I have worked with 3 hand-helds: Snap-On's MT-25, a Genisys, and a
cheapie Actron CP9135. The Actron will display monitor status, identify global
(only) DTCs, and nothing else (it does not conform to SAE standards).
The Genisys has a color display, tons of
features, and seems to be horribly picky about the ground pin of the
ALDL; it refused to cooperate with maybe 25% of the cars I've tried to use
it on. I hate to say it, but I prefer the Snap-on, which uses swappable
maker-specific cartridges (extra $$) that allow reading of manufacturer
DTCs. It allows watching real-time signals, freeze frame, etc, and
usually offers useful diagnostic hints based on present codes for the specific
On Fri, 17 Oct 2003 04:51:47 -0600, gagir wrote:
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