Hyundai Elantra: 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
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General inspection
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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: Airbag Module Disposal Description and Operation
Airbag Disposal
When you scrap a vehicle equipped with an airbag, you must deploy it first.
When you deploy an airbag, you need to have a skilled
mechanic do the work. The used airbag should not be reinstalled in
another vehicle for reuse.
•
Upon deployment, the ...
Hyundai Elantra AD (2016-2020) Service Manual: Description and Operation
Description
System Overview
The System offers the following features:
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Human / machine interface through a 1-stage button, for terminal switching and engine start.
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Control of external relays for ACC / IGN1 / IGN2 terminal switching and STARTER, without use of mechanical ignition swit ...
