The LineSpi Smart BOB is a very valuable tool when dealing with network or communication issues. It allows you to be more efficient. The LED's on the power lines gives you a quick visual on whether power and ground is at the DLC or not.
One instance was that it was missing ground on of the 2 ground lines and the scanner wouldn't communicate. Rather than stopping and trying to fix the circuit, I simply used a jumper wire and jumped pins #4 to
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