PT Cruiser Forum  
Advertisements
       

Go Back   PT Cruiser Forum > General Forums > Exterior Accessories Forum

PT Cruiser Forum

Advertisements
Fog Lamp Circuit

 
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 02 Jan 2004, 09:57 pm
Fresh Cruiser
 
Join Date: Sep 2003
Location: MI.
Posts: 23
Default Fog Lamp Circuit

I want to defeat the circuit that turns the fog lamps off when the bright lights are turned on. Anyone know how?
Reply With Quote
  #2 (permalink)  
Old 03 Jan 2004, 12:08 am
Fanatic Cruiser
 
Join Date: Dec 2002
Location: Livingston, TX, USA.
Posts: 764
Default

From a quick look at the wiring diagram, it appears that the steering column switch is controlling your destiny. It appears you would have to redesign the switch to get the high beams and the fogs to come on at the same time.
__________________

2003 Almond GT AutoStick, body colored rear splash guards and hood struts, chrome gear shift, AC & vent knobs, billet steering wheel spokes and pedals, AMX1397 Turbo-Intake Pipe.
Reply With Quote
  #3 (permalink)  
Old 03 Jan 2004, 12:33 am
Senior Cruiser
 
Join Date: Jun 2003
Location: Alvaton, GA, USA.
Posts: 1,162
Default

I want to do this as well. I know in the Dakotas that you can remove the fog lamp relay under the hood and just stick a jumper in the plug and it will stay on with low and high-beams.No such luck finding that in the PT, so maybe it just can't be done.I never really looked any further than looking for that relay.If I could find a fog lamp relay, I bet I could work something out.If the relay turns the fogs on when it's energized, you could just run a trigger from the positive side of the high-beams and splice it into the existing trigger on the relay.You might need a diode in the line to keep from nackfeeding.I'de have to find the relay first.
__________________



\"They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.\"
Benjamin Franklin, Historical Review of Pennsylvania, 1759

www.cybermopar.com

TripleJack
Reply With Quote
  #4 (permalink)  
Old 03 Jan 2004, 02:17 am
Dedicated Cruiser
 
Join Date: Oct 2003
Location: Jacksonville, NC, USA.
Posts: 2,612
Default

Better check your state laws concerning fog lights, most have some type of restriction. a couple of examples:

Oregon's code reads:

http://www.odot.state.or.us/comm/news/2002021201.htm

Fog Lights: A vehicle may be equipped with two fog lights. The lights may be white or amber. The beam must strike the road not more than 75 feet ahead of the vehicle on which it is mounted. These lights are illegal to have in operation at times when you are required to dim your headlights.

Oregon adopted the federal automotive lighting standards (Division 108 Lighting), therefore all bulbs, replacement or not, have to meet the federal standard.

Idaho's code reads:

(2) Any motor vehicle may be equipped with not more than two (2) fog
lamps mounted on the front, at a height not less than twelve (12) inches nor
more than thirty (30) inches above the level surface upon which the vehicle
stands, and so aimed that when the vehicle is not loaded none of the
high-intensity portion of the light to the left of the center of the vehicle
shall at a distance of twenty-five (25) feet ahead project higher than a level
of four (4) inches below the level of the center of the lamp from which it
comes. Lighted fog lamps meeting these requirements may be used with lower
head lamp beams as specified in section 49-922(2), Idaho Code.

__________________

2002 Inferno Red PT Limited
Photos and more at: http://www.randgraphics.org/PT_Cruiser/demos/index.htm
Mercedes Wiki
Reply With Quote
  #5 (permalink)  
Old 03 Jan 2004, 04:04 pm
Senior Cruiser
 
Join Date: Jun 2003
Location: Alvaton, GA, USA.
Posts: 1,162
Default

Laws vary from State to State, but in most cases, the basics are that legally, they say you can only run fog lamps with the low-beams, and driving lights with the high-beams.Other specifics range from total frontal area of lighting, to certification, etc.
__________________



\"They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.\"
Benjamin Franklin, Historical Review of Pennsylvania, 1759

www.cybermopar.com

TripleJack
Reply With Quote
  #6 (permalink)  
Old 03 Jan 2004, 09:22 pm
Cool Cruiser
 
Join Date: May 2003
Location: South Bend, IN.
Posts: 473
Default

Don't run 'em both in Indiana.
I even received a ticket for that... waaaayyyyyy back in 1985.
Reply With Quote
  #7 (permalink)  
Old 04 Jan 2004, 03:55 am
Fanatic Cruiser
 
Join Date: Nov 2003
Location: Pensacola, FL, USA.
Posts: 733
Send a message via AIM to Rolo
Default

I cannot find anything in the Service Manual. Perhaps the toggling is done purely in the switch control..?
Reply With Quote
  #8 (permalink)  
Old 04 Jan 2004, 03:36 pm
Senior Cruiser
 
Join Date: Jun 2003
Location: Alvaton, GA, USA.
Posts: 1,162
Default

probably so, Rolo, but either way, there has to be a relay for the fog lamps somewhere in the car.If there wasn't, they would have to run full voltage through the dimmer switch, and they're not going to do that.The basic idea that I have is to locate the relay, and then use a 2nd trigger for it, so instead of it being a Single-Pull/Single-Throw Relay, it would in effect be a Double-Pull/Single-Throw.I mean, even if we can't locate it, all you would have to do is add a separate relay to the existing fog lamp circuit.You would run terminal 30 to the positive side of the battery, 87 would be power out to the existing power wires going to the lamps, 85 would be ground, and 86 could be triggered by the high-beams.You may or may not need a diode to keep it from backfeeding, but I think it would work fine without it.It'll be trial and error, and in case any of you try it, I am just thinking in my mind, so I make no guarantees.One thing you have to make sure of is if the system is a positive or negative ground.On many cars and trucks now, instead of switching the positive, they switch the negative.This *may* have allowed them to do away with the relay, since the dimmer would not have to carry voltage, but I doubt they did it that way.The way it would work if it were this way would be that they would have the positive always hot going to the fog lamps and simply open and close the negative.You could still use a relay to defeat this, but the wiring is kind of hard to explain.
__________________



\"They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.\"
Benjamin Franklin, Historical Review of Pennsylvania, 1759

www.cybermopar.com

TripleJack
Reply With Quote
  #9 (permalink)  
Old 04 Jan 2004, 10:40 pm
Cool Cruiser
 
Join Date: May 2003
Location: South Bend, IN.
Posts: 473
Default

Quote:
quote:Originally posted by Rolo

I cannot find anything in the Service Manual.
See page 8L-19:

MULTI-FUNCTION SWITCH
DESCRIPTION
MULTI-FUNCTION SWITCH
The turn signals are part of the multi-function
switch which contains (Fig. 26):
² Electrical circuitry for turn signals
² Hazard warning switch
² Headlamp switch
² Fog Lamp Switch
² Headlamp beam select switch
² Optical Horn
² Instrument Panel Lamp Dimmer/Interior Lamp
Switch
² Combination Flasher
The integrated turn signal switch assembly is
mounted to the left hand side of the steering column.


There's a whole chapter on the multifunction switch.

All the wiring is covered on pages 8W-50-2 & 4, 8W-50-8 & 9, 8W-40-16 & 17.

It's all in there. The relay is in the fuse box.
(ASE certification or a scanner will not help to find this information)

Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Check Engine Light came on - code 1188? coolvirus General Turbo Discussions 38 25 May 2011 09:01 am
Error Codes skylight Tech & Performance Forum 7 28 Apr 2011 03:34 pm
Error Codes thegoldpt Turbo Performance 6 07 Apr 2007 02:26 pm
Error Code List skylight General Turbo Discussions 6 07 Apr 2007 02:11 pm
Tranny She is a no-good! scottscars Stage Turbo Kits 15 16 Oct 2004 11:11 am


All times are GMT -5. The time now is 06:32 pm.




Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.
vB.Sponsors