Fog Lights


July 7/2019


DRL wiring schematic

Looks like the fog lights are grounded through the headlight switch, so when you switch from low to high beam, low grounds the fogs but high doesn't.



August 15/2019

Ever notice how the fog lights only come on when the low beams are on? This is a common practice with vehicle makers. Here is a simple mod I saw
posted on Mazdas247 on how to make your fog lights work (with ignition power) even when the low beams aren't on.

Mod v1.0 (post #1)
tapping into the heated seat circuit to get an "igntion on" 12v source

Mod v2.0 (post #10)
Mod v2.0 (post#36)
tapping into the parking light circuit to get a "parking light on" 12v source




HIGH BEAMS
LOW BEAMS
FOG LIGHTS
Stock: OFF
OFF
OFF

OFF
ON
ON

ON
OFF
OFF

ON
ON (flash to pass) ON (flash to pass)




Mod v1.0: OFF
OFF
ON

OFF
ON
ON

ON
OFF
OFF

ON
ON (flash to pass)
ON (flash to pass)




Mod v2.0: OFF
OFF
ON

OFF
ON
ON

ON
OFF
OFF

ON
ON (flash to pass) ON (flash to pass)






September 21/2019


Fog lights on without low beams.

I chose to tap into the heated seat circuit. I cut the wires, crimped things back together and sealed the connections up with shrink-tube and electrical tape.


    
Remove the cover for relay box.




Remove the wire tab and the 10mm mounting bolt.




Remove the mounting bracket.




Pry off the bottom cover.




The two smaller relays are the one's we are working on.



              
Cut the red/green wire for the fog lights, and the pink wire for the seats.
The red/green wire from the harness can be bent back and taped off.
Attach the red/green wire coming from the relay to the pink wire.




Fog lights on with ignition on.




February 8/2020


About a month ago I noticed the fog lights were flickering; turning off an on randomly, and not turning on when I wanted them to. I figured my poor wiring
job failed, so I re-did everything and soldered all the connections. I then wiggled the wires a bit and the lights still flickered; turns out the pin for the fog light
relay wasn't making good contact with the relay, so I crimped it a bit tighter and all is good again.






February 27/2020



    
Ordered some Morimito 5700k 2Stroke bulbs from TheRetrofitSource.




March 22/2020







         




Installed the 2Stroke LED bulbs.



    




April 2/2020
















April 3/2020




How to access the back of the foglights
.



    
The panels (top/bottom).




Each panel has 3 screws and 2 plastic pins.




April 23/2020


Couple of output shots.....


Fogs only (stock). Fogs & low beams (stock).




April 30/2020


Couple more output shots.....


Fog Lights: Morimito 2stroke 5700K LED Low Beams: stock HID Hi  Beams Piaa 4000K incandescent:
No lights. Fogs. Low beams. Fogs and low beams. Low beams and hi beams.




If you have any comments, suggestions, or see any errors, please let me know..... cbradley@telus.net

Last updated on April 30/2020

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