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Old 02-21-2018, 11:12 PM   #1
Junior Member
 
Join Date: Sep 2017
Posts: 3
92 Pace Arrow Odometer

We purchased a 92 pace arrow with no ODO display. Searching online I found that the memory batteries die and can cause this. So dug into the dash found where the battery solderers to the ODO had a bad connection and the 3.3 battery was indeed dead. soldered in a new one and got all "-------" on the lcd. back to google seems my options were not much without replacing the whole cluster.
Not going to support a company that built this thing with guaranteed failure built in.
So i started making my own odometer with an arduino and as I was removing the old ODO and shield etc to
make room for the new stuff I saw the pin out hidden under the plastic mount see attached pic.

GND --- ODO
IGN --- Hours
Prog --- Pwr/Fail
VEE --- Sel/Res
-------- VEE


these are the same on the two connectors at the bottom center of the cluster.
So I figured this thing is dead anyway lets play.
I touched a jumper from prog to vee it put the ODO into programming mode.
The sel/res button cycled through the values just like setting an old clock the digit to be changed flashed.

I touched a jumper from odo to vee to advance the number.


On the last screen it came up with a number 1 if I left that I only had total miles displayed
I changed it to 2 and get total miles and one trip meter 3 gives total and hours.


Once I advanced past that screen it exits program mode and functions as normal.

I did this all on a bench with 12v and IGN powered from the back connectors.


I take no responsibility for any damage by someone trying this. I have no special knowledge of the internals other than what worked for me.
The Speedometer face does not need to be removed.



Hopefully this can save someone a headache.
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Old 02-23-2018, 02:44 PM   #2
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Join Date: Mar 2009
Posts: 608
What chassis?

Richard
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Old 02-23-2018, 11:17 PM   #3
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Quote:
Originally Posted by RLS7201 View Post
What chassis?

Richard
GM P30 Chassis.
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Old 05-16-2019, 04:53 AM   #4
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Join Date: May 2013
Posts: 15
Question for you

Ours is a 93. Odometer display is cut in half unless you push on the screen. I took the unit out of the dash but can't see how to remove the odometer from the board. Was hoping for just a broken solder joint but can't see much with the yellow plastic shroud in place.

1. How'd you get the plastic shroud from around the odometer off the board?
2. Does the odometer unplug from your board?

I just don't want to mess things up beyond what they are since it sort of works now.

Thanks!



Quote:
Originally Posted by Kclo3 View Post
We purchased a 92 pace arrow with no ODO display. Searching online I found that the memory batteries die and can cause this. So dug into the dash found where the battery solderers to the ODO had a bad connection and the 3.3 battery was indeed dead. soldered in a new one and got all "-------" on the lcd. back to google seems my options were not much without replacing the whole cluster.
Not going to support a company that built this thing with guaranteed failure built in.
So i started making my own odometer with an arduino and as I was removing the old ODO and shield etc to
make room for the new stuff I saw the pin out hidden under the plastic mount see attached pic.

GND --- ODO
IGN --- Hours
Prog --- Pwr/Fail
VEE --- Sel/Res
-------- VEE


these are the same on the two connectors at the bottom center of the cluster.
So I figured this thing is dead anyway lets play.
I touched a jumper from prog to vee it put the ODO into programming mode.
The sel/res button cycled through the values just like setting an old clock the digit to be changed flashed.

I touched a jumper from odo to vee to advance the number.


On the last screen it came up with a number 1 if I left that I only had total miles displayed
I changed it to 2 and get total miles and one trip meter 3 gives total and hours.


Once I advanced past that screen it exits program mode and functions as normal.

I did this all on a bench with 12v and IGN powered from the back connectors.


I take no responsibility for any damage by someone trying this. I have no special knowledge of the internals other than what worked for me.
The Speedometer face does not need to be removed.



Hopefully this can save someone a headache.
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Old 05-18-2019, 12:09 AM   #5
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Join Date: Sep 2017
Posts: 3
Its been a while but it does pull out of the connector. There was some crazy strong white rubbery glue holding it to the board.

The clear plastic is part of the lcd module it should all come out as one piece.

its stacked in the housing LCD-some conductive rubber strips the PCB then the plastic is melted on the bottom to lock it all in there. Sound like you have a bad connection on the rubber strips this is common on the older LCDs.
I'll look around I may have some more pics.

Found my pics they don't show anything that would help ya. If I recall the shroud had a bunch of little screws in the back but not too sure. Mine did break apart pulling it out because of the glue but I was pretty rough because mine didnt work at all. I was intending to rip it out and fit something else in there until I saw the markings on the board.
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