---
title: "OBD2 Code: B12C5 Honda Smart key"
slug: b12c5
collection: obd2-codes
code: B12C5
url: https://fixmycar.pk/obd2-code-list/b12c5/
---
Possible failure area is Engine Start / Stop button, however low smart key battery or a bad Key decoder (antenna) can also cause this error. The smart key module is hidden behind the odometer.

![B12C5 Honda Smart key](/uploads/2020/09/3-4.jpg)