Charging System - Troubleshooting
In this manual: Charging System - Troubleshooting
~1min read
| Symptom | Possible Cause | Remedy |
| Battery charge warning light does not illuminate with ignition on and engine off | Blown fuse / Burned-out bulb / Loose wiring connection / Faulty electronic voltage regulator | Check the fuse / Replace the bulb / Restore the connection at the wiring terminals / Replace the voltage regulator |
| Battery charge warning light does not go out with engine running (battery requires prolonged charging) | Alternator drive belt loose or worn / Poor battery terminal contact due to corrosion, wear or loose attachment / Blown fuse / Blown fusible link / Faulty electronic voltage regulator or alternator / Wiring defect | Adjust belt tension or replace belt / Repair or replace terminals or wiring / Check fuse / Replace fusible link / Check alternator / Repair wiring |
| Battery discharged | Alternator drive belt loose or worn / Open circuit or loss of contact in wiring / Blown fusible link / Faulty warning light or field coil resistor / Poor ground connection / Faulty voltage regulator or alternator / Faulty battery | Adjust belt tension or replace belt / Repair or restore contact at connections / Replace fusible link / Replace components / Repair / Check alternator / Replace battery |
| High charging voltage (overcharging) | Faulty electronic voltage regulator / Wiring defect in voltage sensing circuit | Replace voltage regulator / Repair wiring |
Test yourself
A quick Hyundai Elantra CN7 quiz: every answer comes with an explanation and a link to the manual page.
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