Nissan 370Z Forum - How to completely disable the VDC

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- - How to completely disable the VDC (http://www.the370z.com/engine-drivetrain/16136-how-completely-disable-vdc.html)

Thinking about this some more today. You guys will have to be careful when using your cruise when that wire is cut. Its no longer going to know to kill the cruise when you tap the brake which means if you forget or if someone else is driving your car and is used to killing the cruise with the brakes (like myself) you could be in trouble.

Just a caution I thought of today while driving a sweet rental car in West Texas. haha

I wouldn't be surprised if the cruise control just failed to work at all with the ABS controller dead. Be interesting to see what happens :)

Quote:

Originally Posted by wstar (Post 2657823)

I wouldn't be surprised if the cruise control just failed to work at all with the ABS controller dead. Be interesting to see what happens :)

Yeah your right, I wouldn't be surprised.

Quote:

Originally Posted by Mitco39 (Post 2657325)

Actually the cruise control is on a separate brake switch circuit. there are two brake position switches one for lights and vdc and one specifically for cruise control.

Quote:

Originally Posted by Mitco39 (Post 2654456)

Bob, I know what you mean about the RL falling on its face, there is a very fine line between the perfect amount of slip and not enough causing the car to fall on itself and kill your 60'.

Also I did some digging through the FSM for you and found out (in theory) how to bypass the brake switch while still keeping your lights.

http://img.photobucket.com/albums/v2...ps8a8cd833.jpg

Its a bit hard to see but you essentially want to cut the wire going from your fuse block to your ABS controller. This will kill and brake signal going to your CanBus but yet still let your brake lights function as they should.

http://img.photobucket.com/albums/v2...ps715cef21.jpg

Again hard to see but the ABS connector is E41 and its pin 30 with a SB color of wire. Knowing first hand how hard it is to get to the abs connector I would probably look at the fuse block end of things (pin 1F of E103).

Hope this helps! I might do the same thing come summer.

Mitch

Hey Mitch ... !!!
Car is in the shop right now and we are at the point of decision as to how to best nuetralize the VDC and ABLS when I go to the track...and then return the car to 'Normal' for driving on the street.

There have been some changes (or adaptations) along the way as the build has progressed...

The research and info that you have provided has been invaluable.
The shop has make the final determination as to the ease, effectiveness (and cost) of the modifications now.

I downloaded the FSM ... yikes !!! there are a ton of individual PDF files ...
Where can I find these particular diagrams ???

Just wanted to thank you again for your eagerness and ability to help me with this... AWESOME

Will keep you posted as to the results !!!

Bob

Quote:

Originally Posted by Mitco39 (Post 2654605)

Bob,

The exact pages in the FSM is EXL-91, BRC-76, BRC-77.

I would bet that the ABS would be disabled as this is what occurs when pulling the fuse for the whole circuit.

Hey Again Mitch !!!

Apologize profusely and muchly ... have so much going on in my head with the build ... couldn't find this info and that you already answered my question ...

Keep in touch with me ... THANKS

Bob

can somebody help me find the actual (pin 1F of E103) located at the fusebox so i can make switch to turn on/off the abs.

Sorry to drag this one from the dead, but I had a concern here and wanted to ask you guys about it. I have a switch to disable yaw and I like it that way unless it's raining. I know it's basically an accelerometer, my concern is whether or not doing this might disable airbags?? If so I will rethink. I am thinking not because the airbag lights are not lit, but just wanted to make sure...

Thanks in advance

No, the yaw sensor shouldn't affect the airbag system at all AFAIK. The yaw sensor's hooked to traction control and ABS, but not to the safety system. There are impact sensors around the car that do that.

yeah the airbag system is entirely separate from any other system on the car, the NHTSA demands that it be separate so that a failure in one system cannot affect it's operation.

here you go
line lock at its best
7 AT.

Z

Thanks guys, thought so just wanted to be sure. :)