OBD Guide

B3109

Keyless Entry Transmitter 1 Battery

Severity
Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–17 (est.)

Symptoms

  • Increased remote control distance
  • Unstable operation of the remote control
  • Complete failure of the key fob

Causes

  • Low battery key fob
  • Key fob malfunction
  • Receiver antenna problems

How to Fix

  1. Check and replace the battery in the key fob
  2. Test the key fob after replacing the battery
  3. Check the operation of the receiver antenna if necessary

Related codes

Error B3109 by Vehicle Brand