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No ground at PCM or at fuse panel 2011 Mazda 3 2.0l 5 speed standard n

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2 years 2 weeks ago #63127 by Lp626
No ground at PCM or at fuse panel 2011 Mazda 3 2.0l 5 speed standard n was created by Lp626
2011 Mazda 3 had front end damage and now I’m not getting any ground connection at my main relay. I checked the wire directly at the pcm no ground there either Aswell as where the harness goes into the fuse panel. My question is where does the pcm get its ground from ?

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2 years 2 weeks ago - 2 years 2 weeks ago #63135 by Chad
Replied by Chad on topic No ground at PCM or at fuse panel 2011 Mazda 3 2.0l 5 speed standard n
From G6, Left rear of engine.
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right. :-)
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2 years 2 weeks ago #63137 by Lp626
Replied by Lp626 on topic No ground at PCM or at fuse panel 2011 Mazda 3 2.0l 5 speed standard n
Not sure what you mean by G6. Would that cause the computer to put out the code P0606? When I ground the main relay out it will start but I get no throttle response and the codes P0606 and P2011

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2 years 2 weeks ago - 2 years 2 weeks ago #63144 by Chad
Replied by Chad on topic No ground at PCM or at fuse panel 2011 Mazda 3 2.0l 5 speed standard n

Not sure what you mean by G6.

G6 is the name of the ground, from which the PCM is grounded. It should be bolted to the left, rear of the engine.

Would that cause the computer to put out the code P0606?

It is, certainly, possible. P0606 is an internal PCM malfunction. Verify that the PCM is getting GOOD power and ground.
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right. :-)
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Last edit: 2 years 2 weeks ago by Chad.

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