OBD Guide
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B26EA

Key Registration

B26EA is an OBD-II diagnostic trouble code meaning: Key Registration. Common causes: faulty ignition key, damaged reader antenna. Estimated repair cost: $56–167.

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

Symptoms

  • Engine won't start
  • Immobilizer indicator flashing
  • Error message in the on-board computer

Causes

  • Faulty ignition key
  • Damaged reader antenna
  • Problems with the immobilizer module
  • Open or shorted wiring harness
  • Problems with key programming

How to Fix

  1. Check the functionality of the ignition key
  2. Diagnose the reader antenna
  3. Check the immobilizer module and its connections
  4. Inspect the wiring harness for damage
  5. Reprogram keys using dealer equipment

Related codes

B26EBB26E9P0513

FAQ

What does the B26EA code mean?

B26EA is an OBD-II diagnostic trouble code that indicates: Key Registration

What causes a B26EA error code?

The most common causes of B26EA include: Faulty ignition key; Damaged reader antenna; Problems with the immobilizer module; Open or shorted wiring harness.

How do I fix a B26EA diagnostic trouble code?

To fix B26EA: Check the functionality of the ignition key. Diagnose the reader antenna. Check the immobilizer module and its connections. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B26EA?

Yes, but get it checked soon

How much does it cost to fix B26EA?

The estimated repair cost for B26EA is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat