Universal Tester vs Scanner

First all I want to welcome you to the site with this first post on our blog! taking advantage of this tool to stay in touch with all our customers and the community in general. Therefore, we want to take advantage of it to provide more and better products.

Now to the point.

This first subject for the blog came to me because we have come across many people who have a wrong concept of what you can do or not with the AutoMA, and what you can do with an OBD II scanner.  First of all, they are DIFFERENT tools that are used together to fix faults in direct fuel injection vehicles. For example, a scanner could give a failure code for an IAC that is the beginning.

Well-known it is, the ECU (engine control unit) reads all sensors and controls actuators so that engine works and functions properly, that’s it. It can detect faults in its readings that can be associated with a faulty sensor or a bad actuator, is this case the scanner is a useful tool to diagnose failures that detects the ECU, giving to the mechanic an idea (or certainty) of where the fault is and then repair it.

Engine Control Unit Source: tun-tech.com

Engine Control Unit Source: tun-tech.com

The problem comes when the ECU reports a failure (such as the IAC) and the mechanic doesn’t make or cannot make an effective diagnosis of the failure, since it is a mechanical element it can fail without necessarily being damaged, it can present signs that any mechanic can identify and decide if it should be replaced. But when there are no apparent signs, the situation becomes complicated, since there are other factors such as wiring or bad contact, among others, which can take a long time to detect.

The most common result in this case is to replace the IAC, then the owner of the vehicle spends his money and his time in the purchase of a new part, so that when it is installed the failure is still there.

There is where the Universal Tester comes into play, with this mechanic tool you can test the IAC on a test bench or on the vehicle to determine accurately and quickly if the part works or not.

To be sure the IAC works, the fault is quickly isolated and resolved thus saving money, time and effort not to mention the professional component that adds to your work that is widely appreciated by customer (and because you did not make him buy a new IAC in vain).

Let’s say that IAC was a simple example of the difference between the two tools, there are some cases where the use of the tester is absolutely necessary, as in the coils. There are temporary or intermittent faults which are associated with other components easily and turns out the problem was a faulty ignition coil (not burned, that’s easy) with poor spark but enough to believe at first sight it has no problem.

This is why the two tools are different and should be used together to give an effective diagnosis, avoiding loss of time and customer money that he surely appreciates.

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