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International Automotive Technicians Network
Re: Vehicle tracking information, what can they do and not do?
Posted to Industry Issues Forum on 12/13/2003 6 Replies

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I can only speak for GM vehicles and all cars with SIR do NOT record vehicle speed. It wasn't until 1999 that GM started using enhanced SDM's on certain vehicle lines. The enhanced SDM's do indeed rec... Login to read more.

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