Question about GMC Sierra 1500
I need a diagram that describes the front differential actuator connecotr pins and the Transfer case control module(tccm) pin out
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Posted on Jan 02, 2017
SOURCE: electrical diagram
Might this help?
here and here.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
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Posted on Aug 16, 2008
SOURCE: Wiring diagram
If you are going from a 4 pin on your trailer to the 7 pin on the truck. You need to go to parts store or a department store (ex Wal Mart) and look in trailer section and find the adapter. Thats what I did. Also Remember if your lights don't work on trailer, check the plug to make sure its tight or check the fuse under your drivers side rear seat for that fuse box.
Posted on May 17, 2009
follow the three links for complete wiring diagram of lcm
Posted on Jun 30, 2009
check all wire conections also replace the actuator on the front axle but check for power there first if you have power replace that switch as well .
Posted on Aug 27, 2009
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Dec 24, 2017 | Cars & Trucks
Ground Circuit for ground
Diagnostic enable circuit for an open or high resistance
Transfer case shift control switch connector
If more than one code is stored, the first code will blink, followed by a 3 second pause and then the second code will blink.
This sequence will continue until PIN 13 on the DLC is no longer grounded.
If the TCCM will not communicate the presence or absence of DTCs, test the above circuits in Self-Test Step 2. If the circuits are complete, then replace the TCCM. Refer to Transfer Case Shift Control Module Replacement .
Let me know if you have any codes , I have code definitions an procedures.
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