Where is the low beam relay on a GM Truck?

The low beam relay is on the bulb side of the BCM, and so is the high beam, as it appears the high beam relay is operated by a relay on the BCM (which may not be a removable relay). Don’t see why it is also labeled PCM. Click to expand… soon as I get one, i’ll get on it. I’ll post later what I find. Thanks for your assistance!

Why are the high beam lights on my Silverado not working?

For a few weeks I am borrowing a Chevy Silverado truck whose high beam lights are not working and I’d like to take a try at fixing it. In old cars you could just follow wires and know where the problem was but I have no…

Why are my low beam headlights not working?

If a headlight fuse blows, it could cause the headlights to stop working. 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.

What to do if your low beams stop working?

My low beams suddenly stopped working. All the fuses are good. I swapped the relay and that was not the problem. The bulbs have less than 100 hours on them. I have read about similar problems. Was there a recall? What are my next steps? Any advice would be appreciated. Click to expand… Do your DRLs work?

What makes the low beams stay on in a Silverado?

I assume it’s splicing the tan lo beam wire to the yellow headlight feed wire just before the dimmer switch so that the lo beams stay on when the high beams are turned on? (I have the composite headlights.)

Where is the low high beam headlight dimmer switch?

As mentioned at the beginning of the article, the Low-High Beam Headlight Dimmer Switch is part of the Turn Signal Assembly. If you have already taking the steering column covers off, you’ve noticed that the turn signal switch has a lot of wires connecting to it.

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.

Is it safe to drive with high beams on?

No one wants to be driving along at night and have their headlights go out. In many cases, the high beams will still work when the regular headlights stop, but it’s just not safe to drive around with your high beams potentially blinding other drivers.

What to do if your low beams don’t work?

Either way, if your low beams aren’t working but your high beams are, the first things we check are the bulbs. If you’re thinking of replacing the headlight bulbs yourself, make sure you’re familiar with the correct installation procedure for the type of bulb you’re replacing.

Where are the fuses on a GMC Sierra?

The underhood fuse block in the engine compartment on the driver’s side of the vehicle near the battery. Lift the cover for access to the fuse/relay block. To remove fuses hold the end of the fuse between your thumb and index finger and pull straight out.

Is the driver’s side bulb on a Silverado F150 working?

Hopefully the Silverado makes it easier to replace them than on the Ford – the driver’s side bulb on the F150 is a real hassle to get at, I had to move some things around and still got my knuckles barked pretty good. sailorNovember 3, 2008, 10:51pm

Is there a high beam relay on a GM Truck?

Guys, I don’t see a high beam relay, there is a low beam relay, but no high beam. If the bulbs are good, the next check is to see if there is voltage at the sockets. Guys, I don’t see a high beam relay, there is a low beam relay, but no high beam. If the bulbs are good, the next check is to see if there is voltage at the sockets. Click to expand…

Where is the fuse box on a GMC Sierra?

The fuse block access door is on the driver’s side edge of the instrument panel. The center instrument panel utility block is located underneath the instrument panel, to the left of the steering column. The underhood fuse block in the engine compartment on the driver’s side of the vehicle near the battery.

Where are the fuse blocks on a GMC TopKick?

GMC Topkick (2006) – fuse box diagram Posted on 1 January 201725 October 2018by admin GMC Topkick (2006) – fuse box diagram Year of production: 2006 Instrument Panel Fuse Block There are two instrument panel fuse blocks located behind the instrument panel on the passenger’s side of the vehicle.

Where are the fuses in the Yukon XL?

See other GMC Yukon / Yukon XL: Cigar lighter (power outlet) fuses are located in the Engine compartment fuse box (see fuses “AUX PWR”, “CIGAR” / “CIG LTR” and “LBEC”), and since 2003 in the Passenger compartment fuse box (fuse “AUX PWR 2”).

Why are my high beam headlights not working?

In the case of high-intensity discharge (HID) headlights, or Xenon headlights, there’s an additional component. To get the xenon and salts to plasma state, the HID generator bumps the voltage up to 30,000 V, then stabilizes around 90 V when the bulb is in operation. If the generator fails, the bulb won’t light.

Why are the low beams on my truck not working?

My low beams suddenly stopped working. All the fuses are good. I swapped the relay and that was not the problem. The bulbs have less than 100 hours on them. I have read about similar problems.

Can a low beam headlight dimmer switch work?

Test Summary. 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.

Why is the high beam not working on my Silverado?

High beam not working on Silverado truck General Questions sailorNovember 3, 2008, 4:56pm #1 For a few weeks I am borrowing a Chevy Silverado truck whose high beam lights are not working and I’d like to take a try at fixing it.

How can I tell if my low beams are working or not?

The same lever that switches between lows and highs and for turn signals. If you’re in front of a wall or in your garage and pull the lever you can see that all come on while the lever is pulled back if the engine is running and the truck is in gear, even if the headlights are off.

Why are there no Hi beams on my Silverado?

Recently my 2010 Silverado no longer has high beam headlights, low beams work fine, fogs fine. Tried turning the switch from auto to manual, still nothing. Checked all the fuses, they all seem fine. Not sure where to go from here. I don’t think both bulbs quit simultaneously, but I guess this is possible.

Can a 2010 Silverado have high beam headlights?

New to this forum, seems like there is lots of good advice and tips here. Recently my 2010 Silverado no longer has high beam headlights, low beams work fine, fogs fine.