No PCM communication

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tritron

New Member
Joined
Jan 29, 2026
Posts
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Location
Denver, CO
I just goy my suv from action. It had missing relays under hood 10 and 40 position. I replaced fuse 40 fan2 it has 5 prongs. I am missing relay Power distribution box relay. Is missing relay causing it to cause pcm not beining detected ?
 
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