TSX DRLs - need your help
#1
The Power of a Grill
Thread Starter
![Question](https://acurazine.com/forums/images/icons/icon5.gif)
I wrote hamsar and asked them about applications for DRLs on the acura TSX (high beams @60% reduction), and here is the response:
[I]Unfortunately we do not have any information on this application. In
order to advise you the compatible DRL for the Acura TSX 04-06, we will
require a wiring diagram showing the head lamps back to the dashboard.
I can then forward this to one of our engineers for review.
Please send the diagram to my email address or fax to my attention at
905 332-9020.
Marcela Uribe
Bilingual Customer Service
Hamsar Diversco
Tel 1800-567-5483
Fax 905-332-9020[/I
can someone with the diagram help me out? I do a lot of highway driving and would like to have DRLs on my car without having to turn on full HIDs.
[I]Unfortunately we do not have any information on this application. In
order to advise you the compatible DRL for the Acura TSX 04-06, we will
require a wiring diagram showing the head lamps back to the dashboard.
I can then forward this to one of our engineers for review.
Please send the diagram to my email address or fax to my attention at
905 332-9020.
Marcela Uribe
Bilingual Customer Service
Hamsar Diversco
Tel 1800-567-5483
Fax 905-332-9020[/I
can someone with the diagram help me out? I do a lot of highway driving and would like to have DRLs on my car without having to turn on full HIDs.
#2
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If the CDN model uses a DRL module, you might be able to buy one from Honda/Acura dealer. I remember the one for the Accord is about $150CDN.
Edit:
Found this thread, full DIY:
https://acurazine.com/forums/showthread.php?t=136827
Edit:
Found this thread, full DIY:
https://acurazine.com/forums/showthread.php?t=136827
#3
The Power of a Grill
Thread Starter
too much rewiring for CDN drl - it uses a light sensor and stuff. the one im looking at reduces light by 60% and is for high beams only. it shuts off @ lights on or with parking break, turns on and off with ignition. there is also one for HID and fogs, or just fogs, but i want the high beam lights @ 40%.
anyone have the wiring diagrams for high beams?
anyone have the wiring diagrams for high beams?
#4
Someone stole "My Garage"
I didn't think the CDN TSX has light sensors for the DRL's. I was alway sunder the impression that when I turn the car on, the DRL's are not on, until I put the parking brake down (then the DRL's go on -- 40-50% of high-beam power).
They only go off when low-beams are turned on, or car is turned off.
I don't see a need for a light sensor -- where did you hear/read that?
They only go off when low-beams are turned on, or car is turned off.
I don't see a need for a light sensor -- where did you hear/read that?
#5
Photography Nerd
![Agree](https://acurazine.com/forums/images/smilies/agree.gif)
San-Ant, I think the DRLs can be turned on by any honda/acura dealer with a Honda Diagnostics System computer (HDS). As far as I know, there isn't any special hardware needed, it's just an option that needs to be enabled in the car's software.
#6
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Originally Posted by Dan Martin
![Agree](https://acurazine.com/forums/images/smilies/agree.gif)
San-Ant, I think the DRLs can be turned on by any honda/acura dealer with a Honda Diagnostics System computer (HDS). As far as I know, there isn't any special hardware needed, it's just an option that needs to be enabled in the car's software.
#7
Originally Posted by moda_way
There is a relay, fuse and a few other things that would need to be done to the best of my knowledge.
The back-facing sensor looks for light coming into the cabin from cars behind you, and dims the rearview mirror accordingly. The TSX already has this sensor, because we have auto-dimming mirrors.
However, I know there also is a forward facing sensor in the Impala's mirror. I cant remember if this is used by the DRLs, but I can't think of any other reason to put one in that location.
But I think it is cheaper for Acura simply to not install the relay for U.S. cars. After you drive a car with DRLs, it's kind of like a passive safety feature that you miss having. I wish the Acura had it too.
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#8
Team Owner
iTrader: (1)
Originally Posted by Zoopa
I understand most others cars, like my Impala need the relay module. However, I do know that my Impala has sensors in the rearview mirror, front-facing and rear-facing, to adjust the dimming on the mirror, and possibly even for the DRLs.
The back-facing sensor looks for light coming into the cabin from cars behind you, and dims the rearview mirror accordingly. The TSX already has this sensor, because we have auto-dimming mirrors.
However, I know there also is a forward facing sensor in the Impala's mirror. I cant remember if this is used by the DRLs, but I can't think of any other reason to put one in that location.
But I think it is cheaper for Acura simply to not install the relay for U.S. cars. After you drive a car with DRLs, it's kind of like a passive safety feature that you miss having. I wish the Acura had it too.
The back-facing sensor looks for light coming into the cabin from cars behind you, and dims the rearview mirror accordingly. The TSX already has this sensor, because we have auto-dimming mirrors.
However, I know there also is a forward facing sensor in the Impala's mirror. I cant remember if this is used by the DRLs, but I can't think of any other reason to put one in that location.
But I think it is cheaper for Acura simply to not install the relay for U.S. cars. After you drive a car with DRLs, it's kind of like a passive safety feature that you miss having. I wish the Acura had it too.
These sensors have absolutely zero to do with DRLs. DRLs are designed to be on when the car is in motion during the day (so headlights off, parking brake off).
#9
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Originally Posted by Zoopa
But I think it is cheaper for Acura simply to not install the relay for U.S. cars. After you drive a car with DRLs, it's kind of like a passive safety feature that you miss having. I wish the Acura had it too.
I could argue the point of DRLs, but I'll leave it at saying, "Useless".
![2 Cents](https://acurazine.com/forums/images/smilies/2cents.gif)
Neat feature, but useless when everyone else on the road has them too.
#10
Someone stole "My Garage"
Originally Posted by CGTSX2004
Those sensors are solely for dimming the mirrors. The front facing sensor provides one reading and the rear sensor provides a separate reading. The front facing sensor is the baseine reading to establish the current level of ambient light. The rear sensor detects the appearance of light coming from the rear (such as headlights of a car behind you). The two readings are compared and if the rear sensor detects substantially more light than the front one, if knows to dim the mirrors.
These sensors have absolutely zero to do with DRLs. DRLs are designed to be on when the car is in motion during the day (so headlights off, parking brake off).
These sensors have absolutely zero to do with DRLs. DRLs are designed to be on when the car is in motion during the day (so headlights off, parking brake off).
And I really don't see why the US has been so slow to even think of adopting the DRL as standard equipment. It is a LOT safer having DRL's on the road (although took years for 90+% of cars to actually have them once the law was passed). Passing in low-light conditions, you know with good certainty if there are cars oncoming, whereas without DRL's, you are forced to try to look for slight color changes or whatnot, and the obviousness of a car in the oncoming lane is greatly diminished.
#11
Someone stole "My Garage"
Originally Posted by moda_way
Acura does have it, it just isn't a law here.
I could argue the point of DRLs, but I'll leave it at saying, "Useless".
Neat feature, but useless when everyone else on the road has them too.
I could argue the point of DRLs, but I'll leave it at saying, "Useless".
![2 Cents](https://acurazine.com/forums/images/smilies/2cents.gif)
Neat feature, but useless when everyone else on the road has them too.
??
Otherwise I don't even think the safety thing can be used as an argument against them - they've been proven safety-enhancers for years now.
#12
Someone stole "My Garage"
Edit to above post:
Safety studies: http://www.ibiblio.org/rdu/DRLs/studies.htm
And from http://www.iihs.org/research/qanda/drl.html
4. How effective are DRLs? Nearly all published reports indicate DRLs reduce multiple-vehicle daytime crashes. Evidence about DRL effects on crashes comes from studies conducted in Scandinavia, Canada, and the United States. A study examining the effect of Norway's DRL law from 1980 to 1990 found a 10 percent decline in daytime multiple-vehicle crashes.1 A Danish study reported a 7 percent reduction in DRL-relevant crashes in the first 15 months after DRL use was required and a 37 percent decline in left-turn crashes.2 In a second study covering 2 years and 9 months of Denmark's law, there was a 6 percent reduction in daytime multiple-vehicle crashes and a 34 percent reduction in left-turn crashes.3 A 1994 Transport Canada study comparing 1990 model year vehicles with DRLs to 1989 vehicles without them found that DRLs reduced relevant daytime multiple-vehicle crashes by 11 percent.4
In the United States, a 1985 Institute study determined that commercial fleet passenger vehicles modified to operate with DRLs were involved in 7 percent fewer daytime multiple-vehicle crashes than similar vehicles without DRLs.5 A small-scale fleet study conducted in the 1960s found an 18 percent lower daytime multiple-vehicle crash rate for DRL-equipped vehicles.6 Multiple-vehicle daytime crashes account for about half of all police-reported crashes in the United States. A 2002 Institute study reported a 3 percent decline in daytime multiple-vehicle crash risk in nine US states concurrent with the introduction of DRLs.7 Federal researchers, using data collected nationwide, concluded that there was a 5 percent decline in daytime, two-vehicle, opposite-direction crashes and a 12 percent decline in fatal crashes with pedestrians and bicyclists.8
Safety studies: http://www.ibiblio.org/rdu/DRLs/studies.htm
And from http://www.iihs.org/research/qanda/drl.html
4. How effective are DRLs? Nearly all published reports indicate DRLs reduce multiple-vehicle daytime crashes. Evidence about DRL effects on crashes comes from studies conducted in Scandinavia, Canada, and the United States. A study examining the effect of Norway's DRL law from 1980 to 1990 found a 10 percent decline in daytime multiple-vehicle crashes.1 A Danish study reported a 7 percent reduction in DRL-relevant crashes in the first 15 months after DRL use was required and a 37 percent decline in left-turn crashes.2 In a second study covering 2 years and 9 months of Denmark's law, there was a 6 percent reduction in daytime multiple-vehicle crashes and a 34 percent reduction in left-turn crashes.3 A 1994 Transport Canada study comparing 1990 model year vehicles with DRLs to 1989 vehicles without them found that DRLs reduced relevant daytime multiple-vehicle crashes by 11 percent.4
In the United States, a 1985 Institute study determined that commercial fleet passenger vehicles modified to operate with DRLs were involved in 7 percent fewer daytime multiple-vehicle crashes than similar vehicles without DRLs.5 A small-scale fleet study conducted in the 1960s found an 18 percent lower daytime multiple-vehicle crash rate for DRL-equipped vehicles.6 Multiple-vehicle daytime crashes account for about half of all police-reported crashes in the United States. A 2002 Institute study reported a 3 percent decline in daytime multiple-vehicle crash risk in nine US states concurrent with the introduction of DRLs.7 Federal researchers, using data collected nationwide, concluded that there was a 5 percent decline in daytime, two-vehicle, opposite-direction crashes and a 12 percent decline in fatal crashes with pedestrians and bicyclists.8
#14
The Power of a Grill
Thread Starter
Originally Posted by CGTSX2004
Those sensors are solely for dimming the mirrors. The front facing sensor provides one reading and the rear sensor provides a separate reading. The front facing sensor is the baseine reading to establish the current level of ambient light. The rear sensor detects the appearance of light coming from the rear (such as headlights of a car behind you). The two readings are compared and if the rear sensor detects substantially more light than the front one, if knows to dim the mirrors.
These sensors have absolutely zero to do with DRLs. DRLs are designed to be on when the car is in motion during the day (so headlights off, parking brake off).
These sensors have absolutely zero to do with DRLs. DRLs are designed to be on when the car is in motion during the day (so headlights off, parking brake off).
but back to my original qeusiton: can somebody scan the wiring diagrams for the high beams? or does anybody know where i can get one?
#15
Team Owner
iTrader: (1)
Originally Posted by San-AnT
i know that in my old car, the sensor on the dash would switch the car from DRL to full nighttime lights (full low beam, parking, etc.) depending on the light output.
#16
Photography Nerd
Originally Posted by San-AnT
but back to my original qeusiton: can somebody scan the wiring diagrams for the high beams? or does anybody know where i can get one?
#18
Photography Nerd
I can't figure out a few things from the schematic:
1) What does the Relay Control Module look like?
2) The only difference between the two shchematics is the CDN-spec cars have a DRL relay and a couple extra fuses. What tells the relay to activate? Maybe this is where the reprogramming of the computer comes in with the HDS module.
1) What does the Relay Control Module look like?
2) The only difference between the two shchematics is the CDN-spec cars have a DRL relay and a couple extra fuses. What tells the relay to activate? Maybe this is where the reprogramming of the computer comes in with the HDS module.
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#20
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Originally Posted by curls
In the United States, a 1985 Institute study determined that commercial fleet passenger vehicles modified to operate with DRLs were involved in 7 percent fewer daytime multiple-vehicle crashes than similar vehicles without DRLs.5 A small-scale fleet study conducted in the 1960s found an 18 percent lower daytime multiple-vehicle crash rate for DRL-equipped vehicles.6 Multiple-vehicle daytime crashes account for about half of all police-reported crashes in the United States. A 2002 Institute study reported a 3 percent decline in daytime multiple-vehicle crash risk in nine US states concurrent with the introduction of DRLs.7 Federal researchers, using data collected nationwide, concluded that there was a 5 percent decline in daytime, two-vehicle, opposite-direction crashes and a 12 percent decline in fatal crashes with pedestrians and bicyclists.8
The story sounds good for DRLs, but statistics can be used to tell any story you want them to.
#21
The Power of a Grill
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Originally Posted by Dan Martin
See the post above you...
doh!
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#22
The Power of a Grill
Thread Starter
Originally Posted by moda_way
The story sounds good for DRLs, but statistics can be used to tell any story you want them to.
99% of all statistics are wrong
#25
The Power of a Grill
Thread Starter
I ordered the hamsar 45035 module ( http://www.hamsar.com/drlkits.htm#1 ) today. According to the engineer over at hamsar, everything should wire in easily. I'll keep everyone updated when this gets installed. thanks again JTso for the scans.
BTW, i have Nokya Hyper yellow h1's on my car - part of the reason i want the drls on my high beams.
![Thumbs Up](https://acurazine.com/forums/images/smilies/thumbsup.gif)
BTW, i have Nokya Hyper yellow h1's on my car - part of the reason i want the drls on my high beams.
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#27
Senior Moderator
I'm bringing this out from the dead. Reason being: purchased a 2007 black / black TSX from the States and will be importing it to Canada next week. I have 45 days (from time of entry) to get DRLs to work on the car such that I comply with Canadian laws.
Anyone get this project to work? Any help would be greatly appreciated!
Anyone get this project to work? Any help would be greatly appreciated!
![Smile](https://acurazine.com/forums/images/smilies/smile.gif)
#28
Thanks for brining this back out from the dead. I would like to install DRLS too, my previous car had them and it is one less thing to turn on (after okaying the Navi), safety is not a concern.
Is there a distributor for the Canadian parts mentioned earlier in this thread?
Is there a distributor for the Canadian parts mentioned earlier in this thread?
#29
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