111 (est.)

Symptoms

  • Navigation system does not work
  • Multimedia system hangs
  • Lack of communication between modules
  • Other communication errors appear

Causes

  • Navigation module malfunction
  • Open or short circuit in the LIN bus
  • Poor contact in connectors
  • Problems with module power supply
  • Software failure in the HMI module

How to Fix

  1. Check the integrity of the LIN bus
  2. Inspect module connectors and contacts
  3. Check the power supply of the navigation module
  4. Reboot the system
  5. Update module software

Related codes

U15F0U15F1U15F2

FAQ

What does the U15F3 code mean?

U15F3 is an OBD-II diagnostic trouble code that indicates: Human Machine Interface Control Module Lost Communication With Navigation Control Module On LIN Bus

What causes a U15F3 error code?

The most common causes of U15F3 include: Navigation module malfunction; Open or short circuit in the LIN bus; Poor contact in connectors; Problems with module power supply.

How do I fix a U15F3 diagnostic trouble code?

To fix U15F3: Check the integrity of the LIN bus. Inspect module connectors and contacts. Check the power supply of the navigation module. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U15F3?

Yes, but get it checked soon

How much does it cost to fix U15F3?

The estimated repair cost for U15F3 is $17–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat