[AT] tractor hauler a pain to install headlights.

Sun Jan 19 19:06:29 PST 2020

The last car I had where I actually knew how it was wired was a ‘96 Cavalier.  It used a relay for the DRLs that put the two headlights in series, giving them 6 volts each.  It may have used the hi-beams, don’t remember.  In any case, there was a huge difference between the DRLs and the headlights on full power.  Again, as you say other cars may be different.  I’m unaware of an actual requirement for DRLs, so there may be no standard for brightness.

Jim Becker

From: Brian VanDragt 
Sent: Sunday, January 19, 2020 8:57 PM
To: 'Antique Tractor Email Discussion Group' 
Subject: Re: [AT] tractor hauler a pain to install headlights.

Yes it is 80%.  There is very little increase in brightness when I turn the light switch on.  Maybe its different on today’s cars, mine is 21 years old.  My DRL’s are not separate light bulbs, they are the actual headlights.

Brian

From: AT [mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Jim Becker
Sent: Sunday, January 19, 2020 9:49 PM
To: 'Antique Tractor Email Discussion Group'
Subject: Re: [AT] tractor hauler a pain to install headlights.

Yeah, what Brian said about DRLs, except maybe not at 80%.  Automatic lights respond to light levels and should turn on both front and rear.  Most if not all also have an instrument panel indicator so the driver can tell if the automatic lights are on.  They do not know when it is raining as light levels in rain are usually above the level that turns on the lights.  It is still up to the driver to turn on lights in the rain.

Jim Becker

From: Brian VanDragt 

Sent: Sunday, January 19, 2020 8:35 PM

To: 'Antique Tractor Email Discussion Group' 

Subject: Re: [AT] tractor hauler a pain to install headlights.

I don’t know how all the auto mode lights work, but my ‘99 Chevy Tahoe has daytime running lights and no auto mode.  Daytime running lights are the front headlights only and are always on at 80% brightness whenever the engine is running and the parking brake is not set.  I don’t consider these auto mode lights.  If I want my rear lights on and the headlights up to full brightness when it is getting dark or when it is raining, I have to turn my lights on manually.  Daytime running lights are to make oncoming traffic more visible in shaded areas.

Brian

From: AT [mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Gilbert Schwartz
Sent: Sunday, January 19, 2020 9:23 PM
To: Antique Tractor Email Discussion Group; Howard Pletcher
Subject: Re: [AT] tractor hauler a pain to install headlights.

Howard, I am glad to hear that on your escape. The last four vehicles I have had would not turn on the rear lights when the auto mode turned on the front lights. One of those vehicles was a pickup truck. Now I am wondering what condition turns the lights on in auto mode. Several years ago my wife was driving in a rainstorm while I was behind her. When we stopped I raised the roof because she had no lights on. She advised me real quick "I had them on auto mode". 
The next time you are out in the daylight take a look at the oncoming traffic and see how many have lights on the front but none on the rear, unless of course they are applying their brakes. 
I am guessing now that the insurance explanation says it all. I thought for sure that EPA had something to do with it. 
I guess I am just getting too old, I am one of those people that just don't matter anymore. 

  On January 19, 2020 at 8:02 PM Howard Pletcher <hrpletch at gmail.com> wrote: 

  ????  I don't think a dangerous situation like that can be industrywide.  My Ford Escape turns on both front and rear in the auto mode. 

  Howard 

  On Sun, Jan 19, 2020 at 8:50 PM Gilbert Schwartz < vschwartz1 at comcast.net> wrote: 

    While we are talking about vehicle lights, please, someone explain to me why or how anyone would want to have lights on the front of their vehicle with no lights on the rear. It appears that this condition is industrywide and seems to be always in the "AUTO" mode on the headlight switch.  

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