OBD Guide
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C1256

EBCM Internal Malfunction

C1256 is an OBD-II diagnostic trouble code meaning: EBCM Internal Malfunction. Common causes: internal ebcm software failure, damage to the electronic components of the module. Estimated repair cost: $167–444.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–444 (est.)

Symptoms

  • ABS/ESP indicator is on
  • Disabling the ABS system
  • Disabling the ESP system
  • Loss of active safety features

Causes

  • Internal EBCM software failure
  • Damage to the electronic components of the module
  • Short circuit in wiring harness
  • Module power problems

How to Fix

  1. Carry out diagnostics with an OBD-II scanner
  2. Check the power supply and ground of the module
  3. Inspect the wiring harness for damage
  4. Try to reflash the module
  5. Replace EBCM if necessary

Related codes

C1255C1257C1260

FAQ

What does the C1256 code mean?

C1256 is an OBD-II diagnostic trouble code that indicates: EBCM Internal Malfunction

What causes a C1256 error code?

The most common causes of C1256 include: Internal EBCM software failure; Damage to the electronic components of the module; Short circuit in wiring harness; Module power problems.

How do I fix a C1256 diagnostic trouble code?

To fix C1256: Carry out diagnostics with an OBD-II scanner. Check the power supply and ground of the module. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1256?

Limited driving only, diagnose soon

How much does it cost to fix C1256?

The estimated repair cost for C1256 is $167–444. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat