Honda Pilot: 12 Volt Battery Management System Description - Components

12 Volt Battery Sensor

The 12 volt battery sensor is located between the 12 volt battery negative terminal and the ground cable.

12 Volt Battery Management System Description - Control/Function

Basic Control/Function

The 12 volt battery sensor measures 12 volt battery voltage, sensor temperature, and charge/discharge currents. According to these readings, 12 volt battery fluid temperature, internal resistance, and state of charge are sent as signals from the 12 volt battery to the gauge control module.

After the vehicle is turned to the OFF (LOCK) mode, the 12 volt battery sensor observes the charge state of the 12 volt battery. When a designated threshold is reached, a signal is sent through the LIN circuit interface and displayed on the gauge control module. As a result, the 12 volt battery sensor can alert the driver of over discharge when in ACCESSORY mode or automatically turn off interior lights through the MICU.

12 Volt Battery Management System Description - Overview

The 12 volt battery management system consists of the 12 volt battery sensor, gauge control module, and the MICU. The 12 volt battery sensor measures current, voltage, and temperature values of the 12 volt battery. This data is used to control interior lights.

With panoramic glass roof

Without panoramic glass roof

Wiper/Washer Switch Removal, Installation, and Test12 Volt Battery System Description - Control/Function