duty solenoid C wire location?

spinn360 · #1 03-11-2006, 02:38 PM

Does anyone know which wire goes from the TCU to the duty solenoid C in the tranny. Either the wire coming out of the tcu or the wire connecting to the trannsmission.

Manarius · #2 03-11-2006, 03:57 PM

I don't know exactly where the TCU sends to the Solenoid wire, but I know the solenoid itself is buried in the tranny. So, the wire going in is going to be buried.

spinn360 · #3 03-11-2006, 07:46 PM

I know the wire in the tranny is going to be in the tranny. but the wire from the tcu or the wire at the connection outside of the tranny is not. It should say in the FSM somewhere. I dont have an fsm for the svx although I have one for an 88 xt6 and it has a 4eat tranny that is very similar to the svx's 4eat. I just dont know if the wiring is the same as in my fsm. So if someone could tell me what it says in the fsm or if someone knows off hand that would be great.

spinn360 · #4 03-11-2006, 08:21 PM

So if anyone has an fsm please could you look inside and let me know it should be near the end of the auto tranny section. thanks

spinn360 · #5 03-12-2006, 07:46 AM

Does anyone know?

spinn360 · #6 03-12-2006, 09:09 AM

Found it never mind

19svx94 · #7 03-12-2006, 10:31 PM

i was thinking about doing the same mod for those weekends i want to go out in the dunes, could you tell me where you found the wire.

spinn360 · #8 03-13-2006, 10:38 AM

I did a search and UberRoo posted where it was a while back his post said on the TCU there are three plugs going into it. the top plug has a green wire with a red stripe. that is the one that is supposed to control the duty colenoid c. I am not to good at making links to others posts but you could do a search. There is a pic also in UberRoos post.

Found it its under need step by step instructions...
This is just copied from UberRoos post
Getting the 50/50 torque split, (which is not technically what you're doing,) is very easy. Duty solenoid "C" is fed a pulsing signal to keep pressure from engaging the clutch. Typically, the signal runs nearly continuously. When the TCU thinks you need more traction, it reduces the number of pulses. If you want to manually reduce the number of pulses, all you need to do is cut the wire that controls the solenoid, which effectively reduces the number to zero.

Under the dash is the TCU. If you look at the picture, there are three plugs going into the TCU. The upper plug (highlighted in red) is the one that goes to the transmission. The green wire with a red stripe controls solenoid C. All you need to do is cut that wire and splice in a switch, which will normally be left ON, but turned OFF to engage the rear wheels manually.

As for the power mode deal, use the stick between the seats. It works pretty well. Somebody on the forums was saying that they just leave it in first and it shifts just past redline. Sounds a little aggressive to me, but that's what the stick is for.

Oh yeah, do this at your own risk! I'm sure I got this all right, but keep the responsibility off my shoulders.
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Quote:

Originally Posted by UberRoo

Getting the 50/50 torque split, (which is not technically what you're doing,) is very easy. Duty solenoid "C" is fed a pulsing signal to keep pressure from engaging the clutch. Typically, the signal runs nearly continuously. When the TCU thinks you need more traction, it reduces the number of pulses. If you want to manually reduce the number of pulses, all you need to do is cut the wire that controls the solenoid, which effectively reduces the number to zero.

Under the dash is the TCU. If you look at the picture, there are three plugs going into the TCU. The upper plug (highlighted in red) is the one that goes to the transmission. The green wire with a red stripe controls solenoid C. All you need to do is cut that wire and splice in a switch, which will normally be left ON, but turned OFF to engage the rear wheels manually.

As for the power mode deal, use the stick between the seats. It works pretty well. Somebody on the forums was saying that they just leave it in first and it shifts just past redline. Sounds a little aggressive to me, but that's what the stick is for.

Oh yeah, do this at your own risk! I'm sure I got this all right, but keep the responsibility off my shoulders.