Windshield wipers wont turn off. - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum

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Old 10-25-2006, 08:15 PM
dallas16v dallas16v is offline
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Join Date: Oct 2006
Posts: 11
Windshield wipers wont turn off.

I am confused unless its the switch or the relay. I am thinking the relay since the 2 fastest speeds will change the speeds of the wipers. Anyone else experience this issue?? BTW: HI I am a noob..
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Old 10-26-2006, 01:27 PM
Junior Member
2006 Chevy TrailBlazer LS
Sand Beige Metallic 4.2L I6 2WD
Join Date: Oct 2006
Location: Port Saint Lucie, Fl
Posts: 53
Sounds like a relay. Unfortunatly GM wiper motors, pulse modules are notorious for failing. Sounds like a relay, but may not hurt to have the pulse module checked out. alot of time, moistuture gets in them and everything starts acting goofy.
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Old 10-26-2006, 02:25 PM
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tblazed tblazed is offline
Basic Vendor- DRL Killer
2002 Chevy TrailBlazer LS
Summit White 4.2L I6 2WD
Join Date: Sep 2004
Location: DFW - The Republic of Texas
Posts: 2,212
All the electronics and relays are contained in the wiper motor ass'y. The steering column control stalk connects to the wiper motor unit through the vehicle wiring harness. Pretty simple but does get water in it sometimes, and even though there was a NHTSA safety recall about this, the "fixed" ones still fail. Water will get inside, corrode and make conductive leakage between circuit traces on the control board, and cause weird problems.
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Old 10-28-2006, 01:50 PM
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PaulSVX PaulSVX is offline
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2002 Chevy TrailBlazer LT
Summit White 4.2L I6 4X4
Join Date: Feb 2006
Location: Calgary, AB
Posts: 9
There is a recall for this problem. Mine was doing the same thing
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