Hyundai Genesis (DH): Charging System / Battery Sensor Description and Operation

Description
Vehicles have many control units that need large amounts of electricity. These units control their own system based on information from diverse sensors. It is important to maintain a stable power supply as these sensors give 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.

   
When battery sensor signal fault occurs, check whether the parasitic draw is not abnormal (Refer to vehicle parasitic current inspection)
   
It takes a few hours for a new battery sensor to detect the battery state correctly.
Perform the following process after replacing the battery sensor.
1.
Turn the ignition switch ON/OFF.
2.
Leave the vehicle in parking mode for more than 4 hours.
3.
After 4 hours, check that the SOC (State of charge) of battery is displayed on GDS properly.
   
For the vehicle equipped with a battery sensor, be careful not to damage the battery sensor when the battery is replaced or recharged.

    Troubleshooting

    Removal 1. Disconnect the battery negative (-) cable. 2. Disconnect the battery sensor connector (A). 3. Remove the battery negative (-) cable after removing the bolts (B).

    Other information:

    Hyundai Genesis (DH) 2013-2016 Service Manual: Repair procedures

    Diagnosis With GDS 1. BSD system defects can be quickly diagnosed with the GDS. GDS operates actuator quickly to monitor, input/output value and self diagnosis. 2. Connect the cable of GDS to the data link connector in driver side crash pad lower panel, and turn on the GDS.

    Hyundai Genesis (DH) 2013-2016 Service Manual: General Safety Information and Caution

    Instructions When Handling Refrigerant 1. R-134a liquid refrigerant is highly volatile. A drop on the skin of your hand could result in localized frostbite. When handling the refrigerant, be sure to wear gloves. 2. It is standard practice to wear goggles or glasses to protect your eyes, and gloves to protect your hands.

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