2007 Chevrolet Impala V6 with code p0641, what does the p0641 code mean?
HI there
This code means there is a problem with the 5 volt reference circuit. This could be a shorted ecm, wire or a problem with one of the sensors on the 5 volt circuit.
P0641 CHEVROLET - 5 Volt Reference Voltage Incorrect Read more: https://www.autocodes.com/p0641_chevrolet.html
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