dtc 641

Asked by GuruX6F3C Nov 17, 2018 at 08:03 PM about the 2007 Pontiac Montana SV6 Base Extended Minivan

Question type: Maintenance & Repair

I have a code 641 coming up on my scanner says sensor a 5 volt signal lost how do i fix it ?

1 Answer
50

Artmendi answered 6 years ago

check your sensor connector and see if you have 5 volts. if not check short to ground if you have 5 volts then change the sensor.

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