2008 Daytime running lights questions - Toyota RAV4 Forums
4.3 Exterior Tires, Wheels, Lights, Spoilers, Flares, Bars, Tow Hitches, etc.

User Tag List

Reply
 
LinkBack Thread Tools
#1 (permalink) Old 12-06-2012, 05:41 PM
Junior Member
 
Join Date: Dec 2012
Location: mi
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
(Thread Starter)
2008 Daytime running lights questions

Hello, I am new to this forum and have run into a problem with the wife's 2008 Rav4 limited (v6). The DRL's do not come on. Low beams and high beams function properly. Parking brake fully released and no DRL's

1) Do the DRL's operate off the high beams ( at a reduced voltage)?
2) Where are the relays located for the DRL's ?

Any suggestions on where to begin. I hate the idea of taking this into the dealer for something that is probably minor.
foghorn is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 12-06-2012, 05:55 PM
Advanced Member
 
Veliksam's Avatar
 
Join Date: Jan 2011
Location: Orlando
Posts: 3,092
Thanks: 240
Thanked 213 Times in 186 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Garage
Send a message via Skype™ to Veliksam
Question 1: yes, they are the same bulb as the high bean and work at a reduced voltage.

Question 2: the relay is located in the fuse/relay box under the hood on the passenger side, mine was a brown one with 5 pins. Maybe your relay is bad?

Sent from my HTC ONE X

-----2012 V6 Sport, Tow Prep, & 4x4-----
HU: JVC KW-NT800HDT & back-up cam,
JDM HID Projector Headlights w/Toshiba D4S Bulbs, JDM Vanguard Tail Lights
Front DRL's, LED Bumper Park/Brake lights,
Red "SPORT" Theme
------------------------------
Veliksam is offline  
#3 (permalink) Old 12-06-2012, 06:22 PM
Junior Member
 
Join Date: Dec 2012
Location: mi
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
(Thread Starter)
Found it!

thanks for the help . I went back to the car and played with the brake lever. Seems it was not totally disengaging and allowing the switch contacts to open or close. After a few tries, it seems to be working OK now.
foghorn is offline  
#4 (permalink) Old 12-08-2012, 08:14 PM
Advanced Member
 
Join Date: Feb 2012
Location: Long Island, New York
Posts: 554
Thanks: 4
Thanked 33 Times in 32 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by foghorn View Post
thanks for the help . I went back to the car and played with the brake lever. Seems it was not totally disengaging and allowing the switch contacts to open or close. After a few tries, it seems to be working OK now.
Hmmmm, I'd take this opportunity to make durn sure the parking brake is actually releasing completely.
ravenuer is offline  
#5 (permalink) Old 12-18-2012, 01:36 PM
Advanced Member
 
Carnivore's Avatar
 
Join Date: Nov 2006
Location: New Jersey
Posts: 509
Thanks: 1
Thanked 4 Times in 4 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
I'm having the same problem coincidentally. Mine seemed to stop working right after i had some minor body work done on the rear door area. The body shop guy claims he didn't disconnect the battery but i lost all my radio presets (but not the satellite receiver presets) so i know there was at least some kind of power loss. I was wondering if they somehow wiped the DRL programming from the computer and if so, how to get it back.

Meanwhile i will check the parking brake connection. What did you do, just jiggle the handle? My dashboard brake light goes out when i release the handle so it seems to be working normally.

Sent from my SAMSUNG-SGH-I727 using AutoGuide.Com Free App
Carnivore is offline  
#6 (permalink) Old 12-25-2012, 12:04 AM
Advanced Member
 
Carnivore's Avatar
 
Join Date: Nov 2006
Location: New Jersey
Posts: 509
Thanks: 1
Thanked 4 Times in 4 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Bump...

I checked DRL status with my new Techstream software and the daytime running light function is, in fact, enabled in the ECU but they still aren't coming on.

I'm most suspicious of the parking brake switch contacts since that's what foghorn narrowed it down to. But I jiggled the parking brake lever around to check for a loose connection but there was no response at all from the DRL. When I release the parking brake lever the dashboard brake light goes out normally. Does the DRL function use a different sensor/switch for the parking brake status than the one that controls the dashboard brake light?

Finally, if it doesn't come down to the parking brake switch contacts, is there a separate fuse controlling the daytime running lights? Separate from the regular headlight functions, that is? My low & high beams work normally when the lights are manually turned on.
Carnivore is offline  
#7 (permalink) Old 12-25-2012, 02:08 AM
Your Humble Administrator
 
JuneBug's Avatar
 
Join Date: Nov 2008
Location: Baton Rouge, LA
Posts: 9,932
Thanks: 63
Thanked 1,002 Times in 725 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Garage
Are you sure you HAVE daytime running lights? It was never standard equipment on the 4.3 except in Canada where it's mandatory. I have DRL's but they show up as a $40 option on the window sticker.

James
__________________

2008 Limited V6 2WD "The Silver Bullet"


JuneBug is offline  
#8 (permalink) Old 12-25-2012, 04:16 AM
Advanced Member
 
Carnivore's Avatar
 
Join Date: Nov 2006
Location: New Jersey
Posts: 509
Thanks: 1
Thanked 4 Times in 4 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by JuneBug View Post
Are you sure you HAVE daytime running lights? It was never standard equipment on the 4.3 except in Canada where it's mandatory. I have DRL's but they show up as a $40 option on the window sticker.
Yes it was an included option on mine and I'm quite used to seeing them working until recently.
Carnivore is offline  
#9 (permalink) Old 12-25-2012, 11:42 AM
Advanced Member
 
Rickl's Avatar
 
Join Date: Aug 2007
Location: Ontario
Posts: 1,148
Thanks: 7
Thanked 85 Times in 72 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Carnivore View Post
Does the DRL function use a different sensor/switch for the parking brake status than the one that controls the dashboard brake light?
The electrical diagrams show a single sensor/switch on the parking brake which connects to ground when the parking brake is activated. This signal is then sent to the ECM which in turn controls the PB warning light, and the operation of the DRL's. So if your warning light comes on/off as you operate the PB, then I think you can assume the PB is not the source of your problems.


Quote:
Originally Posted by Carnivore View Post
is there a separate fuse controlling the daytime running lights? Separate from the regular headlight functions, that is? My low & high beams work normally when the lights are manually turned on.
There are not separate fuses. The DRL's are actually the two high beams switched into a series circuit so that each one operates on 6volts. Because this is a series circuit, the DRL's will not operate at all if either high beam is burnt out.

I would just like to have you check a few things.
  • Are you absolutely sure that both of your high beams are working, and that when you turn on the high beams the light coming from the headlight isn't just the low beams remaining on. In other words do you see 2 filaments burning in each headlight housing.? The high beams are the bulbs closest to the center of the RAV.
  • Are your high beams at 100% brightness?
  • DRL's will not work if the regular headlights are turned on
  • DRL's will not operate unless the engine is actually running
  • DRL's will not work if the parking brake is on
  • Summary: Turn off regular lights, release parking brake, then start car. Do you have any lights at all?
There are 4 relays which control the headlights. Depending on your answers we can probably narrow that down a little.

Rick L Ontario Canada
2008 Silver RAV4 Limited V6 4WD
Rickl is offline  
The Following User Says Thank You to Rickl For This Useful Post:
Carnivore (12-26-2012)
#10 (permalink) Old 12-26-2012, 12:46 AM
Advanced Member
 
Carnivore's Avatar
 
Join Date: Nov 2006
Location: New Jersey
Posts: 509
Thanks: 1
Thanked 4 Times in 4 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Rick, I think you nailed it. I double checked and one of the high beam bulbs is burned out in normal operation. I had no idea the DRL curcuit ran the bulbs in series so when one burns out they both stop working. That would totally explain it.

I'll replace the bulb at my earliest opportunity and I expect that will solve the problem.

Thanks.
Carnivore is offline  
Sponsored Links
Advertisement
 
Reply

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome