I have this switch... its a 3 way.. HI, LO, OFF....

My problem is...everything works fine, but I want to hook up an LED light or small 12V bulb to the switch so when I have the fan running in either HI or LO position the RED light will also go ON...

My reason for this if I'm getting so "OLD" I cant remember what I had for breakfast... & the RED light will remind me I left the fan ON while I'm walking around the pits between runs at the local Drag Strip....

Any help would be very much appreciated....


the fan connector, and is designed to manually control the PWM coolant fan found on the 2005-2009 C6, Z06 and ZR1 Corvette. When the need arises to manually cool the radiator down, this module gives you complete control of the fan with the simple flick of a switch. This kit can be installed in less then one hour, once you decide on where you want to place the control switch. This switch matches the style and look of cockpit switches used on all the C6 Corvettes.

Comes with easy to follow installation instructions.





Installation instructions shown below...

The switch wiring can be installed easily, without the need to cut a hole in the firewall. The wiring can be fed thru the upper door jamb, driver or passenger side, and hidden under the weatherstrip door seal into the passenger compartment. The location of the switch can be anywhere desired. First, locate the fan connector on the passenger side, near the bottom of the fan shroud. Unplug the connector and insert the enclosed module into the connection being sure the connectors are fully seated. The module can simply hang there on the connectors. You can now run the switch harness from the module to the passenger compartment location where you want the switch positioned. Start by plugging the round connector into the receptacle in the module. Next, select a location for the switch. You will need to cut a 20mm hole (approximately 11/16”) into the panel you wish to insert the switch. Once you have installed the switch, run the wiring from the harness and insert the three female connectors as shown in the switch wiring detail below. Note RED wire is common, BLACK wire is High, GREEN wire is Low, and RED wire is Common +12V:

Once the switch wire connectors are attached, you are ready to go. Keep the switch in the center (O) “NORMAL” position for normal ECU fan control. Press the (I) to manually run the coolant fan on low, or the (II) to manually run it on high. Remember, manual control of the fan will make it run without the key in the ignition so be aware that you might kill your battery if left on for long periods of time. NOTE: There may be a coolant fan code set while the switch is in manual control, which will go away when switched back to normal mode.

 

The easiest way would be to wire a red light in series with the black wire for high speed and a green light in series with the green wire for low speed. Then when no light is on, you would be in the normal position. These lights could be mounted almost anywhere.

You can get small 12V lights at Radio Shack. You probably want something that is 1/4" or less.

You could use LEDs, but LEDs would require a resistor and would have to be wired in parallel. They could also bleed a little back into the circuit and cause a drain. A little more complicated.

 

Thank you sir I have already bought the 12v bulbs from Radio shack... I thought I could get it to work with only one bulb... but based on your post I will need 2 bulbs (which I have) they came 2 in a package (both are RED) but it doesnt matter as long as it is lit.

... I think I'm going to mount the switch in the center console.. and as you describe I'll wire a RED bulb in series ... one in the HI position & one in the LO position.. and mount both bulbs also in the center console right next to the switch... The bulbs will just press in if I drill a small hole (I think 3/8) or whatever it says on the instructions..that came with the bulbs..

Correct me if I misunderstood, but to work I will need TWO BULBS one for the LO and one for the HI speed of the fan...

Again thank you!! I was trying to get it to work using only one bulb... but 2 will not pose a problem....

 

I hope you can remember what the red light means. I fyou can remember where you left your car.

 

I'm going to use a magic marker & write on my hand the lane # and the words "SHUT FAN" I'm also going to use a can of spray paint pointing to the starting line

 

If all you want to do is to indicate when the switch is in either the high or low position, you could use one light.

You would have to wire the light in parallel with both the black and green wire. In order to stop voltage from feeding back to the position that was off, you would also have to add a diode on both wires.

Diodes are directional and will allow current to flow in only one direction. So when you connect them, make sure you allowing current to flow toward the light.



Hope this helps.

 

Excellent...even me who used to go to school on the "Short" bus can understand you wiring diagram.... I'm going to go with 2 bulbs a Green & RED for HI & LO....

So simple when you know what you are doing...