S mode not working at all
 

Anyone else have this issue and got it fixed?

You have a tune? I've seen others mention their tune breaking s mode.

No tune that I can tell... bought used but I wouldn't know unless I had an uprev person check.

Turns out it is tuned on uprev. Having a local tuner check it tonight. Thanks guys, I'll come back if it worked.

Any warning lights, etc? Does your cruise control work?

Had S-mode quit working on mine last summer and it was one of the switches on the clutch pedal. I had just replaced the pedal and CMC and just didn't have the switch adjusted quite right. Readjusted the switch and after a quick drive around the block everything was back to working as expected.

Nope no warning lights or cels. I'll get it checked out! I'm happy I found out its tuned cuz that saves me money.

The other problem I've heard of is when the bezel around the shifter is removed and when reinstalled slightly pushes down on the s-mode button. Never happened to me but I've seen in mentioned around here in the past.

Hate to have to ask but... did you check under the shift boot to see if the S button is plugged in?

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considering when I click and hold it in, it gives me the s mode alert... So I assume so but I dont like to assume. I appreciate the info ill actually go check that in a few

UPDATE

I did check thoroughly under to make sure it's plugged in, Kind of just gave it a nudge in the correct direction. Turned car on pressed it on S was finally on the dash. I can only shut off by holding it in but that worked throughout two cycle of starting the vehicle. Gonna drive her now and hopefully it will stay on. TY for any and all info/tips

Yeah went for a drive and same thing it turned off and couldn't turn back on. Probably a connection issue hopefully gonna have it checked tomorrow thx guys

Rule #1 boys and girls: is it plugged in?

You could try a blast of QC electronics cleaner into the connectors.

Also, to turn off S-mode you do need to hold the button down for a few. That is normal.

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Happens to the best of us. I once took my car in bc the window wouldnt go up; turns out someone's knee had hit the window lock button during some extracurricular activities in the driver's seat the night before...

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was this issue ever resolved? i had the same problem after a really hard shift mess-up and then s mode would not turn on. After un doing the batteries for 20 min and resetting the ecu the problem went away. But it comes back randomly. I usually don't drive with s mode on so its only when i hit the button that i notice its messed up again.

In addition to shifter plug, it happened to me once, after I installed RJM clutch pedal, took it to my shop, there was a sensor on clutch pedal that wasn't connected properly as he reported.

was yours doing it intermediately or completely not working. Mine will work again after an ECU reset but will randomly not turn on again days later.

And this will be after days of just daily to and from work driving. going to search today for any loose connections too.

how many wires go to this switch? can you just jump them ? i do not have this feature so this might/or not be a idea .

i'm not trying to bypass the feature, i'm trying to make it work without doing an ecu reset every day, or time i stop driving for 30 min.

So far an ECU reset "fixes" the problem for it just to come back days or weeks later. Since i don't drive with s-mode all the time i only see it when there is an issue and i want to use it.

Could you be more specific about the "really hard shift mess-up?" Confess your sins to the forum :worship:

LOL. Ok so I was finished with my warm up lap at the last SCCA Track Night in America. Coming down the back strait I downshifted from 4th to 3rd at about 80 or so, still warming up a bit, and did not in any way rev match on my own......:icon14::icon14::icon14:

I assumed the s-mode was on and it was not.

:worship:Please wash my sins and my issues clean oh 370z.com

Sounds like a mild money shift. Is there an internal device that controls the Syncro Rev Match that has perhaps broke in the process?

No idea, from what i have gathered there are 3 different sensors that can either come loose or be broken. So far i have checked both under the clutch area with 0 success. headed to the dealership tomorrow to see if they can sort it out.

Your posts are describing a top clutch switch that needs adjustment. When your top clutch switch is out of adjustment, the control systems are unable to determine when you have your foot on the clutch or not.

Your current switch adjustment is not allowing the switch to fully close when your foot is off the pedal. This means the control system believes your foot is constantly on the clutch pedal as you are driving. S-Mode will work for a while and then it will eventually fault because it never sees you letting off the pedal.

So that is why it starts working again after you reset, because you start the cycle over. If you go under your dash and adjust the top clutch switch so that it fully closes when you let go of the pedal, your S-Mode will return to normal and your cruise control will start working again. It is a very simple adjustment. Loosen the lock nut, thread the switch closer to the pedal, then tighten the lock nut, done.

Appreciate the advice but I have no idea how to get myself down there to adjust that bit! I was able to stick my head in the foot well by playing origami but i don't have any way to get my hands down there to adjust anything.

I'm headed to the stealership tomorrow and am going to hope for the best.

I still really don't see how it could be that switch though. It was never adjusted, and i did put my finger between it and the rubber stopper. TONS of pressure, so much it was painful to my thumb. and i had to use my head to move the clutch if that gives you an idea of how little room i have.

Hopefully SW Nissan in TX can figure it out.

Perhaps its not an adjustment issue, and the switch simply failed. I am just used to assuming its an adjustment issue, as it should be a pretty common issue for this car... especially with how much people have to mess with the clutch hydraulics and pedal in this car.

If you are unable to physically position yourself down there, I understand that it makes more sense to just let Nissan work it out. I am no fan of getting under there, and I can respect that for many people it may not even be an option.

hopefully that is it which should mean an easy and hopefully not super pricey fix. It may very well be that, but it worked with 0 issues when i needed it to after the clutch and master cylnder job.

It was only after i messed up my shift that i started getting issues. I understand what you mean about the ECU starting fresh and then relearning that the sensor is messed up, i just can't fit down there to adjust it. I will make a point to ask them about this too.

UPDATE!!!

Its "fixed" but not sure if it will last. While i couldn't get my big *** under the steering wheel i as able to really put pressure (upwards) on the clutch pedal. The warning went away and now the s mode works. I just need to find a smaller guy to get under there for an actual adjustment.

Cruise control still doesn't work though, no idea why but its really not an issue.

Not to sound like a broken record, but just drive the car around the block and see if the cruise control system works. Its the easiest way to test if the problem is the top clutch switch. If the control system does not recognize that your foot is off the clutch due to a problem with the switch, it will not allow cruise control to fully activate. This is because cruise is intended to automatically turn off if it notices you press on the clutch at all similar to how it behaves if it sees you press the brake pedal.

Maybe you knocked the shifter position sensor out of adjustment.

Yeah, it's super tight getting down there to do any work. I actually pulled my seat out when I did my RJM pedal and HD CMC. It still wasn't much room but I was at least able to lay on my back with my feet up and over the bar behind the seats.

I actually got it to work while driving, so I attempted the cruise control at the same time with no success.

As to how it got knocked out of place, i can guess it was the bad shift. Didn't think it was that jerky to move the sensor but i'v been wrong plenty of times before.

Since i didn't really adjust it and just applied a liberal amount of pressure i'm still going to try and actually move it. Hopefully the cruise control will work but if not i'm not sweating it. I just really wanted / needed to get the s-mode back.

That would be the only way i can get under there. I have a buddy who's much smaller and he can be bribed with beer. Its working now but when / if it arises again i'll have him take a shot at it first.

HAHA that is exactly what I did for the RJM and my oil pressure gauge / other assorted wiring. And I am NFL middle linebacker-sized (minus all those sweet muscles). It's actually a little cozy, if you're not claustrophobic. https://uploads.tapatalk-cdn.com/201...a024c5bcec.jpg

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Your cruise will start working once the adjustment is dialed in. When you pulled the clutch pedal up you got the switch to momentarily depress which would fix the S-Mode for a while, similar to resetting the ECU you did before. The cruise wont work until the adjustment is completed because the switch needs to be continually depressed for cruise to work.

This is from changing your clutch master cylinder. The hard shift would not have caused this.

Having the same problem right now with my 2011 Nismo showing a s-mode warning light. What do you mean by adjusted the clutch pedal sensor, hoping this is the issue.