The TMX 155 uses a simple 12V DC system (with a battery) and AC headlights (depending on the market). The owner’s manual includes a color-coded wiring diagram. This is essential when your headlight dims at idle or your tail light fails.
Many TMX owners are second or third owners who never received the original booklet. This is a mistake. Here is why you need a PDF or physical copy of the today. Honda Tmx 155 Owners Manual
Do not use a 2005 manual for a 2024 bike. The engine is similar, but the electronics are not. The TMX 155 uses a simple 12V DC