Precautions For Trouble Diagnosis

WARNING: This page is about a different car, the 2019 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

Installation or removal of the connector must be done with the lighting switch OFF.
When the lamp is illuminated (when the lighting switch is ON), do not touch the harness, HID control unit, inside of the lamp or the lamp metal parts.
To check illumination, temporarily install lamp in the vehicle. Be sure to connect power at the vehicle-side connector.
If the malfunction can be traced directly to the electrical system, first check for items such as blown fuses and fusible links, broken wires or loose connectors, pulled-out terminals and improper connections.
Do not work with wet hands.
Using a tester for HID control unit circuit trouble diagnosis is prohibited.
Disassembling the HID control unit or harnesses (bulb socket harness, ballast harness) is prohibited.
Immediately after illumination, the light intensity and color will fluctuate this is normal.
When the bulb has reached the end of its lifetime, the brightness may drop significantly, it may flash repeatedly or the light may turn a reddish color.