OBD Guide
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B27A1

Open In Driver Side Electrical Antenna Circuit

B27A1 is an OBD-II diagnostic trouble code meaning: Open In Driver Side Electrical Antenna Circuit. Common causes: broken antenna wiring harness, oxidation of antenna contacts. Estimated repair cost: $33–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • The system does not recognize the key or fob
  • Problems starting the engine
  • SRS malfunction indicator

Causes

  • Broken antenna wiring harness
  • Oxidation of antenna contacts
  • Antenna malfunction
  • Damage to the SRS central unit

How to Fix

  1. Check the integrity of the antenna wiring harness
  2. Clean and check antenna contacts
  3. Replace the antenna if necessary
  4. Prov elegans Discomfort to diagnose the central unit SRS

Related codes

B27A2B27A3

FAQ

What does the B27A1 code mean?

B27A1 is an OBD-II diagnostic trouble code that indicates: Open In Driver Side Electrical Antenna Circuit

What causes a B27A1 error code?

The most common causes of B27A1 include: Broken antenna wiring harness; Oxidation of antenna contacts; Antenna malfunction; Damage to the SRS central unit.

How do I fix a B27A1 diagnostic trouble code?

To fix B27A1: Check the integrity of the antenna wiring harness. Clean and check antenna contacts. Replace the antenna if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B27A1?

Limited driving only, diagnose soon

How much does it cost to fix B27A1?

The estimated repair cost for B27A1 is $33–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat