fogs and brights
09-07-2007, 07:21 AM
#3
2nd Gear Member
Join Date: Mar 2007
Location: Boca Raton, FL
Posts: 284
RE: fogs and brights
hammeron is correct. You would have to trick the logic to the SJB module, but Ithought better of it to just bypass the darn thing for complete manual control of the fog lamps, regardless of the exterior light settings. This will allow you to turn the fog lamps on at any time using the stock switch. Keep in mind that this will work all the time, regardless of key position. If you want to have the lights turn off automatically with the engine, interrupt the wire I haveexplained belowin red with relay contacts, driven by the accessory2 circuit.
The red wire I have represents the modification you need to do. You will need to cut the wire between the main light switch, pin 6 and tie it to the wire at the SJB, pin 2. Be sure to insulate the wires that are no longer connected from the SJB.
Use a meter beforehand to verify that the wire at the headlamp switch pin 6 goes to ground when you activate the fog lamp switch. At the same time, the wire at pin 2 of the SJB should go to ground as well.
Sorry, I don't have any pictures. It's a hard process for such a small result.
The red wire I have represents the modification you need to do. You will need to cut the wire between the main light switch, pin 6 and tie it to the wire at the SJB, pin 2. Be sure to insulate the wires that are no longer connected from the SJB.
Use a meter beforehand to verify that the wire at the headlamp switch pin 6 goes to ground when you activate the fog lamp switch. At the same time, the wire at pin 2 of the SJB should go to ground as well.
Sorry, I don't have any pictures. It's a hard process for such a small result.
09-07-2007, 04:26 PM
#4
Cut & Paste Expert
Join Date: May 2007
Location: NW Arkansas
Posts: 13,322
RE: fogs and brights
ORIGINAL: ErcWrestlr
hammeron is correct. You would have to trick the logic to the SJB module, but Ithought better of it to just bypass the darn thing for complete manual control of the fog lamps, regardless of the exterior light settings. This will allow you to turn the fog lamps on at any time using the stock switch. Keep in mind that this will work all the time, regardless of key position. If you want to have the lights turn off automatically with the engine, interrupt the wire I haveexplained belowin red with relay contacts, driven by the accessory2 circuit.
The red wire I have represents the modification you need to do. You will need to cut the wire between the main light switch, pin 6 and tie it to the wire at the SJB, pin 2. Be sure to insulate the wires that are no longer connected from the SJB.
Use a meter beforehand to verify that the wire at the headlamp switch pin 6 goes to ground when you activate the fog lamp switch. At the same time, the wire at pin 2 of the SJB should go to ground as well.
Sorry, I don't have any pictures. It's a hard process for such a small result.
hammeron is correct. You would have to trick the logic to the SJB module, but Ithought better of it to just bypass the darn thing for complete manual control of the fog lamps, regardless of the exterior light settings. This will allow you to turn the fog lamps on at any time using the stock switch. Keep in mind that this will work all the time, regardless of key position. If you want to have the lights turn off automatically with the engine, interrupt the wire I haveexplained belowin red with relay contacts, driven by the accessory2 circuit.
The red wire I have represents the modification you need to do. You will need to cut the wire between the main light switch, pin 6 and tie it to the wire at the SJB, pin 2. Be sure to insulate the wires that are no longer connected from the SJB.
Use a meter beforehand to verify that the wire at the headlamp switch pin 6 goes to ground when you activate the fog lamp switch. At the same time, the wire at pin 2 of the SJB should go to ground as well.
Sorry, I don't have any pictures. It's a hard process for such a small result.
switch and add an external relay under the hood. Supply it with 12V and
feed the fogs with the normally open output. Wire the coil to one of the high
beams and ground the other side of the coil. When the high beams are on,
the relay turns on and supplies 12V to the fogs bypassing the SJB. Its a
lot easier than the above method. PM me for 07 headlight wiring diagrams
and a picture of how its done. This mod also allows the fogs to be used for
flash to pass as well.
[IMG]local://upfiles/69445/F2377E46824C4C47854C77FB374EB98B.jpg[/IMG]
09-07-2007, 05:42 PM
#6
1st Gear Member
Join Date: Jul 2007
Location:
Posts: 64
RE: fogs and brights
Well, having the brights on would nullify the foglights. The light from foglightsis dispersed very wide in a beam that is narrow top to bottom. They are aimed low so as to illuminate the sides of the road, and a very short distance in front. This is so that the driver can see the edges of the road in fog without light being reflected back to him from high in the front. High beams are the worst lights to use in a foggy condition for the same reason...Much of that light would be reflected back to the driver and make it difficult to see ahead. Same for driving in snow fall.
I drive with the foglights on at night most of the time, since they don't shine in the eyes of the drivers coming from the opposite direction. Some people still flash their brights at me though, I think because when they see four lights they assume I have my brights on. But I've seen GTs coming the other way against me with their foglights on and it's not intrusive at all.
I drive with the foglights on at night most of the time, since they don't shine in the eyes of the drivers coming from the opposite direction. Some people still flash their brights at me though, I think because when they see four lights they assume I have my brights on. But I've seen GTs coming the other way against me with their foglights on and it's not intrusive at all.
09-08-2007, 12:35 AM
#7
4th Gear Member
Join Date: Nov 2006
Location: Now in Sunny SOCAL
Posts: 1,308
RE: fogs and brights
+1 on adding a relay. No sense in hacking up your wiring harness.
ORIGINAL: 157db
I would not recommend the above mod. Leave the wiring the same for the
switch and add an external relay under the hood. Supply it with 12V and
feed the fogs with the normally open output. Wire the coil to one of the high
beams and ground the other side of the coil. When the high beams are on,
the relay turns on and supplies 12V to the fogs bypassing the SJB. Its a
lot easier than the above method. PM me for 07 headlight wiring diagrams
and a picture of how its done. This mod also allows the fogs to be used for
flash to pass as well.
ORIGINAL: ErcWrestlr
hammeron is correct. You would have to trick the logic to the SJB module, but Ithought better of it to just bypass the darn thing for complete manual control of the fog lamps, regardless of the exterior light settings. This will allow you to turn the fog lamps on at any time using the stock switch. Keep in mind that this will work all the time, regardless of key position. If you want to have the lights turn off automatically with the engine, interrupt the wire I haveexplained belowin red with relay contacts, driven by the accessory2 circuit.
The red wire I have represents the modification you need to do. You will need to cut the wire between the main light switch, pin 6 and tie it to the wire at the SJB, pin 2. Be sure to insulate the wires that are no longer connected from the SJB.
Use a meter beforehand to verify that the wire at the headlamp switch pin 6 goes to ground when you activate the fog lamp switch. At the same time, the wire at pin 2 of the SJB should go to ground as well.
Sorry, I don't have any pictures. It's a hard process for such a small result.
hammeron is correct. You would have to trick the logic to the SJB module, but Ithought better of it to just bypass the darn thing for complete manual control of the fog lamps, regardless of the exterior light settings. This will allow you to turn the fog lamps on at any time using the stock switch. Keep in mind that this will work all the time, regardless of key position. If you want to have the lights turn off automatically with the engine, interrupt the wire I haveexplained belowin red with relay contacts, driven by the accessory2 circuit.
The red wire I have represents the modification you need to do. You will need to cut the wire between the main light switch, pin 6 and tie it to the wire at the SJB, pin 2. Be sure to insulate the wires that are no longer connected from the SJB.
Use a meter beforehand to verify that the wire at the headlamp switch pin 6 goes to ground when you activate the fog lamp switch. At the same time, the wire at pin 2 of the SJB should go to ground as well.
Sorry, I don't have any pictures. It's a hard process for such a small result.
switch and add an external relay under the hood. Supply it with 12V and
feed the fogs with the normally open output. Wire the coil to one of the high
beams and ground the other side of the coil. When the high beams are on,
the relay turns on and supplies 12V to the fogs bypassing the SJB. Its a
lot easier than the above method. PM me for 07 headlight wiring diagrams
and a picture of how its done. This mod also allows the fogs to be used for
flash to pass as well.
09-08-2007, 12:58 AM
#8
5th Gear Member
Join Date: Oct 2006
Location: Baytown, TX
Posts: 3,115
RE: fogs and brights
if I actually mess with having the fogs and HB on at the same time I would like the following
change the bulbs the fogs use to a dual filament bulb so the fogs would have a high version too
so there would be
heads
fogs
heads+fogs
HB
HB+fogs
HB+HB fogs
the set it to turn on all the lights on the bright switch if the fogs are on
I think this would be a cool (although illegal) mod
the fogs are practicaly headlights but with differant reflector and a blocker so why not add a Highbeam filament to the fogs
change the bulbs the fogs use to a dual filament bulb so the fogs would have a high version too
so there would be
heads
fogs
heads+fogs
HB
HB+fogs
HB+HB fogs
the set it to turn on all the lights on the bright switch if the fogs are on
I think this would be a cool (although illegal) mod
the fogs are practicaly headlights but with differant reflector and a blocker so why not add a Highbeam filament to the fogs
09-08-2007, 08:33 AM
#9
Cut & Paste Expert
Join Date: May 2007
Location: NW Arkansas
Posts: 13,322
RE: fogs and brights
ORIGINAL: Ford_Dude
if I actually mess with having the fogs and HB on at the same time I would like the following
change the bulbs the fogs use to a dual filament bulb so the fogs would have a high version too
so there would be
heads
fogs
heads+fogs
HB
HB+fogs
HB+HB fogs
the set it to turn on all the lights on the bright switch if the fogs are on
I think this would be a cool (although illegal) mod
the fogs are practicaly headlights but with differant reflector and a blocker so why not add a Highbeam filament to the fogs
if I actually mess with having the fogs and HB on at the same time I would like the following
change the bulbs the fogs use to a dual filament bulb so the fogs would have a high version too
so there would be
heads
fogs
heads+fogs
HB
HB+fogs
HB+HB fogs
the set it to turn on all the lights on the bright switch if the fogs are on
I think this would be a cool (although illegal) mod
the fogs are practicaly headlights but with differant reflector and a blocker so why not add a Highbeam filament to the fogs
We already know that too high of wattage bulbs in the fog light
assemblies cause the little black light deflector to come unglued
and it drops to the bottom of the reflector.[:@]
Also the switch count would be high for such an application.
6 position rotary switch? I could just see going from heads
to HB+HB Fogs and having to pass thruall the positions inbetween.
It would look like close encounters of the 3rd kind.
