Does turning off VDC disable ABS?

ARFCOM · 08-13-2010, 10:07 AM

I had some A-hole turn left in front of me yesterday causing me to have to slam on my brakes and swerve hard to the right, luckily into a driveway, otherwise I would have chose to slam into the guy. So I avoided the collision, but while doing so it definitely sounded like my tires were locking up and skidding. I didn't notice the brake pedal pulsating like I have in other cars when the ABS kicked in. Now I'm wondering if my ABS was functioning or not.

I did have the VDC turned off, does doing so also disable the ABS?

fuct · 08-13-2010, 10:10 AM

no

spearfish25 · 08-13-2010, 10:28 AM

VDC OFF won't turn off ABS. You never would have swerved into a driveway if your ABS wasn't working. Instead, you would have skidded right into the back of the guy despite having your wheel turned full lock.

Mt Tam I am · 08-13-2010, 10:46 AM

To all the VDC off = Death, folks out there.

This poster demonstrates VDC off = Brain on, keep driving

Vegitto-kun · 08-13-2010, 10:48 AM

Quote:

Originally Posted by Mt Tam I am

To all the VDC off = Death, folks out there.

This poster demonstrates VDC off = Brain on, keep driving

ABS has nothing to do with VDC so your point is useless.

vipor · 08-13-2010, 11:23 AM

negative

Jordo! · 08-13-2010, 11:41 AM

How fast were you going? I think below a certain speed, the ABS doesn't kick in.

Also, even when it does activate, it doesn't mean the brakes can't possibly lock up -- all it does is pulse the brakes for you making it less likely to lock.

ARFCOM · 08-13-2010, 12:38 PM

Quote:

Originally Posted by Jordo!

How fast were you going? I think below a certain speed, the ABS doesn't kick in.

Also, even when it does activate, it doesn't mean the brakes can't possibly lock up -- all it does is pulse the brakes for you making it less likely to lock.

I was probably going between 30 to 45 mph.

ETA: Funny thing I noticed after I'd come to a skidding stop was all the crap that was thrown up in the air by my front wheels that got in my eyes.

ARFCOM · 08-13-2010, 12:42 PM

Quote:

Originally Posted by spearfish25

VDC OFF won't turn off ABS. You never would have swerved into a driveway if your ABS wasn't working. Instead, you would have skidded right into the back of the guy despite having your wheel turned full lock.

I wasn't behind the guy, we were going in opposite directions and he started to make a left turn across my lane in front of me, he saw me and then slammed on his brakes, stopping in my lane. I would have impacted his front right fender/wheel if I hadn't swerved. (I just don't want anyone thinking that I was behind the guy and almost rear ended him)

PapoZalsa · 08-13-2010, 02:31 PM

VDC only assist the driver in certain situations.

Old school Zs and other RWD cars didn't had VDC and people that knew how to drive RWD car did fine.

So if you don't know or never have driven a RWD car before keep the VDC on.

ARFCOM · 08-13-2010, 04:30 PM

I'm in my 40's, so I'm more than old enough to have years of experience driving rear wheel drive cars with out any kind of traction control systems.

It's no big deal to me to power slide through a turn on dry, wet or snowy pavement, I grew up doing it. It's kind of funny to think that some of the younger drivers on this site may not have that experience due to so many new cars having traction control systems on them now a days.

SkyZ · 08-13-2010, 05:04 PM

i dont think abs cuts off at low speeds. think about ice conditions at like 10 mph

DarkPath · 08-13-2010, 05:34 PM

No, the ABS didn't turn off when VDC was disabled...Perhaps - due to the radical manuever, your car was sliding sideways more than rolling forward and the computer didn't sense the need to pulse... Funny thing about VDC it doesn't due a thing for a car that is out of control because of the law of physics... Anymore than 4 wheel drive does for helping a car stop on an icy road... VDC assists when the engine is revving, but that there is a difference in the rate of spin between the two rear tires.. VDC Logic slow the motor down till the rate between the two tires are within parameters. VDC and ABS is totally unrelated.. One is "Go logic" the other is stop logic... However, There is a relay that monitors wheel spin when tranny is engaged, high RPM is present, but the brake is fully engaged... Meaning you cannot Brake Torque a Z... If you pull the relay - the tail lights don't work and the ABS is disengaged - defeating all Brake Logic.

Hmmm Sounds like Nissan tied everything together for safety. Who'd of thunk it?

VCuomo · 08-13-2010, 08:01 PM

Quote:

Originally Posted by Vegitto-kun

ABS has nothing to do with VDC so your point is useless.

No, I don't think you understand his point, so your point is useless.

He was trying to say "Gee, look - someone who avoided an accident with VDC off."

PapoZalsa · 08-13-2010, 08:07 PM

Quote:

Originally Posted by ARFCOM

I'm in my 40's, so I'm more than old enough to have years of experience driving rear wheel drive cars with out any kind of traction control systems.

It's no big deal to me to power slide through a turn on dry, wet or snowy pavement, I grew up doing it. It's kind of funny to think that some of the younger drivers on this site may not have that experience due to so many new cars having traction control systems on them now a days.

The comment I made was not towards you, it was a general comment.

08-13-2010, 10:07 AM	#1 (permalink)
ARFCOM Base Member Join Date: Jul 2010 Location: Missouri Posts: 75 Drives: 2010 370Z Red 6 spd Rep Power: 16	Does turning off VDC disable ABS? I had some A-hole turn left in front of me yesterday causing me to have to slam on my brakes and swerve hard to the right, luckily into a driveway, otherwise I would have chose to slam into the guy. So I avoided the collision, but while doing so it definitely sounded like my tires were locking up and skidding. I didn't notice the brake pedal pulsating like I have in other cars when the ABS kicked in. Now I'm wondering if my ABS was functioning or not. I did have the VDC turned off, does doing so also disable the ABS?

08-13-2010, 10:28 AM	#3 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1857	VDC OFF won't turn off ABS. You never would have swerved into a driveway if your ABS wasn't working. Instead, you would have skidded right into the back of the guy despite having your wheel turned full lock. __________________ 2013 Cadillac V-Wagon, RIP Z

08-13-2010, 10:46 AM	#4 (permalink)
Mt Tam I am A True Z Fanatic Join Date: Jun 2010 Location: California Posts: 10,709 Drives: 370Z T/S/N 6MT & XKE Rep Power: 3844	To all the VDC off = Death, folks out there. This poster demonstrates VDC off = Brain on, keep driving __________________ "Does the carpet match the drapes? NO!!! I don't date bald women." Nissan Motorsports 34R Oil Cooler. Stillen CBE. Hotchkis Sport Sway Bars. KW Variant 3 Coilover System. Stillen Gen3 CAI. Michelin Pilot Super Sport. Stillen Brake Ducts. Carbotech™ XP10/XP8 Pads. Z1 Front Rotors. Z1 Stainless Brake Lines. Two degrees of camber

08-13-2010, 11:23 AM	#6 (permalink)
vipor A True Z Fanatic Join Date: Aug 2009 Location: Euless, TX [ DFW ] Age: 43 Posts: 13,531 Drives: Nismo 09-0183 QAB Rep Power: 50	negative __________________ 2009 NISMO # 0193 \| QAB \| Albums! \| 05.04.10 (Dynojet) 291.94hp/248.28tq Oil Cooler (DIY) \| Custom Headlights \| GTSPEC Braces \| F.I. Long Tube Headers

08-13-2010, 11:41 AM	#7 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 419	How fast were you going? I think below a certain speed, the ABS doesn't kick in. Also, even when it does activate, it doesn't mean the brakes can't possibly lock up -- all it does is pulse the brakes for you making it less likely to lock. __________________ Enjoy it. Destroy it.

08-13-2010, 10:10 AM	#2 (permalink)
fuct A True Z Fanatic Join Date: May 2009 Location: Sugar Land Posts: 3,692 Drives: 97' Ranger :) Rep Power: 25	no

08-13-2010, 02:31 PM	#10 (permalink)
PapoZalsa A True Z Fanatic Join Date: Nov 2009 Location: Not in Sunny Florida Posts: 6,358 Drives: 16 Nismo w/Tech Pack Rep Power: 4500	VDC only assist the driver in certain situations. Old school Zs and other RWD cars didn't had VDC and people that knew how to drive RWD car did fine. So if you don't know or never have driven a RWD car before keep the VDC on. __________________ 2009 370Z MB Base w/Sport Package 6MT Modshack's Custom Air Intakes /3M Clear Bra/ Illuminated Kick Plates / F. I CBE w/12" resonators / EVO-R Front Lip / Rear Hatch Wing / Tein S-Tech Springs /Ilegal Tint in the Rep. of VA/4x20mm Z1 Spacers/ Vinyl Roof/Liquid Carbon Designs

08-13-2010, 04:30 PM	#11 (permalink)
ARFCOM Base Member Join Date: Jul 2010 Location: Missouri Posts: 75 Drives: 2010 370Z Red 6 spd Rep Power: 16	I'm in my 40's, so I'm more than old enough to have years of experience driving rear wheel drive cars with out any kind of traction control systems. It's no big deal to me to power slide through a turn on dry, wet or snowy pavement, I grew up doing it. It's kind of funny to think that some of the younger drivers on this site may not have that experience due to so many new cars having traction control systems on them now a days.

08-13-2010, 05:04 PM	#12 (permalink)
SkyZ Enthusiast Member Join Date: Jul 2009 Location: Canada Posts: 382 Drives: 09 370z PG M6 Rep Power: 17	i dont think abs cuts off at low speeds. think about ice conditions at like 10 mph

08-13-2010, 05:34 PM	#13 (permalink)
DarkPath Enthusiast Member Join Date: May 2010 Location: Hampton Roads VA Posts: 318 Drives: 40th Anniversary M6 Rep Power: 16	No, the ABS didn't turn off when VDC was disabled...Perhaps - due to the radical manuever, your car was sliding sideways more than rolling forward and the computer didn't sense the need to pulse... Funny thing about VDC it doesn't due a thing for a car that is out of control because of the law of physics... Anymore than 4 wheel drive does for helping a car stop on an icy road... VDC assists when the engine is revving, but that there is a difference in the rate of spin between the two rear tires.. VDC Logic slow the motor down till the rate between the two tires are within parameters. VDC and ABS is totally unrelated.. One is "Go logic" the other is stop logic... However, There is a relay that monitors wheel spin when tranny is engaged, high RPM is present, but the brake is fully engaged... Meaning you cannot Brake Torque a Z... If you pull the relay - the tail lights don't work and the ABS is disengaged - defeating all Brake Logic. Hmmm Sounds like Nissan tied everything together for safety. Who'd of thunk it? __________________ C&C WMBG www.carsandcoffeewilliamsburg.com [B]Looking for build badges? darkpath.ent.llc@gmail.com Last edited by DarkPath; 08-13-2010 at 05:45 PM. Reason: presumed clarity

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