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1988 GTA digital dash wiring diagram

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Old Nov 19, 2009 | 09:11 AM
  #1  
shone190's Avatar
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From: Serbia - BELGRADE
1988 GTA digital dash wiring diagram

Does anybody have wiring diagram for Firebird GTA 1988 digital dash?

I have some problems, km/h doesn't work (it's always 0 km/h on display), and display which shows trip and other things regarding mileage also doesn't work (there is nothing on display).

Thank you all in advance!
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Old Nov 19, 2009 | 03:24 PM
  #2  
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From: Daytona Beach, FL
Car: 88 GTA
Engine: 355 TPI
Transmission: 700 R4
Axle/Gears: 370 BW
Re: 1988 GTA digital dash wiring diagram

Check your fuses for sure. I have the same dash and have had that problem. If you speedometer is reading zero check the wire to the VSS (connection at the back end of the transmission (tail housing). Is the odometer screen blank or just not adding mileage? I will look and see if I have a schematic that includes the digital dash.

Good luck!
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Old Nov 20, 2009 | 02:05 AM
  #3  
shone190's Avatar
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Re: 1988 GTA digital dash wiring diagram

Thank you, I'll check that. Odometer is blank, but in one moment I see mileage on display, but just for moment

Please, take a look if you have a schematic for dash, it will help me a lot.
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Old Nov 20, 2009 | 07:36 AM
  #4  
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From: Chester, VA
Car: '88 GTA
Engine: L-98
Transmission: T-56
Re: 1988 GTA digital dash wiring diagram

If the horn works its not a fuse.

After fixing my steering column this summer my horn decided to just start blowing about 800 miles after the column repair. In a pinch, I pulled the fuse to kill the horn, and my display read the same as you're describing. Just a thought.
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Old Nov 20, 2009 | 01:49 PM
  #5  
shone190's Avatar
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Re: 1988 GTA digital dash wiring diagram

Horn works, if you meen on sound (beeeep!) after system check. I didn't understand you, when you pulled the fuse, display start or stop work?
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Old Nov 20, 2009 | 02:07 PM
  #6  
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From: Chester, VA
Car: '88 GTA
Engine: L-98
Transmission: T-56
Re: 1988 GTA digital dash wiring diagram

It stopped working with fuse pulled, along with the horn on the steering wheel.
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Old Nov 20, 2009 | 03:40 PM
  #7  
shone190's Avatar
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Re: 1988 GTA digital dash wiring diagram

Aha , horn on the wheel doesn't work Maybe it's the same problem. I'll check it.

Thanks!
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Old Apr 12, 2010 | 12:59 AM
  #8  
88 TA GTA's Avatar
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Car: MSD Dist., Crane Hi 6 ignition
Engine: 350 - 50 over, S/R Torquer Heads
Transmission: T56 - Originally a 700R4
Axle/Gears: 9 bolt posi with 370
Re: 1988 GTA digital dash wiring diagram

Originally Posted by shone190
Aha , horn on the wheel doesn't work Maybe it's the same problem. I'll check it.

Thanks!
horn, power locks and int lights are on the same circuit as the DIC (Drivers info center) if the fuse blows the speedo will be all over the place and none of the above will work.
Mine just started blowing fuses, not sure why...can't seem to find any posts on this...
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Old Oct 30, 2012 | 07:39 PM
  #9  
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Re: 1988 GTA digital dash wiring diagram

i need a diagram, lol, my friend stuck a penny in my lighter thing on my 88 trans am gta digital dash. annnnd ya so i pulled fuse, but when i put it back in it starts smoking
horn, speedo,odo, int lights dont work, also radio and locks
anyone have diagram? im gonna have to rerun the wire lol
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Old Oct 31, 2012 | 01:00 AM
  #10  
88 TA GTA's Avatar
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Car: MSD Dist., Crane Hi 6 ignition
Engine: 350 - 50 over, S/R Torquer Heads
Transmission: T56 - Originally a 700R4
Axle/Gears: 9 bolt posi with 370
Re: 1988 GTA digital dash wiring diagram

it should have blown the fuse, did you get the penny out? Or do you have a larger amp fuse installed?
if its the right size fuse it should blow. Check your wires underneath the lighter. If you or your friend were moving things around the wires could be shorting out. It happened to me when I reinstalled the console after the 6 speed swap. I was moving the new wires around and they pulled on the lighter wires till they touched and that was that.

If the above doesn't resolve it, check previous pages on this thread for the diagram.
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Old Oct 31, 2012 | 10:36 PM
  #11  
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Re: 1988 GTA digital dash wiring diagram

i cant seem to locate a diagram anywhere.. it seems hard.. i may buy a manual. if i do im scanning the whole thing and putting it on here, why hasnt anyone done that yet? i mean dang! im poor! and i gotta do it,,jeeze... lol.
wires are fried...well.the rubber off them is! every time i put a fuse in it smokes then blows....im only putting a 10 in. lol
well heres my plan sofar
pull center console. putt the little section that holds the radio and heater and......then pray to god thats as far as the wire goes, simply replace it at....wherever it splits off from the one going to the fuse box and hope im good. lol.. but a diagram would let me know if that will work, lol
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Old Oct 31, 2012 | 11:20 PM
  #12  
eseibel67's Avatar
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From: Kitchener, ON
Car: 1988 GTA
Engine: LB9
Transmission: T5
Axle/Gears: 3.45
Re: 1988 GTA digital dash wiring diagram

I have the compete 26 page digital cluster section of the 1988 Firebird service manual in .PDF, but the file is too large to post. PM your Email address to me and I'll send it to you.
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Old Nov 2, 2012 | 01:07 AM
  #13  
88 TA GTA's Avatar
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Joined: Dec 2007
Posts: 146
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Car: MSD Dist., Crane Hi 6 ignition
Engine: 350 - 50 over, S/R Torquer Heads
Transmission: T56 - Originally a 700R4
Axle/Gears: 9 bolt posi with 370
Re: 1988 GTA digital dash wiring diagram

https://www.thirdgen.org/forums/body...ital-dash.html
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Old Nov 2, 2012 | 06:24 AM
  #14  
eseibel67's Avatar
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From: Kitchener, ON
Car: 1988 GTA
Engine: LB9
Transmission: T5
Axle/Gears: 3.45
Re: 1988 GTA digital dash wiring diagram

^ ha, that's where I got it from.
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