7747 A/C enable

Ludis Langens ludis at cruzers.com
Thu Aug 5 00:31:48 GMT 1999


Brent Obermiller wrote:
> 
> The
> 16136965 grounds the a/c relay to disable the Compressor while it appears
> that the 7747 grounds the A/c relay to enable the compressor.  For the sake
> of swappability, (i.e. not re-wiring) is there simple software 'fix' to
> invert the a/c enable? This contact is C2 on both ecm's.

Could the difference be that the ECM's A/C input has the opposite
polarity?  In cars, there were wiring changes when GM changed
compressors from the DA-6 to the V5.

-- 
Ludis Langens                               ludis (at) cruzers (dot) com
Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/



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