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Old 11-21-2019, 04:56 PM
Crusty Crusty is offline
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What year/make/model are you having the All-Module-Scan problem with-??
Since at least 2001, (and earlier) GM has had the ability in the Tech-II to check for all modules and report if codes are stored or not.
Sadly, the SnapOn scanners do not support this feature on a great many vehicles, even though the vehicles ARE capable of reporting this information.
SnapOn have been very reluctant to fix this issue in the past. They apparently don't think an All-Module-Scan is important enough on older vehicles.
It is very well known that a problem in one area can cause a cascade effect and cause issues with other systems. This is not limited to just GM vehicles either.
Not enough people complained about it I guess.
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