I bought this to recalibrate the faucet door actuator on my Jeep Grand Cherokee. I've learned over the years that if you want to do anything with a modern car other than change the oil and brakes, you really have to talk to computers. Tool and I've since used it to diagnose an issue with my 4WD system (it was a rear diff module) which paid for it in full - it's a $1600 repair at the dealer. I can unreservedly recommend this tool to the hobby mechanic at a high level. .
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