Question about 1996 GMC Sonoma

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96 GMC Sonoma, complete electrical failure, checked fuses in panel on the side of dash. Was riding along and everything shutdown, no lights, radio, horn etc. Help Please!

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Hi! Its definitely a PCM (powertrain control module) failure. The PCM has connectivity on all electrical current that runs inside the car including the engine and transmission. If the PCM is faulty everything else fails. Once the PCM is replaced you'll be good. Hope this helps and thank you for using FixYa!

Posted on Sep 10, 2010

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Posted on Jan 02, 2017

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