I recently purchased a used 2002 v70xc. Today I was at pick and pull to find some back up parts. I called a shop called volpar, Volvo specialists, and the woman I spoke with stated that if I need to replace a part, such as the ABS CONTROL MODULE or ELECTRONTIC THROTTLE MODULE (ETM) that I would need a software update. When looking at these parts, by that I mean literally taken them apart, I did not identify anything that resembled a computer. So I'm a little stumped here, I understand there is a computer in the vehicle and know where it is located. How does the software update effect these parts? Are there part specific updates or is it just an overall vehicle software update? Does the software update have a significant effect on performance? Would my vehicle require a software update even if I was to take identical parts (with matching numbers) from another 2002 v70xc?
Help!
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