C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

'91 LCD display half missing?

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Old Apr 21, 2006 | 05:13 PM
  #1  
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77vetteuk
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From: Lincolnshire,ENGLAND
Default '91 LCD display half missing?

OK, Parked my '91 up tonight- tuned engine off, flipped headlamps down then put parking lamps back on, locked car with anti theft on.
Came back within 5 mins, half the LCD display was missing. Fired her up-still the same WTF?

Display looks in bits, like half of the digits are missing. What caused this, and how can i get it back to normal?
Will re-boot ecm,clean up ground etc tomorrow,if no good i'll drop the column,pull the cluster and clean connectors.
If i drop the steering column will it affect the air bag in any way? (dumb question but i want to make sure before i go tearing in)

Any info appreciated, THANKS.
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Old Apr 21, 2006 | 07:11 PM
  #2  
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dropping the column is easy and won't effect the air bag in any way.

as for the display... is it just not visable, or is the 8 looking more like a 3 or a 1?
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Old Apr 21, 2006 | 10:00 PM
  #3  
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From: 1992 LT1 6 speed Cayman Islands
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On my 92 I occasionally get this and in my case it is due to the plug in at the back of the IP being loose in the plastic it fits into.
I can get it back without dropping the column by :
1 Remove the black plastic dash panel. ( 4 plillips screws)
2. Remove the clear lens ( 6 thorx screws )
3. Remove 4 5/16 head screws that hold the IP in place
4. Shift the IP around a bit so that it seats better in the socket
5 Find the spot where the whole speedo readout lights up and hold the IP in that position while you tighten the 5/16 screws that hold the IP in place.
6. Reassemble clear lens and dash bezel.

hope this helps
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