Contents:
| Items | Specifications | |
| Rated voltage | 5V | |
| Load | Max. 1mA (When head lamp lighting) | |
| Illuminations (LUX) | 50 | 1.42 ± 0.31V |
| 100 | 2.63 ± 0.58V | |
| 150 | 3.84 ± 0.84V | |

1. Auto light sensor
2. Head lamps
3. Lighting switch (Auto)
4. Tail lamps
5. BCM (Body Control Module)

1.Oprate the auto light swith, then check for continuity between terminals of multi-function switch connector.

| Switch Position | SwitcH Terminal | Resistance (Ω, ±3.5%) |
| OFF | 9-14 | 680 |
| AUTO / DRL | ∞ | |
| Tail lamp | 1680 | |
| Low beam | 1680 |
1.Disconnect the negative (-) battery terminal.
2.Remove the photo & auto light sensor (A) from crash pad upper side by using screw (-) driver.

3.Remove the auto light connector.
1.Reconnect the auto light connector.
2.Install the auto light sensor.
Hyundai Accent (HC) (2017 - 2022) Service Manual: Fuses
Your Hyundai Accent electrical system is protected from electrical overload by fuses. A fuse is designed to open the circuit if current becomes excessive, helping to prevent wiring damage and protecting electrical components. This vehicle has 2 (or 3) fuse panels depending on equipment: one located in the driver’s side panel bolster and another in the engine compartment near the battery.Hyundai Accent (HC) (2017 - 2022) Service Manual: Repair procedures
- Inspection Inspection Item • Battery efficiency inspection • Battery voltage inspection • Charging voltage insptection • General inspection • Terminal tightening state inspection • Engine/ transaxle ground state inspection • Wiring harness ground state inspection • Electrical Specified Value Inspection • Vehicle parasitic current inspection • Battery capacity inspection Battery Efficiency Inspection • Check that the battery cables are connected to the correct terminals.