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6th Gen ('00-'05): Pcm

  #1  
Old 02-13-2019, 12:13 PM
Join Date: Oct 2018
Posts: 20
Default Pcm

hey guys I was told today from monro shop that my PCM is not getting no power to it does anybody know what this problem can be why it's not getting
power
 
  #2  
Old 02-13-2019, 01:09 PM
ChibiBlackSheep's Avatar

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Could be something as simple as the ground wire right there, or a rodent chewed something

Your PCM lives inside your airbox if you want to take a look.
 
  #3  
Old 02-13-2019, 01:24 PM
Join Date: Oct 2018
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it's crazy because it was a legit shop and they can't even figure it out and it been up there for 4 days they washed they hands with it and told me to send it to someone who specialize in electrical in cars
 
  #4  
Old 02-14-2019, 01:42 PM
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Originally Posted by Deshun Deathbefore Dishonor View Post
hey guys I was told today from monro shop that my PCM is not getting no power to it does anybody know what this problem can be why it's not getting
power
To be honest, no one is going to be able to provide an accurate diagnosis just based on that information having not seen the car in person.

If you're thinking about trying to fix it yourself, that problem shouldn't be terribly hard to diagnose. Get the pin out for the pcm, find the power wire to confirm it's not getting juice. Then backtrack that wire via the wiring diagram to the next place that wire goes - likely the fuse box. If it has power there (after the fuse), but not at the pcm, then you've got a wire break somewhere in between. If it doesn't have power at the fuse box and the fuse is ok, then you'll have to trace back from there - likely a break inside the box assuming everything else works.

As mentioned above, they could just mean the pcm isnt powering up which could also be a ground issue. Again, with the pcm harness pin out you can locate and check continuity/resistance to battery ground from the terminal.

It's not terribly complicated to diagnose with a DVOM and the wiring diagrams, but the fix may or may not be easy.
 

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