Hyundai Elantra: Charging System / Battery Sensor

Hyundai Elantra (CN7) 2021-2025 Service Manual / Engine Electrical System / Charging System / Battery Sensor

Description and operation

Description

Vehicles have many control units that use more electricity. These units control their own system based on information from diverse sensors. It is important to have a stable power supply as there diverse sensors giving a variety of information. Battery sensor is mounted on battery (-) terminal. It transmits battery voltage, current, temperature information to ECM. ECM controls generating voltage by duty cycle based on these signals.

Repair procedures

Removal

1.	Turn the ignition switch OFF.

Disconnect the battery (-) terminal (A).

Battery (-)terminal installation :

4.0 - 6.0 N.m (0.4 - 0.6 kgf.m, 3.0 - 4.4 lb-ft)

3.	Remove the battery. (Refer to Engine Electrical System - "Battery")

Remove the battery negative (-) cable after removing the bolts (A).

Battery sensor cable installation bolt :

10.8 - 13.7 N.m (1.1 - 1.4 kgf.m, 8.0 -10.1 lb-ft)

Installation

1.	Install in the reverse order of removal.

Battery

Description and operation Description1.The CMF (Closed Maintenance Free) battery is, as the name implies, totally maintenance free and has no removable battery cell caps...

Starting System

Other information:

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Manual climate control system

To defog inside windshield

[A] : Type A, [B] : Type B

1. Select any fan speed except “0” position.

2. Select the desired temperature.

3. Select the or position.