| 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
Alternator Description and OperationHyundai Elantra AD (2016-2020) Owners Manual: Rear Combination Light Bulb Replacement
â– Type A
Type A
(1) Tail lamp
(2) Stop/Tail lamp
(3) Turn signal lamp
(4) Side marker
(5) Back-up lamp
â– Type B
Type B
(1) Stop (LED)
(2) Tail lamp (LED)
(3) Turn signal lamp
(4) Side marker (LED)
(5) Back-up lamp
Outside lamp
1. Open the trunk lid.
2. Remove the service co ...
Hyundai Elantra AD (2016-2020) Service Manual: Automatic Transaxle Repair procedures
Removal
1.
Remove the engine cover.
(Refer to Engine Mechanical System - "Engine cover")
2.
Remove the air cleaner assembly and air duct.
(Refer to Engine Mechanical System - "Air cleaner")
3.
Remove the battery and battery tray.
(Refer to Engine Electrical System - "Battery")
4 ...