| Re: 86-89 Digital Instrument Cluster "OD" light |
Subject: Re: 86-89 Digital Instrument Cluster "OD" light by tequilaboy on 2012/12/14 1:57:26 Tonight I confirmed that Bit 0 of $0036 is what controls the OD indicator when running $6E software in an 87-88 car. ; b0 1 = CARS ACTIVE In $32B software this is $0035 bit 0: ; Bit 0 = 1= OVERDRIVE ON ; 0= OVERDRIVE OFF I mistakenly called it bit 1 in my previous post but really meant bit 0. Sorry for any confusion. My first attemt at clearing bit 0 resulted in a toggling of the OD indicator, so I knew I had the right bit this time around. The fix requires preventing the bit from being set as part of the CARS (CAGS) logic in $6E. Not really difficult to do, but it can be set in a couple of spots. I was a bit suprised that the dash uses 8192 baud data, but the shift light was a clue, since this is only present in the 8192 baud data stream. You learn something new everyday, I guess. |
