Does anyone know what someone may have been trying to accomplish with wiring in a relay off of the ignition. pic attached. Looks like some of the old wires have been cut, so it may not be used anymore. What are the brown/white and black/white wires used for off of the ignition? @RAD4Runner


1986 Toyota 4Runner 22RE M/T

 

Car bomb. (Seriously; anyone who uses "vampire taps" doesn't plan on their work lasting very long.)

As Rad4Runner can explain, there is a shortcoming in the way the starter relay is wired in early (including '86) 4Runners/Pickups. That's obviously not your case, as you can start your vehicle even though the wires to the relay were cut.

If it were me, I'd figure out how the wires that are there work. There's probably a diagram on the case of the relay. Does the relay close with key-on ? Key to STArt? Do any of the remaining wires go anywhere? Time for your multimeter.

 

yeah, those vampire taps are going to be gone soon.

The brown/white wire runs to the 86 side of the relay and is then jumpered over to the 85 side and the black/white was cut and the side that comes off of the ignition runs into the 30 and the 87a outputs right in to other side of the black/white.

So it looks to me that they didn’t accomplish much. The 2 wires coming out of 85 and 86 have been cut, so I don’t know where the went before. 30 and 87a are always hot until something triggers the 85 or 86. So it looks like they are cutting power to the 87a black/white wire once the brown/white wire triggers the relay.

I guess the biggest thing for me is to understand what those 2 wires (brown/white and black/white) do?

 

Upon looking at my '87 FSM, the B-W wire goes to the starter relay, I do not see a BR-W anywhere on the ignition switch schematic?

 

I have the 87 FSM too and don’t see it listed. Anyone with an 86 FSM? Here is a better pic of the wire.

 

If there is no relay connected to it and truck works, just remove it. Make sure where vampire taps did not cut any strand of the stock wires.
If there is a relay connected to it, we need to see,hear, feel, smell exactly what happens as you turn accessory on, ignition on, and crank.


I find it hard to see words. A picture paints a thousand words. Please draw where all the wires go and exactly what color. Start with attached.

The "jump" between 86 and 85 is diode to eliminate "inductive kick" (Long story).

 

Found this from the12volt.com, says BR-W is IGN-2:

https://www.the12volt.com/installbay...tail/2108.html

 

@RAD4Runner Pic attached

 

To answer your orig question, I think the PO had a kill switch that energized that relay. When he removed the switch, he moved the black from 87 to 87a so the circuit stayed closed. If the black was always in 87a, the relay would have to be energized to kill the starter which makes no sense to have that constant draw with the ignition off.

 

OK like Paul22RE says above.
Either P.O. was planning to put in a kill switch or removed the kill switch (that's why pin 85 is not connected).

REPEAT:
If there is no relay connected to it and truck works, just remove it. Make sure where vampire taps did not cut any strand of the stock wires.
If there is a relay connected to it, we need to see,hear, feel, smell exactly what happens as you turn accessory on, ignition on, and crank.