Hyundai Sonata: Charging System / Battery Troubleshooting

Battery Repair procedures

Removal 1. Remove the air duct. (Refer to Engine Mechanical System - "Air Cleaner") 2. Disconnect the battery (-)terminal (A) and then (+)terminal (B). 3. Remove the TCM. (Refer to Autom ...

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 s ...

Other information:

Hyundai Sonata LF 2014-2019 Owners Manual: Headlamp delay function
If the key is removed from the ignition switch or placed in the ACC position or the LOCK/OFF position with the headlamps ON, the headlamps (and/or parking lamps) remain on for about 5 minutes. However, if the driver’s door is opened and closed, the headlights are turned off after 15 seconds. Ho ...

Hyundai Sonata LF 2014-2019 Service Manual: Fuel Sender Repair procedures
Removal 1. Remove the fuel pump. (Refer to Fuel Delivery System - "Fuel Pump") 2. Disconnect the fuel sender connector (A). 3. Remove the fuel sender (A) after releasing the fix hook. Installation 1. Install in the reverse order of removal. ...