C0339 moderate

EPB Software Version Mismatch

The C0339 code means the vehicle's onboard diagnostic system has detected: EPB Software Version Mismatch. This is a moderate severity code.

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Keep driving?
Short distances only
DIY difficulty
hard
Estimated cost
$300 - $900 (parts and labor)
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Common Symptoms

  • Parking brake warning light on
  • EPB completely inoperative
  • Multiple EPB codes stored
  • Communication error with EPB module

Probable Causes (Ranked by Likelihood)

  • Failed EPB control module Very High
  • Damaged CAN bus wiring High
  • Low system voltage Moderate
  • Software update needed Low

Step-by-Step Diagnostic Procedure

  1. Check EPB module communication on scan tool

  2. Inspect EPB module power and ground circuits

  3. Check CAN bus wiring to EPB module

  4. Verify EPB module software version

Frequently Asked Questions

What does code C0339 mean?

C0339 indicates a fault with the epb software version mismatch system in your vehicle.

Can I drive with C0339?

You can drive short distances but have the system inspected soon.

How much does it cost to fix C0339?

Typical repair costs are $300 - $900 (parts and labor).

Sources

This page is built from documented references. Verify against your own service info before repair work.

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