Three steps from a rough idle to a repair order you can stand behind. No new hardware, no new scan tool, no change to how the bay already runs.
AceDx starts from what your scan tool already sees. Nothing gets installed in the bay and nothing gets plugged into the car that wasn’t going in anyway.
The point of reading widely is context. A single code tells you a circuit is unhappy. The freeze frame tells you what the engine was doing when it happened, and the live data tells you whether it’s still happening now. A veteran reads all three before opening their mouth. So does AceDx.
About thirteen seconds after the codes go in, the tablet shows one call. Not a ranked list of nine possibilities with probabilities that add to 140%. One call, with a number on it and the evidence underneath.
That number is the whole point. A verdict at 87 means swap the part. A verdict at 54 means run the test it names before you spend a customer’s money. The tool is telling you how much weight the call will carry, which is exactly what the sharpest guy in the shop does when he says “probably” instead of “it’s the coil.”
Everything on the card is there so the call can survive a second opinion: yours, another tech’s, or a customer asking why the estimate says what it says.
One part, one cylinder, one circuit, named specifically enough to pull it off the shelf.
How sure it is, as a number. 87 is a different instruction than 54, and the tool tells you which one you have.
What to do about it. Usually the cheapest test that would prove the call wrong.
The codes, counters, and freeze-frame values the call stands on. You can check its work.
Part number and labor time, so the call becomes a line on the estimate without a second lookup.
This is the step most diagnostic tools skip, and it’s the one that decides whether any of this was worth doing. A call isn’t right because it sounded right. It’s right because the fault stayed gone.
So AceDx doesn’t close a verdict when the part goes in. It closes when the retest comes back clean. If it doesn’t, the call stays open and the tool says so. A shop that eats comebacks knows exactly how much that distinction is worth.
What you get out the other side is a record: what was called, what was done, and whether it held. That’s the part that compounds.
A tool that oversells itself gets ignored by the second week. Here’s the honest boundary.
We're running a hands-on pilot with working shops this fall. Real vehicles, real ROs, your techs holding the tablet.