![]() If you remain connected and spend any amount of time going through all the menus or playing with all the options, you'll discover just how quickly you can drain the battery if the car isn't running. Learned something important when scanning my vehicle - don't run prolonged scans (longer than 30-minutes) unless the engine is running or you have a trickle charger running. The unit paid for itself many times over already, and I STILL don't know how to use it. Sure enough, the electrical connection on the solenoid's housing was cracked and the wire broken (my fault last time I cleaned the motor brushes). I used it a month ago to diagnose the top on the A4, it was actually detailed enough to recognize there was an open or ground fault with one of the solenoids on the hydraulic pump. I used it the other day to diagnose my A4, MAP sensor was bad, a $38 fix. Once I unplugged the glove box switch and light, the fuse stopped blowing. Some faults were too generic to find (like my courtesy light failure, merely said ground or open fault-but other posts on this forum led me to a faulty switch in the glove box. ![]() Some of the information is hard to find, like how to reset my top fault, but finally found it and got it sorted. Identified all kinds of issues (including some I didn't even know I had). ![]() I've had mine a couple of months, can't believe I didn't have one years ago.
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