96 Ram 1500 speedometer doesn't work
#41
#42
Good thinking
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<p><p>I didn't stop to think about the odometer. Since the Plexiglas isn't in the best of shape,and I don't have a tachometer, I may have to unsolder some components to customize my dashboard cluster, while keeping the odometer intact at 79,000. Fortunately, my state has an odometer statement exemption for vehicles 10 years or older.</p></p>
<p><p>Maybe I can get used to,and prepared to removing and replacing components at board level and film my first ever YouTube/DF DIY video. I'm looking forward to tearing into my dashboard in hopes off getting this problem solved and moving onto another ablj;</p>
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<p><p>I didn't stop to think about the odometer. Since the Plexiglas isn't in the best of shape,and I don't have a tachometer, I may have to unsolder some components to customize my dashboard cluster, while keeping the odometer intact at 79,000. Fortunately, my state has an odometer statement exemption for vehicles 10 years or older.</p></p>
<p><p>Maybe I can get used to,and prepared to removing and replacing components at board level and film my first ever YouTube/DF DIY video. I'm looking forward to tearing into my dashboard in hopes off getting this problem solved and moving onto another ablj;</p>
Last edited by torxdurley; 06-15-2014 at 09:07 AM. Reason: submitted before finishing
#44
Update on Speedometer not working.
Thanks to a generous member (Franky) who donated me a used instrument cluster I was able to make some headway.
My original cluster does not have a tachometer, and the donor cluster does. And the fuel, oil pressure, voltage, and temperature gauges are in different places.
I reset the donors mileage manually and placed it in my truck today.
Everything works great except the tachometer does not work. Speedometer does fine as well as the gauges, but sadly, no tachometer.
On the donor cluster, there is a 3rd small black connector which I do not have a pigtail for, if it was ever used at all. All the documents Ive read say that there are only two connectors.
I am extremely happy that I have a working speedometer and the fuel gauge seems to work better than my original one.
So unless someone can speculate as to why the tach. doesn't work, I am going to button her back up and be happy that I have a working speedo and leave it at that.
I might mention that my OBDII device has a tachometer in the list of sensors and on the "dashboard" that shows RPM correctly so I know that the VSS is sending the correct information.
Thanks Franky for the nice donation. I really appreciate the help my friend.!!!
P.S. I plan on a short DIY on replacing the whole cluster or individual parts. It's pretty simple. There are a few "serious do not do what I did" items I plan on pointing out. The hard part is putting everything back together.
Thanks to a generous member (Franky) who donated me a used instrument cluster I was able to make some headway.
My original cluster does not have a tachometer, and the donor cluster does. And the fuel, oil pressure, voltage, and temperature gauges are in different places.
I reset the donors mileage manually and placed it in my truck today.
Everything works great except the tachometer does not work. Speedometer does fine as well as the gauges, but sadly, no tachometer.
On the donor cluster, there is a 3rd small black connector which I do not have a pigtail for, if it was ever used at all. All the documents Ive read say that there are only two connectors.
I am extremely happy that I have a working speedometer and the fuel gauge seems to work better than my original one.
So unless someone can speculate as to why the tach. doesn't work, I am going to button her back up and be happy that I have a working speedo and leave it at that.
I might mention that my OBDII device has a tachometer in the list of sensors and on the "dashboard" that shows RPM correctly so I know that the VSS is sending the correct information.
Thanks Franky for the nice donation. I really appreciate the help my friend.!!!
P.S. I plan on a short DIY on replacing the whole cluster or individual parts. It's pretty simple. There are a few "serious do not do what I did" items I plan on pointing out. The hard part is putting everything back together.
Last edited by torxdurley; 07-01-2014 at 01:51 AM. Reason: Change typo
#45
#46
Will do
Tach signal comes in on connector 215, pin 3, Gray with light blue trace. Comes from PCM. Grounds thru the common I/C ground. (that part of the circuit seems to be fine, as other stuff works.) Before you button it all up, check and see if you actually have a wire there. (should.....)
#47
Checked
Tach signal comes in on connector 215, pin 3, Gray with light blue trace. Comes from PCM. Grounds thru the common I/C ground. (that part of the circuit seems to be fine, as other stuff works.) Before you button it all up, check and see if you actually have a wire there. (should.....)
The backs of the two boards look entirely different. I wonder if the tach isn't a function set up within the PCM.
#48
#49
Mixed signals
Is that a typo or do you mean (at PCM connector) ? Or do I need to wake up and go to sleep?
#50