Is there a switch between high and low beams?
The high and low beams will have their own relay. The switch is only used to energize the relay, which then provides full power to the headlights. This is the device that “switches” between high and low beams.
Why do high beam headlights work but low beams don’t?
Most headlight systems are also designed with a relay that switches the power between low beam and high beam headlights. If this relay goes bad, it could allow power to the high beams, but not the low beams. 1. Headlight Bulbs This is the most common reason we see for why a car’s high beam headlights work but the low beams don’t.
How does a high beam light bulb work?
Get familiar with the fuses and relays that control your headlights. The headlight switch usually doesn’t control the headlight bulbs directly, but through one or more relays. The headlight switch powers a relay, which powers the headlight bulb. This protects the headlight switch from the high current used by the high beam headlights.
How to test if your high beams work?
Connect a fused (20A) between the multifunction switch C202a-7, circuit 632 (GY/OG), harness side and the multifunction switch C202a-8, circuit 15 (RD/YE), harness side. Place the headlamp switch in the HEADLAMPS ON position. Do the high beams illuminate? Yes INSTALL a new multifunction switch. TEST the system for normal operation. No
The high and low beams will have their own relay. The switch is only used to energize the relay, which then provides full power to the headlights. This is the device that “switches” between high and low beams.
Most headlight systems are also designed with a relay that switches the power between low beam and high beam headlights. If this relay goes bad, it could allow power to the high beams, but not the low beams. 1. Headlight Bulbs This is the most common reason we see for why a car’s high beam headlights work but the low beams don’t.
Connect a fused (20A) between the multifunction switch C202a-7, circuit 632 (GY/OG), harness side and the multifunction switch C202a-8, circuit 15 (RD/YE), harness side. Place the headlamp switch in the HEADLAMPS ON position. Do the high beams illuminate? Yes INSTALL a new multifunction switch. TEST the system for normal operation. No
What happens when the low beam dimmer doesn’t work?
The most common (and well, probably the only one) is usually the low beam headlights don’t work. In my personal experience, when the Low-High Beam Headlight Dimmer Switch has failed, you’ll only be able to roll around using the high beams only. Well, in this article, I’ll show you how to test it in a step-by-step way.