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2011 GMC Terrain, Stock Subwoofer Dead?


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mennitti 
Copper - Posts: 55
Copper spacespace
Joined: June 26, 2006
Location: United States
Posted: March 13, 2014 at 2:52 PM / IP Logged  
I'm working on a 2011 GMC Terrain. The system works fine, all speakers sound good, the stock subwoofer is dead. The fuse to the amp is good. I unplugged the 4 wire plug to the sub and get 1.7ohm per coil (I assume, going with the set of tabs for top and bottom left side and right side.) I wired a spare speaker into the factory plug and it does not play either. Is the stock amp bad or can I test something else? Thanks.
sparkie 
Platinum - Posts: 2,061
Platinum spacespace
Joined: November 06, 2003
Location: Canada
Posted: March 13, 2014 at 5:47 PM / IP Logged  
If the vehicle is not equipped with the Boss audio system and has the 2.4 litter engine, then the subwoofer is not used for the audio system. That speaker is then used for the active noise cancellation system. It uses 2 microphones the amp and that sub to reduce road and engine noise from the interior. This is a common concern for many owners.
sparky
mennitti 
Copper - Posts: 55
Copper spacespace
Joined: June 26, 2006
Location: United States
Posted: March 13, 2014 at 6:54 PM / IP Logged  
Thank you. :D

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