SOURCE: i have a 2004 h2 hummer and my wipers and sprayer
they have a controll module afixed to the wiper motor itself. these modules have been an issue for gm for some time. they are very simple to replace and "usually" fix the issue.
SOURCE: 2003 HUMMER H2
Had the same problem. i have to re-place my front wiper motor they are all connected.
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