I was wondering if anyone out there knows how to rewire our Evo/Lancer fog lights so that they will come on with only the parking lights and stay on with the bright lights? I did this with a previous car that I owned and it was great. I used the brights and fogs together for late night "bat outta hell" trips. Thanks

 

wire them to the parking light

 

Is this hard, have you done this? It sounds easy enough... wondering if I should go thru the relay box?

 

if you could find the lead wire from the switch and then patch it to the light dimmer switch it should work

 

sounds feasable. i'll try it thanks--- by the looks of your mods you must have a real monster on your hands! Which one of these mods would you recommend first? Any of these mods were you not really happy with? sorry off topic

 

tried to do this last night and was unsuccessful. I tried to wire fog lamp switch to dimmer with no luck. Someone please help!

 

Not sure if this is the case with the Evolution. But in my Focus, there was a relay that prevented the fog lights from being on with the high beams and prevented them from being on with only the parking lamps. But when you took it out and bridged the correct terminals you could turn the fogs on any way you wanted.

 

Saw this thread, and immediately thought of the focus fog light mod. I haven't found a way to make it work on the EVO yet, but haven't really tried all that hard.

 

The jdm car alows both on at the same time.. could it be as simple as a circuit adjustment for you guys? Would you like me to post a circuit diagram from the e7 gsr?

 

The fog lights are controlled by the front-ecu. Basically there is different software or configuration for the USDM car which disables the fog lights at any time other than when the low beams (main) are on.

Simply this is not an easy fix. Not that I looked at the shop manual and I don't see a configuration for non-US. My take on this is that there is either a different ECU or different software which can be loaded into the ECU.

 

I hope it's not that complicated strat. When I was trying to wire the fogs to the dimmer I was trying to get the switch power from the dimmer to switch the fogs, since the int/guage lights come on w/ oarking and everything else. The fuse I kept blowing was under the hood. It was the 7.5 fuse for the left taillight. At this point a circuit diagram would be as much help as anything, thanks jemm.

 

Strat has a point,
Here is the pinout of the US front ecu which is the same pinout as the Jap one according to my manuals.

I don't see any connectors for the foglamps..

 

In the front fuse box is the fog light relay. When you push the fog light button the ETACS-ecu sends a message over the simplified wiring communications bus to the front ecu. ETACS is behind the inside fuse panel. The front ecu will in turn turn on the lights, via the fog light relay, if conditions permit. I wouldn't be supprised that swapping in a non-US front ecu will permit the lights to function with just the parking lights, or with the high beams.

The simplified wiring bus is a serial bus which is used to reduce the volume and mass of wire in the vehicle. The Evo is very advanced as compared to just about everyone else. This is a technology which is used by BMW, MB and Volvo.

Pin one on the front ecu per my schematic is the control signal for the fog light relay.

 

Yeah strat, this US diagram clearly shows the Front-Ecu turning on the fogs via the foglight relay. The EVO VII is all different, they call them position lights in that manual, and i see no relay.

US EVO :

 

I just pulled the UK Evo VIII schematics for the fog light (and in this case they do call it that) and it is identical to the US. The diagram is not the same, but the wiring is.... Pin 1 from the ECU controls a relay.