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Wiring Aftermarket Lights with Toyota FJ Cruiser Off Road Aux Switch
I have a Gobi Stealth rack with two sets of 1552 (PIAA 1500XT Driving) up front and one set of 1540 (1500XT Back up lamps) in the rear. I chose to do the no drill Gobi Light Install. These directions can be found around and I wont rehash them here. The purpose of this post is to show how to wire up aftermarked lights to the new Toyota FJ Cruiser Aux Light Switch. To start you need the FJ Aux Switch and the Pigtail Harness (if you dont want to solder direct to the switch). I got both of mine from Matt at TRDSOURCE.
Here is how to wire the switch. Holding the switch from the back (looking at the pins) with locking tabs on the right, I have numbered the pins top to bottom 1-6. Here is what they are:
Pin 1: Illumination Power for "Lights On" indicator light
Pin 2: Ground for Illumination circuit
Pin 3: Switch Power (taken from Marker Lamp Tap)
Pin 4: Line Out to Relay
Pin 5: Ground for Backlit Illumination Circuit
Pin 6: Illumination Power for Backlight
On the Harness side, cut the about 8" off the end (on the switch side). The colors are as follows:
Red with Blue Tracer: Pin 1
Black: Pin 2
Green with Purple Tracer: Pin 3
Red with Green Trace: Pin 4
Grey: Pin 5
Purple: Pin 6
Here is what I did. Essentially you want the switch backlit the under the same conditions you want to use your lights. For this I used RED wire in the picture and your marker light tap should be spliced to the purple AND green/purple trace wires. Now the relay feed wire and "Lights ON" illumination indicator will should both be powered when the switch is made. I used YELLOW wire for this in the picture. You need to connect the wire from your relay to the red/green wire and jump off it to the red/purple wire. Last are two grounds to the black and grey wires. You can either run a ground through the firewall or just find one under the dash.
The only thing you have to be careful of is the red/green trace wire. It looks like there is a diode shrink wrapped in line. I expect this is to prevent feeding power to the switch from the relay. If you swap the Pin 4 and Pin 3 wires it will not work since the 12V switch power that comes from the marker lamp tap wont get to the switch if you try to feed it through the red/green wire. So if you think you got it right make sure you didnt swap them.
Good luck
Jay
Here is how to wire the switch. Holding the switch from the back (looking at the pins) with locking tabs on the right, I have numbered the pins top to bottom 1-6. Here is what they are:
Pin 1: Illumination Power for "Lights On" indicator light
Pin 2: Ground for Illumination circuit
Pin 3: Switch Power (taken from Marker Lamp Tap)
Pin 4: Line Out to Relay
Pin 5: Ground for Backlit Illumination Circuit
Pin 6: Illumination Power for Backlight
On the Harness side, cut the about 8" off the end (on the switch side). The colors are as follows:
Red with Blue Tracer: Pin 1
Black: Pin 2
Green with Purple Tracer: Pin 3
Red with Green Trace: Pin 4
Grey: Pin 5
Purple: Pin 6
Here is what I did. Essentially you want the switch backlit the under the same conditions you want to use your lights. For this I used RED wire in the picture and your marker light tap should be spliced to the purple AND green/purple trace wires. Now the relay feed wire and "Lights ON" illumination indicator will should both be powered when the switch is made. I used YELLOW wire for this in the picture. You need to connect the wire from your relay to the red/green wire and jump off it to the red/purple wire. Last are two grounds to the black and grey wires. You can either run a ground through the firewall or just find one under the dash.
The only thing you have to be careful of is the red/green trace wire. It looks like there is a diode shrink wrapped in line. I expect this is to prevent feeding power to the switch from the relay. If you swap the Pin 4 and Pin 3 wires it will not work since the 12V switch power that comes from the marker lamp tap wont get to the switch if you try to feed it through the red/green wire. So if you think you got it right make sure you didnt swap them.
Good luck
Jay
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