Otc (3415) Can Test Box - Breakout Box And Protocol Detector

Breakout box showed up earlier than expected and works great

Very well made. Very useful to see activity on other OBD lines that was not expected.Also included in the package are two short banana cables, one with a switch, that can be used to interconnect lines for special testing.I agree with earlier reviews: low voltage beeper is annoying and cannot be turned off; second CAN lines should also be color-coded.I dropped a star because this unit seems designed for the right-hand drive market where its shortish 28-inch cable does not matter, as its face labelling is right-side up on the way to a laptop on the passenger seat to the left. However, when it is used in a North American vehicle, the labelling is upside-down when you are connecting to a laptop to the right of you. Slightly annoying. For the NA market, the cable needs to be 2 or 3 feet longer so that there is room to turn the unit right-side up. The orange numbers that label the OBD lines are not very visible in poor lighting - an LED behind each number would be helpful.

OTC has always made a decent tool, and this Break Out Box is no exception. Lets you know at a glance the system voltage and all working CAN lines. Using this with an oscilloscope enables you to diagnose any voltage or ground issues and if the CAN lines are working properly. A must have tool.

The only feature this is missing is the ability to isolate pin 16 from the vehicle in case you need to pipe 12v in by yourself. Aside from that, it's a great breakout box. Connections are nice and snug and the pass through ability for your VCI is excellent. If you call yourself a diagnostic guy, you better have one of these.

nice looking tool, have my launch hooked up with it. love the voltage readout feature, but do not like the voltage limit alarm. it can be very annoying. need a mute button or a switch to turn of the beeper. other than that, you can't go wrong with this tool. must have for CAN/LAN system.