Ahbustae86

I'm trying to splice the 5vz Park Neutral Switch 20(113) connector with the 3vz 8(IH2) PNS connector, but can't understand how the 3vz 8(IH2) is wired. Looking at connector 8(IH2), it seems like the B-O wires coming form the Combo Meter is coming from the engine harness and the B-O wires coming from the PNS is coming from the dash. It doesn't make any sense to me. Can someone guy in in the right direction. I was going to splice the 5vz 20(113) engine harness side to the 3vz 8(IH2) dash harness side, but not sure if it would work.
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QuickSilver74

i think the diagrams you are looking at are showing the wires that control the lights on the dash. look at the diagram for the starting circuit. mine was a black wire and a black with white stripe that was originally connected to the 3.4 NSS. i just cut and connected the 2 wires and that should do the trick to disable the neutral safety switch.

vasinvictor

iTrader: (3)

On the recipient, power comes from the starter relay. The park neutral switch allows power to pass (or not) from the IH1 22 wire to the "starter trigger wire" , "ECM STA", and the COR (Circuit opening relay (splices off IH1 15)). If the auto lever is not in the park or neutral position power it does not allow power to pass to those previously mentioned things.

On the doner vehicle it's the same theory. The power comes from the 7.5 amp "STA fuse" and goes into II3 2. If the auto lever is in the park or neutral position, it allows power to go through to II1 6 and then to the rest of the necessary things so the engine can start.

With that being said, I bypassed the switch too. Mine starts in any gear position. That way I could do all the wiring on my conversion harness, rather than splicing wires on the shifter itself. The way I wired it, is to take the power coming in from the IH1 22 on the recipient and pin it over to the II1 6 on the doner. This bypasses the park neutral switch on the new shifter. Then from the II1 6 wire, you can run you a leg to IH1 15 for the COR, run your starter trigger wire, and a wire to the STA terminal of the ECU (E12 2)

This is valid if you are using the doner's auto shifter and doner's auto a340f. This info is excessive and more for future searchers.

QuickSilver's suggestion may be the easiest of all. I did not consider that option and was focusing more on the whole scheme of things as far as wiring in the COR and starter trigger. Just seemed easiest at the time.

Ahbustae86

Thanks QuickSilver74, but I want the SN Switch to work properly. I have a 91 4runner auto and swapping in a 5vz wiith Auto trans. I'm confused as to how the 3.0 SN switch plugs into the ECU but ends on the dash harness side of the 8(IH2) connector. I'm thinking its an error made by the people who created the schematics, but not 100% sure.

vasinvictor

iTrader: (3)

OP, you're looking at entirely the wrong thing. You should be looking at the "STARTING" section of the EWD.

vasinvictor

iTrader: (3)

OP, where are you at in your swap? Have you got the motor in? Are you repinning the harness or making a conversion harness? Have you wired up any of the circuits yet?

aferg

Have a look at my notes on drop box:

http://dl.dropbox.com/u/68172725/89%...100%20auto.xls

I'm swapping a 95 T100 5VZ into an 89 Truck (both auto)

Hope it helps you out some.

If you want drop box, use this link to sign up you and I will get more space...
http://db.tt/9anPcfAW

aferg

I should have said my swap is not done yet... there are just my notes so far... :-)

your 4runner connectors IH1 and IH2 are called C1 and C2 in my notes (truck vs 4runner) and the color and pins may be off too...

Andrew

vasinvictor

iTrader: (3)

Your diagram is nicely laid out. If you keep updating that as you wire it up you'll have a nice reference when you're done. If your swap goes anything like mine you'll rewire 3 or 4 of these circuits about 10 different times before you find what works.

Ahbustae86

Vasinvictor- Motor is in, trans inbolted up to motor and about to finish my wiring. I really don't want my truck to start in any gear for safety reason's and not sure if those two connectors have anything to do with the ECT switch working properly.

aferg- I will look over your notes.

Thanks for the help.

aferg

I had a quick look for you,

This is what I think... Please use only as a reference only...

http://dl.dropbox.com/u/68172725/91%...%204Runner.doc

A.

vasinvictor

iTrader: (3)

ECT wires have to spliced in from the stock harness to the shifter itself and have their own body harness pins they'll run to. That's an easy circuit. So no ill effects of bypassing for that reason. You are using the doner shifter, right?

aferg- you have taken great time to try help with this, and your efforts will surely help someone understand this sooner or later. Greatly appreciated.