Honda HR-V: Battery Management System - General Information
DESCRIPTION
12 VOLT BATTERY MANAGEMENT SYSTEM DESCRIPTION - COMPONENTS
12 Volt Battery Sensor
The 12 volt battery sensor is located between the 12 volt battery negative pole and the 12 volt battery ground cable.
.png)
12 VOLT BATTERY MANAGEMENT SYSTEM DESCRIPTION - CONTROL/FUNCTION
The 12 volt battery sensor measures 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.
.png)
After turning the vehicle to the OFF 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 sensor can alert the driver of over discharge condition when in the ACCESSORY position or automatically switch off room lamps through the MICU.
12 VOLT BATTERY MANAGEMENT SYSTEM DESCRIPTION - OVERVIEW
The 12 volt battery management system consists of the 12 volt battery sensor, the 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 the interior lights.
.png)
With moonroof
.png)
Without moonroof
.png)
.png)
12 VOLT BATTERY MANAGEMENT SYSTEM DESCRIPTION - SYSTEM DIAGRAM
.png)
CIRCUIT DIAGRAM
12 VOLT BATTERY MANAGEMENT SYSTEM CIRCUIT DIAGRAM
.png)
Fig. 1: 12 Volt Battery Management System Circuit Diagram
COMPONENT LOCATION INDEX
12 VOLT BATTERY MANAGEMENT SYSTEM COMPONENT LOCATION INDEX
.png)
With moonroof
.png)
Without moonroof
.png)
.png)
READ NEXT:
Charging System - Service Information
REMOVAL & INSTALLATION
ALTERNATOR REMOVAL AND INSTALLATION
Removal and Installation
1. 12 Volt Battery Terminal - Disconnect
2. Drive Belt - Remove
3. Positive Cable and Connector (Alternator) - D
Inspection & Adjustment
DRIVE BELT AUTO-TENSIONER INSPECTION
Inspection
1. Drive Belt Auto-Tensioner - Position Check
Turn the vehicle to the ON mode, and make sure to turn the A/C switch
OFF, then turn
the vehicle to
SEE MORE:
DTC U128D (Keyless Access Backup Control Unit) Backup Control Unit
Lost Communication With Gauge Control Module
NOTE: The DTC may be stored due to the grounding failure or the power source
failure at the transmitting
control unit (the grounding inspection and the power source inspection on each
control unit are required prior to
this checking process).
DTC (Backup Control Unit)
NOTE: If you are troubleshoo
DTC 2608 Rear Camera Diag
NOTE:
Check the vehicle 12 volt battery condition first.
This audio DTC sets when NG is indicated in the Rear Camera diagnosis
(the Rear Camera icon is red in
the System Links).
Before you troubleshoot, make sure to follow the General Troubleshooting
Information.
Check the connectors for p
