DTC check xmission light

[DAVE_HEMPSTEAD at HP-Andover-om3.om.hp.com]

Hi,
   Well, I modified my scanner software, and am now able to watch on my laptop 
internal ECM memory locations while the engine is running.  I've been able to 
eliminate all but one trouble code, and I don't have the data I need to solve 
this one.

   I'm running my Impala SS '96 LT-1 engine with a '95 ECM.  I have the factory 
service manuals for the engine, but not for a '95.  The trouble code is:  Check 
Transmission Light open failure'.  I can believe this, since the '96 FSM doesn't
list a 'Check Transmission' light anywhere that I can find.  I assume the '95 
has this light, and it hooks up to the ECM somewhere.  Since I don't have this 
attached, I can expect this trouble code.

   Can anyone tell me what plug and pin in the ECM is used for the 'Check 
Transmission' light for a '95 LT-1?????


Thanks,
Dave Hempstead