Hyundai Elantra: Charging System / Troubleshooting
Hyundai Elantra AD (2016-2020) Service Manual / Engine Electrical System / Charging System / Troubleshooting
| Troubleshooting |
| Symptom | Suspect area | Remedy |
| Charging warning indicator does not light with ignition switch "ON" and engine off. | Fuse blown | Check fuses |
| Light burned out | Replace light | |
| Wiring connection loose | Tighten loose connection | |
| Electronic voltage regulator | Disconnect the voltage regulator to see if light turns off. If light turns off, replace voltage regulator. | |
| Charging warning indicator does not go out with engine running. (Battery requires frequent recharging) | Drive belt loose or worn | Adjust belt tension or replace belt |
| Battery cable loose, corroded or worn | Inspect cable connection, repair or replace cable | |
| Electronic voltage regulator or alternator | Disconnect the voltage regulator or alternator to see if light turns off. If light turns off, replace voltage regulator. | |
| Wiring | Repair or replace wiring | |
| Overcharge | Electronic voltage regulator | Disconnect the voltage regulator to see if light turns off. If light turns off, replace voltage regulator. |
| Voltage sensing wire | Repair or replace wiring | |
| Discharge | Drive belt loose or worn | Adjust belt tension or replace belt |
| Wiring connection loose or short circuit | Inspect wiring connection, repair or replace wiring | |
| Electronic voltage regulator or alternator | Disconnect the voltage regulator or alternator to see if light turns off. If light turns off, replace voltage regulator. | |
| Poor grounding | Inspect ground or repair | |
| Worn battery | Replace battery |
Repair procedures
Inspection
Inspecion Item
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Battery efficiency inspection
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Battery voltage inspection
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Charging voltage insptection
•
General inspection
•
Terminal tighten ...
Alternator Description and Operation
Description
The Alternator has eight built-in diodes, each rectifying AC current to DC current.
Therefore, DC current appears at alternator "B" terminal.
In addition, the charging voltage of this ...
Other information:
Hyundai Elantra AD (2016-2020) Service Manual: Components and Components Location
Component Location
1. AVN4.0 head unit (8inch)2. Bluelink keyboard [4.0 (8inch)]3. External amplifier [4.0 (8inch)]4. Roof antenna5. Multimedia jack6. Wif & LTE Antenna [4.0 (8inch)]7. Steering wheel remote control8. Hands-free mic (Built-in overhead console)
...
Hyundai Elantra AD (2016-2020) Service Manual: Components and Components Location
Components
1. Front bumper cover 2. Front bumper side bracket [LH]3. Front bumper side bracket [RH]
...
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