Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Go Back   Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum > General > Tech Talk > S Chassis

S Chassis Technical discussion related to the S Chassis such as the S12, S13, S14, and S15.


Reply
 
Thread Tools Display Modes
Old 07-19-2019, 05:23 AM   #1
speedingmofa
Zilvia Member
 
speedingmofa's Avatar
 
Join Date: Nov 2012
Location: Rotterdam, the Netherlands
Posts: 257
Trader Rating: (15)
speedingmofa can only hope to improve
Feedback Score: 15 reviews
Bench testing S14 cluster - speedo/tach signals

Hey guys, what I want to do is to have any S14/S13 cluster tested on a test bench.

In particular the tach and speedo.
Now i want to have this tested, WITHOUT having to have all this connected in my car, or it wouldn't be called a test bench...

So how can I simulate these signals with minimal effort? I have no knowledge of arduino etc to build anything of the sort...

I do have a borrowed bitscope micro which can simulate a square 50% dc signal for the speedo, but it's not having it. The cluster is powered on (12V on ignition pin, ground on ground pin, water and fuel level work!), but it seems it's not having it...
Possibly, because the bitscope can only generate a voltage of 3.3V.
As for the tach, i was hoping a similar signal would work, tried all types, sine, square, triangle, different duty cycles, none seem to work. Again, possibly due to the bitscope only being able to generate 3.3V.

I've also tried a fan controller, which is 12V and sends out square PWM signals. Got it hooked up at the back... but it's not having it either! No movements whatsoever. Welp!
__________________
Need UKDM/EUDM/JDM/RHD Nissan parts? Hit me up
Insta: skids14
speedingmofa is offline   Reply With Quote
Sponsored Links
Old 07-22-2019, 02:48 AM   #2
speedingmofa
Zilvia Member
 
speedingmofa's Avatar
 
Join Date: Nov 2012
Location: Rotterdam, the Netherlands
Posts: 257
Trader Rating: (15)
speedingmofa can only hope to improve
Feedback Score: 15 reviews
Where the electronics experts at
__________________
Need UKDM/EUDM/JDM/RHD Nissan parts? Hit me up
Insta: skids14
speedingmofa is offline   Reply With Quote
Old 07-31-2019, 06:33 AM   #3
speedingmofa
Zilvia Member
 
speedingmofa's Avatar
 
Join Date: Nov 2012
Location: Rotterdam, the Netherlands
Posts: 257
Trader Rating: (15)
speedingmofa can only hope to improve
Feedback Score: 15 reviews
Hooked up a VSS sensor straight to the cluster, and its still not showing speed.
Now I remember something about the ABS ECU, when it's not hooked up, speed won't go up... Now on the look out for which signal i'm missing/needing
__________________
Need UKDM/EUDM/JDM/RHD Nissan parts? Hit me up
Insta: skids14
speedingmofa is offline   Reply With Quote
Reply

Bookmarks


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 05:54 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
vB.Sponsors
Copyright © 1998 - 2019, Zilvia.net™