Hyundai Sonata: 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.

Battery Troubleshooting
Troubleshooting ...

Battery Sensor Repair procedures
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). Installation ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: A/C Pressure Transducer Description and Operation
Description The A/C Pressure Transducer (APT) converts the pressure value of high pressure line into voltage value after measuring it. By converted voltage value, engine ECU controls the cooling fan by operating it high speed or low speed. Engine ECU stops the operation of the compressor ...

Hyundai Sonata LF 2014-2019 Owners Manual: Headlamp, Position Lamp, Turn Signal Lamp and Side Marker Light Bulb Replacement
(1) Headlamp (Low) (2) Headlamp (High) (3) Turn signal lamp (4) Front side marker (5) Daytime running lamp/ Parking lamp Headlamp (Halogen bulb) WARNING Handle halogen bulbs with care. Halogen bulbs contain pressurized gas that will produce flying pieces of glass that could cause injuries if b ...

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