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Thanks Mark.
Is this on the trans tunnel inside the truck?
Finally verified where the bower motor speed controller is on my EATC truck (sorry for mis-lead earlier - not felt well today and was too tired to verify earlier). See pic attached.
Problem solved. Thank you all very much!!!
The previous owner was the guilty one. A bad wire connection was the cause.
Thanks again.
Originally Posted by Hartwig
Now I know where my blower motor regulator is located. Its next to the blower motor.
but what is this for a part inside the truck on the trans tunnel (pic of inside the cabin)?
That is why I (finally) posted the picture of the EATC controller - next to the blower motor, behind the A/C cycling switch (again - sorry for not verifying earlier). The pic you posted from inside the cab sure looked like a resistor pack (blower motor controller). This isn't more of the "wild electrical mods" from the previous owner is it?
Is that wire short you showed in the BR/OG wire from the relay? If so, that is the pinpoint "step 2" mentioned earlier.
That teal wire looks like it’s a smaller gauge wire than the factory it’s connected too. I guess before the next long trip you’ll be going over every inch of the trucks wiring to search for more sabotage.
Due to the discoloration, a high resistance connection at the splice that might show good voltage when no load is applied, which is why I asked about checking voltage under load with the connector attached.
Mark, that layout is essentially no different than the 2003. G104 is the 8ga connection between the battery and the fender. The 1 of 3 connections between supply and the ground plane (the body tub) that all harness negative side or grounds connect to, with the exception at the tail of the truck.
The body tub is the ground plane. It is supplied by the 8ga cable and the two 12ga bonding cables. From the ground plane, all other electronics are supplied, with the exception of the tail previously noted.
BTW, you drawing notes G102 up by the firewall and the front of the engine. G102 is at the bottom front of the engine block only.
Harwig, you can use a straight pin or sewing kit if the wife is prepared as well as you are. When we would get Mazda test vehicles from their training center, we would find sewing straight pins all over the harnesses.
Just saw your post.
Thanks for the comment on G102. That ground is identified in the diagram at the bottom of the page. Not sure why the note was there (used manual). I'll strike that out. EDIT - found the reason for the G102 edit in the drawing. That appears to be the G102 location on the gas engine trucks.
I understand on the ground plane, but what I was "trying to say" was that the ground wire from the blower motor controller was wired directly to G108 and the G108 contact needed to be in good shape. I'll edit out the earlier location that was wrong (and started the confusion).
I'm not sure on your vehicle as I have no way of telling, but that is the location Ford mounts the airbag control and accident data storage on some vehicles.
I'm not sure on your vehicle as I have no way of telling, but that is the location Ford mounts the airbag control and accident data storage on some vehicles.
Does Ford tap into the PCM wiring to the DLC (Data Link Connector) for the above modifications?
I have seen this done for oilfield trucks by the aftermarket and all of the DLC plugs were left disconnected and hanging.
