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Welcome, I'm Chris (aka Moose) I prefer to work when others don't, I am here around lunch and after dinner till after midnight.
Does your instrument cluster tell you which door is ajar or does it just tell you a door(s) is ajar?
1)Those cut wires is about 5 of them and are there cut wires near the drivers side hood hinge that match those wire colors?
2)Here are the steps to follow for a drain concern to find the circuit to blame. https://dl.dropboxusercontent.com/u/90220402/draintest.pdf
3) Fuse 26 only powers the instrument cluster on a yellow/red wire. Can you find what is causing this noise and see if this color wire wire anywhere under the dash or in that area is messed with. You may need to remove and unplug the cluster and remove this fuse then OHM test that wire at the cluster to power and ground. You should get an open circuit both ways. If you get continuity to power or ground then someone has spliced into this wire.
4)Door ajar, access any one of the door ajar sensors. Door open is one wire to the sensor ground, door closed are both wires to it now grounded? https://dl.dropboxusercontent.com/u/90220402/doorajar.pdf
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This throttle body concern is likely your drain source as well.
When its making noise with the key removed, unplug the throttle body and tell me which wires have any voltage.
Does fuse 74 under the hood gill power on this connector.
Does the PCM relay removed stop these issues?
I think your PCM is staying powered up along with other circuits.
PCM relay out, the PCM should not be sending ground to the relay on pin 85.
If there is no ground, then the relay is bad.
If there is ground then unplug the PCM and retest.
If there is no more ground now at the relay then the PCM is bad or being powered up, check fuse 71.
If unplugging the PCM still results in pin 85 grounded then the wire is shorted to ground.
Here is a diagram.
Now you can test the relay pins from the diagram I sent then continue the test at the PCM.
Hello again Chris here,
The PCM should not be grounding this wire. Something is keeping the PCM powered up wit the engine off?
Is fuse 71 still powered with the key off?
Thanks, ***** ***** narrowed down to the instrument cluster or PCM to blame. If fuse 36 under the dash is not powered with the key out then this means the cluster is telling the PCM that the key is on and the PCM is staying on and energizing the PCM relay.
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Replacing the instrument cluster is the next task since it being unplugged kills the PCM and the PCM relay.