OBD Guide

B1A79

Remote Start Antenna Circuit Open Or Not Connected

B1A79 is an OBD-II diagnostic trouble code meaning: Remote Start Antenna Circuit Open Or Not Connected. Common causes: broken wires in the antenna harness, poor contact in antenna connector. Estimated repair cost: $56–167.

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

Symptoms

  • Remote engine start does not work
  • The key fob does not respond to start commands
  • Check Engine light comes on

Causes

  • Broken wires in the antenna harness
  • Poor contact in antenna connector
  • Remote start antenna malfunction
  • Wiring harness damage
  • Malfunction of the remote start control unit

How to Fix

  1. Check the integrity of the antenna wiring harness
  2. Check connections in antenna connectors
  3. Test the antenna for serviceability
  4. If necessary, replace the antenna or repair the wiring harness
  5. Clear and reset error code

Related codes

FAQ

What does the B1A79 code mean?

B1A79 is an OBD-II diagnostic trouble code that indicates: Remote Start Antenna Circuit Open Or Not Connected

What causes a B1A79 error code?

The most common causes of B1A79 include: Broken wires in the antenna harness; Poor contact in antenna connector; Remote start antenna malfunction; Wiring harness damage.

How do I fix a B1A79 diagnostic trouble code?

To fix B1A79: Check the integrity of the antenna wiring harness. Check connections in antenna connectors. Test the antenna for serviceability. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1A79?

Yes, but get it checked soon

How much does it cost to fix B1A79?

The estimated repair cost for B1A79 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat