Hyundai Santa Fe: Charging System / Battery Sensor. Repair procedures

Hyundai Santa Fe (TM) 2019-2025 Service Manual / Engine Electrical System / Charging System / Battery Sensor. Repair procedures

Removal

1.	Turn the ignition switch OFF and disconnect the battery (-) terminal.

2.	Disconnect the battery sensor connector (A).

Remove the battery sensor (A).

Tightening torque :

26.5 - 32.4 N.m (2.7 - 3.3 kgf.m, 19.5 - 23.9 Ib-ft)

Installation

Install in the reverse order of removal.

•	For the vehicle equipped with a battery sensor, be careful not to damage the battery sensor when the battery is replaced or recharged.

1)	When replacing the battery, the new battery should be of the same type, capacity and brand with the previous one. If a battery of a different type is replaced, the battery sensor may recognize the battery to be abnormal.

2)	When installing the ground cable on the negative post of battery, tighten the clamp to the specified torque. An excessive tightening can damage the PCB internal circuit and the battery terminal.

3)	When recharging the battery, ground the negative terminal of the booster battery to the vehicle body.

Adjustment

Battery Sensor Recalibration Procedure

After reconnecting the battery negative cable, AMS function does not operate until the system is stabilized, for about 4 hours. If disconnecting the negative (-) battery cable from the battery during repair work for the vehicle equipped with AMS function, Battery sensor recalibration procedure should be performed after finishing the repair work.

1.	Turn the Iginition switch ON and OFF.

2.	Park the vehicle for about 4 hours with the hood and all doors closed.

Battery Sensor. Description and operation

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