UKrunner

.....?

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dntsdad

I think that its called transfer indicator switch or something like that. I could be wrong but isnt it the same switch that is on the transfer case??

try this

http://www.toyodiy.com/parts/q.html

__________________
1992 Toyota Pickup
Ex-Cab
3.0 V6
4" Pro-Comp lift

eric-the-red

My fsm call it a 'ADD indicator switch'

__________________
2001 4Runner
4.30 ratio 1999 e-locked rear axle and front diff;
OME881/N91S front; OME891/N86 rear;
Tundra brake swap;
1" 4Crawler body lift;
63" 4Crawler SliderZ;
TJM T-15 with Warn M8000 winch and Amsteel blue synthetic line;
265/75R16 Nitto TGs or 255/85R16 Truxs MTs;
Cobra 75 WX ST cb;
Alinco DR635 VHF/UHF ham radio;
ham call sign license plates - VE7 EGC

UKrunner

Thats what I thought. I had to short this to get my 4x4 to work. I think my 3.4 ecu didnt have ADD.

yodathespian87

My problem with the ADD is that it was vaccum and the 3.4 doesn't have vaccum so I'm, putting manual hubs in.

__________________
86 Pickup 4x2, Manual (Sold)
87 Extra Cab Pickup 4x4, Manual (Sold)
93 4Runner 4x4, Manual, 3.4 Swap In progress
90 4Runner 4x4, Manual, Blown 3.0 (Stripping out for parts then to become a trail rig/camping/fun truck)
94 Lexus SC400, 1UZ, magnaflow exhaust, after market headlights, bought for parts for the swap into the 90 4Runner

dntsdad

your 4x4 will still work wont it? I thought just the light in the dash wouldnt work

__________________
1992 Toyota Pickup
Ex-Cab
3.0 V6
4" Pro-Comp lift

JonnyBoy

On my swap, ORS wired the indicator wire to the transfer case. I can't help you much, unfortunately, since I didn't build my harness, but it does go to show you don't need to wire in the indicator on the diff. As for the vacuum to the vsv, check out my thread...I may have a clear picture of the routing, and I used the original vsv's for my 3.0.

http://www.yotatech.com/f160/3-4-swa...eknraj-161816/

Sorry, I'd post the pictures if I could, but work computer blocks photobucket.

__________________
Jonny
1990 3.4 5spd 4Runner, 33" BFG KM2's

1983 5spd Shortbed, 35" BFG M/T's with no lift! Soon to be...who knows, but the 35's ain't stayin!

"If at first you don't succeed, skydiving's not for you."
-Unknown

yodathespian87

Yeah which I'nm not worried if it says that its in 4x4 or not, cause I would have just locked it in and kinda would remember that. I don't need all those lights telling me what I'm doing.

__________________
86 Pickup 4x2, Manual (Sold)
87 Extra Cab Pickup 4x4, Manual (Sold)
93 4Runner 4x4, Manual, 3.4 Swap In progress
90 4Runner 4x4, Manual, Blown 3.0 (Stripping out for parts then to become a trail rig/camping/fun truck)
94 Lexus SC400, 1UZ, magnaflow exhaust, after market headlights, bought for parts for the swap into the 90 4Runner

UKrunner

The wiring for this is really easy actually. The power for the system comes through the bulb, so you do need the 4x4 dash light in the circuit. The wire from the bulb goes to the 4x4 switch, then a wire from the 4x4 switch goes to the switch on the front diff, then the other wire on the diff switch goes to ground. At the join of the 4x4 switch to diff switch, a third wire goes to the coil of the add relay. Output of the relay goes to the 2wd and 4wd vsv's and thats about it.
Short the wires together for the diff switch and you dont need to connect the ecu.
Basically the 4wd shifter is the only switch now and it activates the relay.

If this makes zero sense, I'll search and post the schematic.

UKrunner

This makes no sense. If your engine has no vacuum then its either at WOT, off, or has about 2psi of compression in each cylinder.

Care to elaborate?