OBD Guide

B27A2

Open In Front Passenger Side Electrical Antenna Circuit

B27A2 is an OBD-II diagnostic trouble code meaning: Open In Front Passenger Side Electrical Antenna Circuit. Common causes: broken wires in the antenna circuit, oxidation or poor contact in connectors. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • SRS/airbag indicator is on
  • Diagnostic system shows error B27A2
  • In some cases - incorrect operation of the airbag

Causes

  • Broken wires in the antenna circuit
  • Oxidation or poor contact in connectors
  • Damage to the antenna module
  • Short circuit in the circuit
  • Wiring harness damage

How to Fix

  1. Carry out diagnostics with an SRS scanner to confirm the code
  2. Visually inspect the wiring harness and antenna connectors
  3. Check the resistance in the antenna circuit
  4. If necessary, replace damaged wires or connectors
  5. Check the functionality of the antenna module
  6. Reset errors and check the system

Related codes

FAQ

What does the B27A2 code mean?

B27A2 is an OBD-II diagnostic trouble code that indicates: Open In Front Passenger Side Electrical Antenna Circuit

What causes a B27A2 error code?

The most common causes of B27A2 include: Broken wires in the antenna circuit; Oxidation or poor contact in connectors; Damage to the antenna module; Short circuit in the circuit.

How do I fix a B27A2 diagnostic trouble code?

To fix B27A2: Carry out diagnostics with an SRS scanner to confirm the code. Visually inspect the wiring harness and antenna connectors. Check the resistance in the antenna circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B27A2?

Do not drive — repair immediately

How much does it cost to fix B27A2?

The estimated repair cost for B27A2 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat