No comms on a "new" ECM

[Ludis Langens]

Bob Wooten wrote:
> 
> So it is likely then that if the ECM appears to be running fine (not in LHM)
> but the comms don't work that the RS232 chip is in fact bad & that changing
> it MIGHT make it work again.  I suppose as the spare in the trunk ECM it is
> not the end of the world if the RS232 does not work, as long as I can get
> home.

Quick comment - it's not an "RS232" chip.  The ALDL port nominally uses
TTL signal levels (0 to 5 volts).

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


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