Jump to content
SAU Community

Recommended Posts

Like the title says, ISO wiring diagram for the A/T R32 4 speed. I can't seem to find one anywhere. Since I can't find the harness, I'm going to see if I can just snip some connectors off of my old chassis harness and re-pin them for the various wires. 

If anyone's got a lead on the diagram that'd be amazing. Also, can someone throw up a picture of their fuse box? There's 4 plugs on the side for the autos, I want to see what plugs go where. I'm assuming 3 plugs are for the transmission inputs since there's 3 sets of wires, the other plug I'm assuming is either alternator or something else?

 

Thanks!

 

Link to comment
https://www.sau.com.au/forums/topic/472511-iso-at-wiring-diagram/
Share on other sites

I've included some pictures of the cut wiring. The moron prior snipped the connectors off and hard wired a lot of things. I wish I had taken a look before undoing this. Unfortunately it was so jacked up that nothing matched. To add insult to injury, the new chassis harness and the old chassis harness TCM plug wiring colors are different. They were both A/T so I'm assuming different year or different trim? The new chassis harness supports more things my old one didn't (EGT probe) and some power options. 

I've identified the brown + black wire as going to a connector and I fortunately had a spare pigtail I can make work that fits the bottom plug on the fuse box. Though I still have the 3 sets of wires. I'm assuming they're 7 pin, 7 pin, 3 pin. There's terminals on the fuse box for just that.

If someone would be kind enough to check under the hood, trim back some of the wire and just take a picture of all three plugs from the transmission side going in so I can see what wires go to what pins. I still need a pigtail for a 7 pin plug which is missing. I wonder if it's possible to convert a male pin plug to female?

20171027_134255.jpg

20171027_134250.jpg

20171026_163100.jpg

Minor progress has been made. Old chassis harness was part # 24010-03U10 (CA18i motor) and the new GTS-T harness is part #24014-01U11 (RB20DET motor). If it's any consolation, if anyone needs to look up part numbers for their harnesses use the following link:

http://jp-carparts.com/nissan/carlist.php?maker=nissan

Update: The brown and black wire go to the inhibitor switch. If you look at the picture uploaded, it's the plug on the bottom of the fuse box. 

For those doing the M/T swap you'll know that you can merely bridge this connector with a single wire and two space connectors. It'll allow you to start the car. For us slush box guys, the same principle applies. Though frankly, every wire should have a home in my opinion. 

The other plug I discovered is the gear selector. I'm still yet to find any sort of TCM pin out nor is there anyone who's even cut the plug off and dissected it, however what I do know is that you can use the male end (chassis side) to tap into the reverse lights. From what I've read it's a red wire and a green with white stripe wire which are for reverse. 

All that's left is to deduce what the other wires are. Similarly, I looked closer under the car, there's a shielded cable with a red and white wire coming off of it. Previous owner cut it back and tied in another wire to the shielding wire. Not sure what the purpose was, if anyone has any clue it'd be helpful.

Also....what the hell is the 3 wire plug on the fuse box go to and what does the brown plug go to?! It's driving me nuts!

Inked20171026_163100_LI.jpg

Inked20171026_163100_LI.jpg

I had significant difficulty finding any kind of pinout for the TCM, however this will prove helpful to anyone with an A/T transmission.

 

Nissan RE4R01A Transmission Pinouts


Nissan RE4R01A Socket
Nissan RE4R01A Plug

 

This Socket is on the Transmission Loom
and on the Tester's Computer side.

 

 

This Plug is on the Vehicle's Computer Loom
and on the Tester's Transmission side.

 

  1     2     3     4  
  5     6     7     8  
  4     3     2     1  
  8     7     6     5  
Pin Use Socket 
Wire Colour
Plug 
Wire Colour
       
1 Solenoid "B" Yellow Green        
2 Solenoid "A" Green Green/Black trace        
3 Overrun Solenoid * Grey Green/Yellow trace        
4 Pressure Solenoid + Red Green        
5 Lockup Solenoid Blue Green/Red trace        
6 Temp Sensor White Green/White trace        
7 Temp Sensor Black Yellow/Red trace        
8 4WD Temp Switch            
* Activates Upon Various Throttle Openings 
* Note: Apply power to Overrun Solenoid (To be Off)
+ Pulse Modulation Controlled By Computer
 
 
In addition to this I'm working on the gear selector wires which I will do a separate diagram for.
 

@niZmO_Man the wire colors on the plug don't match the above, however based on the pin locations alone I assume they serve the same purpose. 

I will transpose another diagram with the grey plug and again the brown plug. 

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • I have no hard data to report, but I have to say, having driven it to work and back all week, mostly on wet roads (and therefore mostly not able to contemplate anything too outrageous anywhere)..... it is real good. I turned the boost controller on, with duty cycle set to 10% (which may not be enough to actually increase the boost), and the start boost set to 15 psi. That should keep the gate unpressurised until at least 15 psi. And rolling at 80 in 5th, which is <2k rpm, going to WOT sees the MAP go +ve even before it crosses 2k and it has >5 psi by the time it hits 90 km/h. That's still <<2.5k rpm, so I think it's actually doing really well. Because of all the not-quite-ideal things that have been in place since the turbo first went on, it felt laggy. It's actually not. The response appears to be as good as you could hope for with a highflow.
    • Or just put in a 1JZ, and sell me the NEO head 😎
    • Oh, it's been done. You just run a wire out there and back. But they have been known to do coolant temp sensors, MAP sensors, etc. They're not silly (at Regency Park) and know what's what with all the different cars.
    • Please ignore I found the right way of installing it thanks
    • There are advantages, and disadvantages to remapping the factory.   The factory runs billions of different maps, to account for sooooo many variables, especially when you bring in things like constantly variable cams etc. By remapping all those maps appropriately, you can get the car to drive so damn nicely, and very much so like it does from the factory. This means it can utilise a LOT of weird things in the maps, to alter how it drives in situations like cruise on a freeway, and how that will get your fuel economy right down.   I haven't seen an aftermarket ECU that truly has THAT MANY adjustable parameters. EG, the VAG ECUs are somewhere around 2,000 different tables for it to work out what to do at any one point in time. So for a vehicle being daily driven etc, I see this as a great advantage, but it does mean spending a bit more time, and with a tuner who really knows that ECU.   On the flip side, an aftermarket ECU, in something like a weekender, or a proper race car, torque based tuning IMO doesn't make that much sense. In those scenarios you're not out there hunting down stuff like "the best way to minimise fuel usage at minor power so that we can go from 8L/100km to 7.3L/100km. You're more worried about it being ready to make as much freaking power as possible when you step back on the loud pedal as you come out of turn 2, not waiting the extra 100ms for all the cams to adjust etc. So in this scenario, realistically you tune the motor to make power, based on the load. People will then play with things like throttle response, and drive by wire mapping to get it more "driveable".   Funnily enough, I was watching something Finnegans Garage, and he has a huge blown Hemi in a 9 second 1955 Chev that is road registered. To make it more driveable on the road recently, they started testing blocking up the intake with kids footballs, to effectively reduce air flow when they're on the road, and make the throttle less touchy and more driveable. Plus some other weird shit the yankee aftermarket ECUs do. Made me think of Kinks R34...
×
×
  • Create New...