Hyundai Elantra (CN7): Charging System / Battery Sensor

Hyundai Elantra (CN7) 2021-2026 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.
2.
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")
4.
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.

    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.

    Other information:

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Rear Combination Lamp

    Repair procedures RemovalOutside Combination Lamp1.Disconnect the negative (-) battery terminal.2.Remove the combination lamp cover (A).3.Disconnect the rear combination lamp connector (A).4.Loosen the mounting nuts and remove the rear conbination lamp (A).

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Special service tools

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