SyncroRev Match not working

gomer_110 · 10-19-2018, 07:25 PM

So heading home from an autox event this last weekend syncrorev match stopped working. Looking for any suggestions on where to start looking.

Recent history:

Recent work includes clutch, flywheel, ZSpeed CMAK, and RJM Tilton CMC and pedal assembly. Did the CMC and pedal assembly install myself and had a trusted, well respected shop install the clutch, flywheel, and CMAK. Picked the car up from the shop a couple weeks ago and drove it home which was about 100 miles. The whole way home s-mode worked flawlessly. Drove to the autox event last weekend and s-mode continued to work fine. S-mode worked throughout the event. Leaving the site, s-mode unexpected stopped working and every attempt to turn it back on resulted in a warning being displayed on the info screen on the dash. Even now the gear indicator on the dash is working fine. The cruise control isn't working either but I can't remember anymore if that is something new or hasn't worked since I disconnected the yaw sensor last year.

It's been a busy week at work so I haven't had a chance to do any troubleshooting yet. If anyone has any suggestions on where to start it would be appreciated.

Trips · 10-19-2018, 07:29 PM

Try to reset the ecu

Jinxx · 10-20-2018, 03:20 AM

I had the same issue after the clutch install ... in my case the can bus cable hit the exhaust and melted .... I would check your can bus cable make sure it is intact .. and connected firmly ... being that you said it worked for a little while I would think it hit exhaust and melted through

AlWakRa · 10-21-2018, 05:09 AM

i had the same issue when I installed my rjm clutch pedal, mostly S-mode and cruise control didn't work but on occasions it was working, there was a plug that wasn't properly installed to the pedal.

gomer_110 · 10-21-2018, 05:13 PM

So this doesn't turn into one of the other million threads on here where someone has a problem but never comes back to say what the solution was, I thought I'd post an update with what the problem and solution was.

Started by checking the switches on the pedal assembly and turns out the upper switch (the one that reads when the clutch pedal is out) wasn't making. It initially looked like it was making but apparently it was just slightly off from actually actuating the switch. Made a minor adjustment and the switch started making.

When starting the car to verify this was the issue, S-mode still would not come on. It wasn't until I released the clutch and actuated the switch that had been out of adjustment that S-mode started working again. Drove the car around the block and everything seems to be back to normal now.

Thanks for the input everyone.

TTZ34 · 10-24-2018, 11:11 AM

I also had the same problem the clutch pressure switch was not hooked up properly and what happens is the car thinks that the clutch pedal has not been pressed in a really long time so it throws an S Modera that's what happened to me. Does your cruise control work?

gomer_110 · 10-24-2018, 07:26 PM

Honestly don't know. It's an autox car that occasionally gets driven around town. Once I verified syncrorev match worked by taking the car around the block, I put the car back in the garage where it will stay until next spring now.

AlWakRa · 10-25-2018, 04:12 AM

Quote:

Originally Posted by TTZ34

I also had the same problem the clutch pressure switch was not hooked up properly and what happens is the car thinks that the clutch pedal has not been pressed in a really long time so it throws an S Modera that's what happened to me. Does your cruise control work?

In my case, Cruise Control didn't work when I got the error message about S Mode.

Jmatchley86 · 05-27-2019, 07:56 AM

Hate to resurrect an older post but i'm having this issue currently too. I checked the connection for the clutch pedal switch and its connected firmly. My cruise control is also not working and I did a CSC / master cylinder replacement a few months ago.

My issue is strange, if i do an ECU reset (un hooking the power for 20 min) the issue goes away but comes back. How can this temporarily fix the issue?

I do not usually drive with s-mode on so I don't know when exactly it stops, i just find out after the fact by trying to use it.

I also checked the connection at the actual button to be on the safe side but since its giving the warning light, but i assumed that wasn't it. I have read there is another sensor somewhere else I should look at but not sure where.

Hope someone has some advise here before i surrender to the stealership.

gomer_110 · 05-27-2019, 09:51 AM

One of the clutch switches is probably just out of adjustment slightly. Mine was only slightly out of adjustment and that was all it took.

Also, at least from what I saw, the ECU has to see the issue awhile before it faults the SRM system. Additionally, even after the switch is adjusted correctly, you'll need to drive the car around the block for the ECU to be happy the switch is working again.

Jmatchley86 · 05-27-2019, 10:20 AM

Just to make sure, you are referring to the black push switch that is hit by the clutch pedal, correct?

I need to make sure that is plugged in, drive around the block, and then give the s-mode a shot? Should i also reset the ecu again for good measure or am i thinking of the wrong switch

gomer_110 · 05-27-2019, 11:45 AM

iirc, it's the switch that senses the clutch at zero travel that caused my issue. For me it wasn't a matter of the wiring being loose, it was the switch was out of adjustment. It takes very little change in the switch's position to make it stop working. If the switch is being actuated correctly, you should hear a faint click right as the pedal reaches the fully released position.

Assuming this is your problem, you shouldn't need to reset the ECU before driving around the block.

Jmatchley86 · 05-27-2019, 12:15 PM

Just looked at that switch and its being pressed when the clutch is all the way released. I even put my finger between it and the rubber stopper thing to make sure there was decent pressure.

I'm at a loss, is there any other sensor that could be knocked out? And if they are plugged in is there some sort of reset (not ecu i have established that does not work) for the sensor?

Thanks for the help too!

SouthArk370Z · 05-27-2019, 05:01 PM

The FSM will have functional description, wiring diagram, trouble-shooting procedure, switch setting procedure, etc.

gomer_110 · 05-27-2019, 06:29 PM

Quote:

Originally Posted by Jmatchley86

Just looked at that switch and its being pressed when the clutch is all the way released. I even put my finger between it and the rubber stopper thing to make sure there was decent pressure.

I'm at a loss, is there any other sensor that could be knocked out? And if they are plugged in is there some sort of reset (not ecu i have established that does not work) for the sensor?

Thanks for the help too!

When I had my problem, the switch visibly looked to be positioned correctly. It was only the faint little click of the switch making and breaking (or lack there of) that let me know there was an issue. The body of the switch is threaded with a nut on each side setting its position. Just a fraction of a turn can be enough to throw it out of position.

10-19-2018, 07:25 PM	#1 (permalink)
gomer_110 A True Z Fanatic Join Date: Aug 2011 Location: Perrysburg, OH Posts: 17,992 Drives: '11 Nismo #528 GM Rep Power: 36941	SyncroRev Match not working So heading home from an autox event this last weekend syncrorev match stopped working. Looking for any suggestions on where to start looking. Recent history: Recent work includes clutch, flywheel, ZSpeed CMAK, and RJM Tilton CMC and pedal assembly. Did the CMC and pedal assembly install myself and had a trusted, well respected shop install the clutch, flywheel, and CMAK. Picked the car up from the shop a couple weeks ago and drove it home which was about 100 miles. The whole way home s-mode worked flawlessly. Drove to the autox event last weekend and s-mode continued to work fine. S-mode worked throughout the event. Leaving the site, s-mode unexpected stopped working and every attempt to turn it back on resulted in a warning being displayed on the info screen on the dash. Even now the gear indicator on the dash is working fine. The cruise control isn't working either but I can't remember anymore if that is something new or hasn't worked since I disconnected the yaw sensor last year. It's been a busy week at work so I haven't had a chance to do any troubleshooting yet. If anyone has any suggestions on where to start it would be appreciated. __________________ '11 370Z Nismo #528 Fast Intentions \| Stillen \| Motordyne \| Uprev \| CSF \| Zspeed \| Z1 Motorsports \| AST \| Swift \| SPC \| SPL \| Whiteline \| Hotchkis \| Bride \| Schroth \| Robispec \| Cusco \| Nismo \| Volk \| Forgestar \| Hoosier \| RJM '17 Titan Bone Stock

10-19-2018, 07:29 PM	#2 (permalink)
Trips Administrator Join Date: May 2009 Location: Disneyland, Ca Posts: 8,730 Drives: 🔰 Rep Power: 10	Try to reset the ecu __________________

10-21-2018, 05:09 AM	#4 (permalink)
AlWakRa Track Member Join Date: Oct 2010 Location: Qatar Posts: 600 Drives: 10 370Z PW 6MT Rep Power: 13450	i had the same issue when I installed my rjm clutch pedal, mostly S-mode and cruise control didn't work but on occasions it was working, there was a plug that wasn't properly installed to the pedal. __________________ 2010 370Z Touring Sport Pearl White 6MT Powered by: Fast Intentions - Motordyne - Stillen - OS Giken - CJ Motorsports - Mishimoto - MCA Suspension - SPL - SuperPRO - RJM - Z1 Motorsport - Zspeed - Volk My Humble Journals

10-21-2018, 05:13 PM	#5 (permalink)
gomer_110 A True Z Fanatic Join Date: Aug 2011 Location: Perrysburg, OH Posts: 17,992 Drives: '11 Nismo #528 GM Rep Power: 36941	So this doesn't turn into one of the other million threads on here where someone has a problem but never comes back to say what the solution was, I thought I'd post an update with what the problem and solution was. Started by checking the switches on the pedal assembly and turns out the upper switch (the one that reads when the clutch pedal is out) wasn't making. It initially looked like it was making but apparently it was just slightly off from actually actuating the switch. Made a minor adjustment and the switch started making. When starting the car to verify this was the issue, S-mode still would not come on. It wasn't until I released the clutch and actuated the switch that had been out of adjustment that S-mode started working again. Drove the car around the block and everything seems to be back to normal now. Thanks for the input everyone. AlWakRa, 2011 Nismo#91, JARblue and 8 others like this. __________________ '11 370Z Nismo #528 Fast Intentions \| Stillen \| Motordyne \| Uprev \| CSF \| Zspeed \| Z1 Motorsports \| AST \| Swift \| SPC \| SPL \| Whiteline \| Hotchkis \| Bride \| Schroth \| Robispec \| Cusco \| Nismo \| Volk \| Forgestar \| Hoosier \| RJM '17 Titan Bone Stock

10-24-2018, 07:26 PM	#7 (permalink)
gomer_110 A True Z Fanatic Join Date: Aug 2011 Location: Perrysburg, OH Posts: 17,992 Drives: '11 Nismo #528 GM Rep Power: 36941	Honestly don't know. It's an autox car that occasionally gets driven around town. Once I verified syncrorev match worked by taking the car around the block, I put the car back in the garage where it will stay until next spring now. __________________ '11 370Z Nismo #528 Fast Intentions \| Stillen \| Motordyne \| Uprev \| CSF \| Zspeed \| Z1 Motorsports \| AST \| Swift \| SPC \| SPL \| Whiteline \| Hotchkis \| Bride \| Schroth \| Robispec \| Cusco \| Nismo \| Volk \| Forgestar \| Hoosier \| RJM '17 Titan Bone Stock

10-20-2018, 03:20 AM	#3 (permalink)
Jinxx Track Member Join Date: Dec 2015 Location: South Carolina Posts: 699 Drives: 2017 nismo 370z Rep Power: 3375	I had the same issue after the clutch install ... in my case the can bus cable hit the exhaust and melted .... I would check your can bus cable make sure it is intact .. and connected firmly ... being that you said it worked for a little while I would think it hit exhaust and melted through

10-24-2018, 11:11 AM	#6 (permalink)
TTZ34 Base Member Join Date: Jan 2015 Location: Aiken SC Posts: 27 Drives: 2011 370z Sport Rep Power: 10	I also had the same problem the clutch pressure switch was not hooked up properly and what happens is the car thinks that the clutch pedal has not been pressed in a really long time so it throws an S Modera that's what happened to me. Does your cruise control work?

05-27-2019, 07:56 AM	#9 (permalink)
Jmatchley86 Base Member Join Date: Jan 2017 Location: Fort Worth Posts: 159 Drives: 2011 370z 6MT Rep Power: 8	Hate to resurrect an older post but i'm having this issue currently too. I checked the connection for the clutch pedal switch and its connected firmly. My cruise control is also not working and I did a CSC / master cylinder replacement a few months ago. My issue is strange, if i do an ECU reset (un hooking the power for 20 min) the issue goes away but comes back. How can this temporarily fix the issue? I do not usually drive with s-mode on so I don't know when exactly it stops, i just find out after the fact by trying to use it. I also checked the connection at the actual button to be on the safe side but since its giving the warning light, but i assumed that wasn't it. I have read there is another sensor somewhere else I should look at but not sure where. Hope someone has some advise here before i surrender to the stealership. Last edited by Jmatchley86; 05-27-2019 at 07:58 AM.

05-27-2019, 09:51 AM	#10 (permalink)
gomer_110 A True Z Fanatic Join Date: Aug 2011 Location: Perrysburg, OH Posts: 17,992 Drives: '11 Nismo #528 GM Rep Power: 36941	One of the clutch switches is probably just out of adjustment slightly. Mine was only slightly out of adjustment and that was all it took. Also, at least from what I saw, the ECU has to see the issue awhile before it faults the SRM system. Additionally, even after the switch is adjusted correctly, you'll need to drive the car around the block for the ECU to be happy the switch is working again. __________________ '11 370Z Nismo #528 Fast Intentions \| Stillen \| Motordyne \| Uprev \| CSF \| Zspeed \| Z1 Motorsports \| AST \| Swift \| SPC \| SPL \| Whiteline \| Hotchkis \| Bride \| Schroth \| Robispec \| Cusco \| Nismo \| Volk \| Forgestar \| Hoosier \| RJM '17 Titan Bone Stock

05-27-2019, 10:20 AM	#11 (permalink)
Jmatchley86 Base Member Join Date: Jan 2017 Location: Fort Worth Posts: 159 Drives: 2011 370z 6MT Rep Power: 8	Just to make sure, you are referring to the black push switch that is hit by the clutch pedal, correct? I need to make sure that is plugged in, drive around the block, and then give the s-mode a shot? Should i also reset the ecu again for good measure or am i thinking of the wrong switch

05-27-2019, 11:45 AM	#12 (permalink)
gomer_110 A True Z Fanatic Join Date: Aug 2011 Location: Perrysburg, OH Posts: 17,992 Drives: '11 Nismo #528 GM Rep Power: 36941	iirc, it's the switch that senses the clutch at zero travel that caused my issue. For me it wasn't a matter of the wiring being loose, it was the switch was out of adjustment. It takes very little change in the switch's position to make it stop working. If the switch is being actuated correctly, you should hear a faint click right as the pedal reaches the fully released position. Assuming this is your problem, you shouldn't need to reset the ECU before driving around the block. __________________ '11 370Z Nismo #528 Fast Intentions \| Stillen \| Motordyne \| Uprev \| CSF \| Zspeed \| Z1 Motorsports \| AST \| Swift \| SPC \| SPL \| Whiteline \| Hotchkis \| Bride \| Schroth \| Robispec \| Cusco \| Nismo \| Volk \| Forgestar \| Hoosier \| RJM '17 Titan Bone Stock

05-27-2019, 12:15 PM	#13 (permalink)
Jmatchley86 Base Member Join Date: Jan 2017 Location: Fort Worth Posts: 159 Drives: 2011 370z 6MT Rep Power: 8	Just looked at that switch and its being pressed when the clutch is all the way released. I even put my finger between it and the rubber stopper thing to make sure there was decent pressure. I'm at a loss, is there any other sensor that could be knocked out? And if they are plugged in is there some sort of reset (not ecu i have established that does not work) for the sensor? Thanks for the help too!

05-27-2019, 05:01 PM	#14 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	The FSM will have functional description, wiring diagram, trouble-shooting procedure, switch setting procedure, etc. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

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