Hello,
There are many fuses and grounds (see diagrams below) that need to be checked before we can call the PCM being bad. Here is a guide to help check for power at the fuses and to check the PCM grounds using the engine wiring diagrams below:
https://www.2carpros.com/articles/how-to-check-wiring
Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.
Images (Click to enlarge)
Jun 18, 2019 at 2:00 PM