Noob question what's the SLIP mean?

[unknown007]

It turns on sometimes when I go to reverse for like 1 second. The other day it was on and stood on when i was on a red light.Dunno what it is help would be handy thanks.

[Infinitiguy19]

SLIP means that your vehicle is loosing traction and traction control is trying to regain it by putting the brakes on which ever rear wheel is spinning the most sometimes both and it also shuts the throttle down (that black, on older 91-92 its Aluminum housing is the throttle motor that shuts the secondary throttle).

The SLIP light may also illuminate when putting the car in gear and I assume this just checks the TCS systems and to make sure they are fine if not both TCS OFF and SLIP will light up some times ABS too.

At the red light did you try to "light em up"

[marlin29311]

Right - the SLIP has to deal with the fact that the car's wheels are spinning and not grabbing the pavement. However, if your light is at a constant "on," this could mean other things, such as not having enough brake fluid, having a TCS problem, or something else. If you can, have it checked out - the light should never be at a steady "on."

[unknown007]

Well if the light comes up again for along time i'll be sure to check it out. not trying to go to infiniti and get charged hundreds for nothing to be replaced. But i was just curious because its the first time ever and maybe it was because i was letting og the brake a little bit. But i dunno thanks.

And no i wasn't trying to light them up it was raining.

[Infinitiguy19]

So it never did that before and that's the first time that it actually said SLIP when putting it in gear right.

Then it might be the TCS relays (under the plastic battery holder Blue colored.)

Best to bring it to a place that has a dyno or at least a place where you can get the rear wheels off the ground and up to 30 MPH to dignose it.

[MinisterofDOOM]

If there's a major problem with the system, you'll most likely see all 3 lights illuminate solid and permanent: TCS OFF, SLIP, and ABS (which would indicate that both systems are disabled due to some problem). It's totally normal for SLIP to illuminate periodically: it'll illuminate any time it sees enough difference in rotation between tires to activate TCS. I'm not sure what it means when it comes on shifting into gear, but if it goes back out and you're not seeing ABS and TCS OFF along with it, I wouldn't be concerned.

It can't hurt to check your TCS fluid level, though. Low brake fluid is indicated separately, by the same light that doubles as the park brake indicator.

[maxnix]

Surely he already did that when he flushed his hydraulics right after he got the car?

[unknown007]

Surely he already did that when he flushed his hydraulics right after he got the car?

Nope lol I should.

I think i figured out why it happened.When i was at a red light again at the same light it did it again. There was a puddle so i think it was that.

But it always does it went shifting into reverse or drive so i wasn't concrened about that just at the light.lol

[Haitian_King]

If you don't turn TCS off before shifting into reverse, the SLIP light may flash briefly. It happens to my Q if I forget to hit the switch.

[tangywaffle]

what about if the TCS OFF, SLIP, and ABS lights are all illuminated constantly. Except right at start up, but as soon as the car is in gear they all come back on. i know the ABS and TCS are both not working... obviously ;-) is it a fuse, a sensor, or something more in depth?

[maxnix]

Your alternator (and probabably your battery also) is dead.

[Infinitiguy19]

Your going to have to read the FSM: http://www.nicoclub.com/FSM/Q4...r.pdf Because I have no idea if you can or not can not diagnose it on a dyno going 30 MPH and looking in the trunk for how many times the TCM error light blinks.

[tangywaffle]

Your alternator (and probabably your battery also) is dead.

definitely not. this has been a problem for a couple months now. i know it doesn't take that long for a battery or alternator to die.

another note... it used to be periodic, becoming more frequent until it finally was constant.

[maxnix]

Have you checked your TCS relay?

Tire pressures? Same tires on all four locations?

Your alternator may have been dying for those two months, taking the battery with it.
Modified by maxnix at 12:59 PM 11/6/2008

[tangywaffle]

Have you checked your TCS relay?

Tire pressures? Same tires on all four locations?

Your alternator may have been dying for those tow months, taking the battery with it.

how do i test the relay? tires are not the issue. neither is the battery or alternator.

[tangywaffle]

Your going to have to read the FSM: http://www.nicoclub.com/FSM/Q4...r.pdf Because I have no idea if you can or not can not diagnose it on a dyno going 30 MPH and looking in the trunk for how many times the TCM error light blinks.

Do I need dyno? Can i not just use jack stands? Or even a lift? It costs just as much to put my car on a dyno as it does to take it to a dealership for diagnosis. The whole idea is to learn to do it myself

[maxnix]

Sure you haven't fubared an ABS sensor?

Have you read the FSM?

[tangywaffle]

i'll just need to spend some time checking connections... continuity and whatnot. i was hoping someone might have a shortcut. possibly a similar problem, or a popular diagnosis to save me some time.

[Sentientbydesign]

what about if the TCS OFF, SLIP, and ABS lights are all illuminated constantly. Except right at start up, but as soon as the car is in gear they all come back on. i know the ABS and TCS are both not working... obviously ;-) is it a fuse, a sensor, or something more in depth?

On the G35 and Altima Coupe this occurs when there is low brake fluid. This usually means your brakes (and possibly rotors) need replacement OR you have a brake leak.

[tangywaffle]

On the G35 and Altima Coupe this occurs when there is low brake fluid. This usually means your brakes (and possibly rotors) need replacement OR you have a brake leak.

pads and rotors have plenty of life left, and the fluid is full and in good condition with no leaks. i just checked all the fuses and relays. all appear to be in working order. i'm guessing it's an ABS sensor. is there any way to read codes in the system to point towards which sensor?

on a completely irrelevant topic... i see an advert up top for Injected Performance. That's my buddy's company here in Lexington.

[Sentientbydesign]

That information is outside of my arena. I would think that one of the speed sensors is the culprit as you mentioned.

[tangywaffle]

i guess i'll get to work tonight, and post my findings. thanks for trying.

[STLQ]

tangywaffle,Did you ever solve your problem? I have the same issue with my 97Q.

[Q45tech]

Important that tires on early Q meet OEM SPECS for traction [wear index].

The software for 90-93 assumes tires are 160 and 94-96 are 200 or better.

Any tire that lasts more than 20,000 miles is suspect as their friction coefficient is too hard.

One of the reasons I skip TCS as a desirable NOW impossible to find tires to match system software.

Remember the early Q were fast wearers of tires and brake pads/ rotors if things lasted more tham 15-20k something was wrong.

Nothing beats a soft fast wearing tire MATCHED to temperature for a traction system. Surely not putting the brakes on to improve traction.