Where is the ECM/PCM located?

2015 MITSUBISHI LANCER

75,000 MILES • 2.0L • 4 CYL • 2WD • AUTOMATIC

RHEDD0913

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Attempting to check voltage on the ECM/PCM for the car listed above ES model. The vehicle does not start and has some codes relating to communications such as the U0100. I wanted to check voltage to make sure it does not have a bad ground, while I can locate the ECM I can’t find details on the PCM and did not know where it was located or if it was part of the ECM.

Oct 13, 2022 at 8:16 PM

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Here is the PCM location and how to replace it if needed and I have included the PCM and engine wiring diagrams so you can see how the system works and which wires to test.

This guide can help as well:

https://www.2carpros.com/articles/how-to-check-wiring

Check out the images (below). Please let us know what you find. We are interested to see what it is.

Images (Click to enlarge)

Oct 14, 2022 at 2:01 PM