ok fog light mod experts....
check my logic here
2019 Electrical schematic attached
Looking at the 2019 diagram we can see that there is still an AND gate that only allows the fog light to receive power when
1) ECU PIN14 is at ground closing the TAIL relay
(AKA ECU senses that the Parking light or Headlights are powered on and then puts pin 14 at ground)
AND
2) ECU PIN 13 is at ground
AKA ECU senses that the fog light switch is the closed position.
Option 1)
Wire the pin on the FR FOG relay Coil that original goes to ECU PIN13 directly to the Fog light switch on the Switched ground side.
By using a relay tap on the relay pin and running a single wire through the main grommet on the fire wall to the fog light switch.
This would
Still allow one to control fog light on or off when the head lights are on likewise fogs would stay on even in hibeam mode.
You would still loose dash light indicator of fog light on/off
Option 2 the simplest MOD...MAYBE)
Wire FR FOG relay coil pin 13 directly to TAIL relay coil pin 14.
This would.
1) Have Fog lights come on and stay on if PARKING lights/or head lights are on regardless of hi/low beam position
2) believe this would result in a situation if you are running AUTO lights that DRLs would still work with Fogs being off while in DRL mode
3) fogs would auto illuminate if in AUTO the ECU decides to turn on headlights.
4) fog light switch would not control fog lights AKA fogs are controlled by headlight switch.
PROBLEM is ( motor off so one can hear relays close)
Sounds like the the tail relay ( TOWING TAIL marked relay) is in the under the hood fuse box; which would make sense since diagram shows 12+power coming in off of a junction connected to the alternator.
AND THE FRFOG RELAY is located behind the DASH....
