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gxp speedo problem



It's an actual reprogram from SPS using a tech2 or MDI. It will teach it the vin number, options, etc.

If that doesn't for some reason fix it there might be a problem with the cluster itself.
I have seen different pin outs as well from different years


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rperry435 said:
It's an actual reprogram from SPS using a tech2 or MDI. It will teach it the vin number, options, etc.

If that doesn't for some reason fix it there might be a problem with the cluster itself.
I have seen different pin outs as well from different years


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You are going to have to help me with this language lol. Whats SPS? I will hopefully get this figured out tomorrow before I go back to school. Thanks
 
Perry you seem to have the knowhow and access to the tool.. where in MI are you? provided its not outrages priced id pay to have ya hook me up, i need my BCM done for the HVAC upgrade to heated seats, DIC reprogram to correct milage, and speedo... hell anything to open up my BCM id be happy lol
 
I'm located in Saginaw.

You can't unlock a bcm. Sometimes you can program options or configuration but rarely . dic and speedo aren't a problem.Hvac would be a separate module that would be flashed/programmed..

I can't remember ever seeing hvac on the list for a gp. Perhaps the wiring harness itself is physically different on cars with heated seats. I could look.

Definitely an update for the pcm on our cars but if you tune with hpt or anything else the update would be pointless.

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Alright I still have not came up the solution to fix my speedo. I tried using a tech2...couldnt figure it out...GRRR these lights are starting to bother me! haha
 


well for one if i remember correctly gxp speedo goes up higher in speeds...and for two its made for a v8 :p so you would probably need a tuner for it
 
I was honestly thinking of that today, but 80% of the reason I changed was because it went to 160. I have my original speedo apart at the moment trying to figure out which relay triggers or checks for abs/trac/brake. If there even is one lol
 


if he peeled off the overlay and put it on the normal one his speedometer would be really off probably by about 10 miles per hour
 
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