Quote:
Originally Posted by Ccmano
Learned something new today. 90-91 instrument clusters are NOT interchangeable with 92-96 clusters. At least not the LCD module. Everything else worked fine.
The tach on my 90 cluster is way off, some of the lights are out and the oil pressure gauge is off. So I found a great deal on a newly rebuilt low mile 96 LT4 cluster. Did the swap today only to find out that the LCD display went wonky showing jibberish. My frist thought was the new cluster LCD was defective. I had always thought all years were interchangeable.
So I sent Brian Thompson at Batee.com an email with a photo of the new cluster jibberish. Much to my surprise and satisfaction I got immediate reply (that’s customer service). He informs me that the LCD’s are indeed NOT compatible. The “electrical protocol “ was changed between the two.
The good news is that I can swap the LCD modules (the old LCD is still excellent, although I may rebuild it anyway) and I’m good to go. The LDC modules are a simple plug in.
H
OLD Cluster
NEW Cluster
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I included this thread in -Solutions- (third post - ZR1 Electronics under KEYLESS ENTRY, TACHOMETER, CRUISE). The technical information is greatly appreciated. I did not know such differences in clusters existed but having said that it seems
Paul has a handle on the most obvious issue that comes up once in a great while (Tachometer calibration).
Tachometer Calibration TIPS