Question about 2009 Pontiac G5

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Code po641 Hi. I have a 2009 pontiac g5. it's been two weeks that chik engine is Lighted post with reduced traction. and I hear the snap as transmission. I have it my scaner therefore give the following codes p0366. co561 plus p0641.thanks for your help

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SOURCE: 2009 2.2L Pontiac G5 Comes up code P0641 What does this mean? Thank you

po641 on a 09 g5 2.2 means that there is a problem with the 5 volt coming from the ecm the same 5 volts is sent to about 6 sensors you need to look at the 5 volt referance pid on a scan tool and disconect the sensors one by one till the referance volts comes to about 5 volts if that don't work then check the wires for a short to ground , usually ther are other codes in the memory to give you a hint

Posted on Feb 15, 2012

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2009 2.2L Pontiac G5 Comes up code P0641 What does this mean? Thank you


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