
If the main box light on your Optic Lighting YMS-TY01 Universal Ambient Light isn't illuminating, several factors could be at play, as outlined in the installation manual. Here's a troubleshooting guide
Potential Issues and Solutions
Solution Measure voltage between PIN1 (GND) and PIN2 (power) to verify a 12V supply (range 9~16V).
Solution: Switch from chassis grounding to wiring grounding.
Solution: Make sure the lamp head connector is firmly plugged in. If the light still doesn't work, consider replacing the lamp.


