Wiring Schematic for MFD

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

Joined
Sep 1, 2004
Threads
489
Messages
3,382
Location
So. Austin, tx
Hello All,

Been trying to trace the issues with the MFD on my 04... I bought the truck from my brother and he says that a place called Medic Board had the ECU checked out and it was good. So now, I am checking out the harness(es) by using the online FSM to troubleshoot, trying to figure out color codes for the wiring harness coming into the MFD, specifically the on in the picture. The two larger connectors that plug into the MFD do not match whats on the picture. Any help is appreciated. Thanks, ML

FSM.webp
 
Thanks Dom,

The usual issues with an 04. No AC, no MFD controls work.
 
do you have 26, and 28 pin connectors, and a third smaller one for dvd changer? I believe that is a 5 or 6 pin connector. If that's what you want I have those pics from manual or wiring book.

edit ..look at the EWD in the 2004 online FSM, it's pages 337-343
 
Last edited:
Is there a certain VIN range of '04s with this issue?
 
do you have 26, and 28 pin connectors, and a third smaller one for dvd changer? I believe that is a 5 or 6 pin connector. If that's what you want I have those pics from manual or wiring book.

edit ..look at the EWD in the 2004 online FSM, it's pages 337-343

Jerry B,

Thank you! This should help me look into the wiring. Not sure on the 26 & 28 pin connectors. i will look at it tomorrow.
 

Users who are viewing this thread

Back
Top Bottom