Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnosis System [10/2018 - ]
- DESCRIPTION
- Lighting system data and Diagnostic Trouble Codes (DTCs) can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.
- CHECK DLC3
- Check the DLC3.
Refer to GENERAL INFORMATION [09/2014 - ]
- Check the DLC3.
- INSPECT BATTERY VOLTAGE
- Measure the battery voltage.
Standard Voltage
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery.
- Measure the battery voltage.
- DIAGNOSIS SYSTEM
- If the lighting system malfunctions, the "Headlight System Malfunction Visit Your Dealer" warning message will be displayed on the multi-information display.
HINT:
In this case, the No. 1 headlight ECU sub-assembly LH stores DTCs.
Refer to DTC CHECK / CLEAR [10/2018 - ]
- If the lighting system malfunctions, the "Headlight System Malfunction Visit Your Dealer" warning message will be displayed on the multi-information display.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.