5spd swap on my 97 limited need help!

[kolelt]

OP, another thing you can do if you cannot figure this out. Is, get a 97 manual engine harness. Swap that. Then get a 97 manual ECU. And thats it.

I actually have a 97 manual engine harness uncut in my garage. When i did my swap. I got a hold of a junk yard in PA. They sold me a 97 5vzfe 4x4 M/T ECU and engine harness for $250 shipped. Worst case scenario i was ready to swap the my old auto harness with the manual harness. But, figured repining was much easier for me. Plus i had a harness for reference !

 

[a4runner97]

This is what I think you need to do. You still currently have the 97 4runner dash harness? Right? So you still have the E12(H) plug. Take that plug, label all the wires, and repin those wires to 99 4runner plugs: E12(D) BLACK and E14(E).

This should basically make the 99 ecu accept your 97 dash harness.



Like i said before. There are two issues as i am not 100% sure. Functions BK and SDL on 97 4runner are no where to be found on 99 4runner ECU. But here is why i think BK and SDL are the same functions as STP and SIL on 99.



Now, let me ask you. Are the big huge plug on 97 ( the one like behind the glove box) the same as the 99? And if i remember correctly, isnt there a small plug next to the big one on the 97?

[MENTION=10169]TheDurk[/MENTION] could maybe confirm that function BK and SDL on 97 is the same as STP and SIL on 99.

And if so, id label everything, and try to repin it and hook it up. So yes, you would have 2 plugs, the rest of the pins on the 97 can just stay where they at. As that plug E12(H) wont go anywhere. I would not cut any wires nor from 97 and nor from the 99 harness. Just unlock the plug, and pull the pins out. Again, label everything, and tripple check it. And do one pin at a time. So if anything you can go back, backtrack your self. So in theory, i think you just need to repin one plug.

Here is a little story from experience on why labeling everything and checking everything over more then once is very important. Especially on a harness, because there are so many wires and some are same color. That is why it is important to repin one at a time. Anyways, my case is different then yours. I repined my auto harness to manual ECU rather then swapping the engine harness. So... i have everything labeled. Just finished repining the auto harness to manual ECU. Plugged the manual ECU, go to crank it over. NOTHING! Freaked out.... went back and reppined the plugs BACK TO AUTO PLUGS lol. I then again, plug back the old AUTO ecu and go to crank it over. NOTHING!!!! Now im really freaking out. Im looking over everything. Remembered that I unplugged the alarm brains. Plug the alarm brains back, and try to start the truck. BOOM it starts. Which means that I reppined it back to the same way it was before successfully lol. Then again, reppined the harness back to manual and was good hahaha.

( Don't worry about the paypal bud. I like to help and its fun )
I use https://techinfo.toyota.com

Wow! I'm speechless that you were able to do that let alone find diagrams and compare and chart it out. I will do exactly what you said and repin and label everything. I strongly insist you take something at least enough for some beer!

As for my above glove box plug I will compare them. I do have 3 plugs above the glove box....

 

[a4runner97]

I actually had to cut out a little more of the shift lever hole to get the manual and J-shift to fit. The manual cover went completely over the hole. Remember that you are going to either have to ground the starting circuit wire or run it over to the clutch to get it to start

If I were to cut the exact hole needed I'll have 2inches on the back side open to the elements the cover won't cover it

 

[a4runner97]

Dude, that's a thing of beauty. I couldn't have done any more as far as marrying those function codes. I would have just done the exact same thing. Then, to remove all doubt, trace where they go. BK and STP both end up at the stop-light switch, so good there. And SIL and SDL both end up at the OBDII connector, but then it gets weird. '97 goes to Pin 2 and '99 goes to pin 7. I have no idea why. It won't make any difference to the running of the engine, but could mess up any OBDII reading. So I would say if there is a problem, then repin that white wire on the OBDII connector to match the ECU. That said, I have no where near the skills to put up that diagram you did. Nice.

As far as that big plug behind the glove box, I assume that is the II3 connector: Engine Wire to Cowl Wire, a 24-pin 4-row job with a bail lock. According to my EWDs, they are physically identical '97 to '99 and should plug up, physically. I can't vouch that the individual wires marry. If I were doing it, I would put the two together, and note any color differences on the same pin. Then go back to the EWDs and see if it's a color change on the same function or a real issue.

That's sort of a pain because you have to guess what circuits are involved and then look them up. I don't know any easy way to do it.

I'll try to compare but I also light winging it plug it in if it doesn't work figure it out after haha

 

[a4runner97]

So i think, since OP swapped engine harness but kept his 97 dash harness. That he will only need to repin one plug. And if he fallows my repin chart (After doing one himself, not taking responsibility, and please do not cut wires) then i think everything will perfectly.

Now, what is this II3 plug your talking on a 99? Im looking at the EWD and i dont see a plug labeled II3? There are only I1 , I2, I3...

That's corect

 

[a4runner97]

OP, another thing you can do if you cannot figure this out. Is, get a 97 manual engine harness. Swap that. Then get a 97 manual ECU. And thats it.

I actually have a 97 manual engine harness uncut in my garage. When i did my swap. I got a hold of a junk yard in PA. They sold me a 97 5vzfe 4x4 M/T ECU and engine harness for $250 shipped. Worst case scenario i was ready to swap the my old auto harness with the manual harness. But, figured repining was much easier for me. Plus i had a harness for reference !

I'm sure with your guy's help we can get this to work!

 

[TheDurk]

So i think, since OP swapped engine harness but kept his 97 dash harness. That he will only need to repin one plug. And if he fallows my repin chart (After doing one himself, not taking responsibility, and please do not cut wires) then i think everything will perfectly.

Now, what is this II3 plug your talking on a 99? Im looking at the EWD and i dont see a plug labeled II3? There are only I1 , I2, I3...

It's listed on page 44, or page G under the chapter "Connector Joining Wire Harness and Wire Harness" in the front of the book. It's paper, or I'd post a link.

 

[TheDurk]

I'll try to compare but I also light winging it plug it in if it doesn't work figure it out after haha

You can do that. Circuits that go from the cab to the engine room without going through the ECU are not usually critical. Mainly lighting (tail, fog, turn and head), HVAC, speedo and some other sensors. 90% should work, I'm guessing.

 

[a4runner97]

It's listed on page 44, or page G under the chapter "Connector Joining Wire Harness and Wire Harness" in the front of the book. It's paper, or I'd post a link.

uh oh i dont think i have that much. i was only sent over ecu diagrams

 

[a4runner97]

You can do that. Circuits that go from the cab to the engine room without going through the ECU are not usually critical. Mainly lighting (tail, fog, turn and head), HVAC, speedo and some other sensors. 90% should work, I'm guessing.

my theory is if they plugs match up they should be for the same functions. unless my theory is wrong. they knew in advance people would be doing 5spd swaps didnt they!?!?!

 

[a4runner97]

Wires on the II3 connector (and the smaller one with it) were in different places between '97 and '99. I had to put different ends on a few wires to get them in the right places on my '99 truck using harness parts from a '97. It should be do-able, since he has an extra '97 harness now. And yes, some of the colors changed between those years. You will have to check each function.

-Charlie

Darn more work!?! so i gotta repin that big plug above the glove box?

 

[a4runner97]

Charlie, did you have an issue with the OBDII connector? That one intrigues me as I don't understand it.

EDIT: I did a little research. Pin 2 is for ECUs that use the J1850 protocol. Pin 7 is for those which use ISO 9141-2. I can only conclude that Toyota switched protocols between '97 and '99. Can anyone confirm that? I know my '99 always detects as ISO. If so, more wires than just Pin 2 to Pin 7 might have to be adjusted. Something might have to happen to 10 and 15.

Here are the functions by pin for the OBDII.


Pin Signal Description
2 J1850 Bus+
4 CGND GND
5 SGND GND
6 CAN High J-2284
7 ISO 9141-2 K-LINE Tx/Rx
10 J1850 Bus-
14 CAN Low J-2284
15 ISO 9141-2 L-LINE Tx/Rx
16 +12v Battery power

these are all located in the dash harness plug on the 97?

 

[a4runner97]

I actually had to cut out a little more of the shift lever hole to get the manual and J-shift to fit. The manual cover went completely over the hole. Remember that you are going to either have to ground the starting circuit wire or run it over to the clutch to get it to start

did you cut the front of the whole or rear? i know you have to cut the middle to make it one big hole thats a given. but as i measure it up it looks like the hole needs to go forward more? correct me if im wrong

 

[a4runner97]

[MENTION=10169]TheDurk[/MENTION] do you know what that III3 connector is for? Looks like I have too repin it as well

If I know what it's called I can find it on prodemand.com

 

[TheDurk]

[MENTION=10169]TheDurk[/MENTION] do you know what that III3 connector is for? Looks like I have too repin it as well

If I know what it's called I can find it on prodemand.com

I told you above. Engine Wire to Cowl Wire Connector. It connects stuff in the engine bay to things in the cab that do NOT involve the ECU.

 

[TheDurk]

these are all located in the dash harness plug on the 97?

No. It's not there at all. In fact, don't worry about the OBDII at all. I made a stupid. You still have the '99 ECU, and the '99 D7 connections, so everything will be fine just the way Koelt has it. Same signal going to the same pin.


Forget I mentioned it.

 

[St Runner]

I juist had to cut out the middle for mine. I would just cut out the middle for now and then install the transmission(without the gearshifts obviously), Then try to install the gearshifts once it is in place. Then you would only have to trim the minimum. I have a memory in my head of flipping the j-shift lever 180 degrees because the auto and manual transmissions line up differently but I would never trust my memory to actually chop your car up with! Some advise from someone who has chopped up way more things than i should have. Do not chop anything up unless you absolutely have too

 

[St Runner]

Easier with pictures, the auto shift lever is on the passenger side with the j-shift on the drivers side. The manual shift is on the drivers side with the J-shift on the passenger. Same j-shift case, but the shift lever is angled in the opposite direction

 

[a4runner97]

Easier with pictures, the auto shift lever is on the passenger side with the j-shift on the drivers side. The manual shift is on the drivers side with the J-shift on the passenger. Same j-shift case, but the shift lever is angled in the opposite direction

Thanks I just winged it and made a rectangle. Just enough for the shifter cover to fit over!

 

[a4runner97]

No. It's not there at all. In fact, don't worry about the OBDII at all. I made a stupid. You still have the '99 ECU, and the '99 D7 connections, so everything will be fine just the way Koelt has it. Same signal going to the same pin.


Forget I mentioned it.

Okay I just have to chart out the big plug above the glove box now and repin those two plugs! Today is clutch master tomorrow the tranny gets installed. Saturday is wiring day!