Hi Guys, so I bought a JB4 from someone off the forum, and thought that today since i'm on leave could fit it on. got the manuals and watched the videos, was all ready.
fitted it on and tried to start, just swings and swings, so I check and recheck for at least another 20 times, all the connections are fine, the power is connected, but still doesn't take. I disconnect the JB4 and its fine, do that atleast another 5 times back and forth. even connect it to my laptop while it was powered up with the normal connection, still nothing.
I did exactly what the manuals said. were you supposed to still get something on your laptop when the engine isn't running, but when its connected to the car?
could the unit be faulty? any assistance please.