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Four-wheel drive not working?

Tiny
WILLIAM HARRISON2
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I don't let me look my stepson did the first time I had back surgery so it's a little hard to get around. But I'll check the fi Diagram looks correct because I have the double orange and then a single thin orange on the TCCM. So, I have to get under your look skip me a few.
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Sunday, November 13th, 2022 AT 9:35 AM
Tiny
AL514
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Okay, cool, since you're missing that orange power wire going to the motor lock, let's check this connector for any issues, corrosion, pin issues, etc. It's the main connector going from the engine compartment to the TCCM and motor. I've highlighted pin H which is that orange wire you powered up (the motor lock circuit). This should be a 16-pin connector, driver side rear of engine compartment, near where the harness runs through the firewall. Let's hope our issue is there.

Pin H comes from the atc fuse directly.
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Sunday, November 13th, 2022 AT 9:44 AM
Tiny
WILLIAM HARRISON2
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Okay, check in a few girl cooked lunch so I got to go eat, lol.
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Sunday, November 13th, 2022 AT 10:06 AM
Tiny
AL514
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Okay, no worries, take your time.
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Sunday, November 13th, 2022 AT 10:07 AM
Tiny
WILLIAM HARRISON2
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I can't find 16 pin, I found a 8.
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Sunday, November 13th, 2022 AT 10:52 AM
Tiny
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Okay, this is the other option for the C108 connector, but this was supposed to be for the other design.
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Sunday, November 13th, 2022 AT 10:57 AM
Tiny
WILLIAM HARRISON2
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Okay. So, which one do I check?
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Sunday, November 13th, 2022 AT 10:59 AM
Tiny
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Do the colors match? In this setup I don't see an orange wire running to the motor though, this is all that's in that connector if it's only the 7 pin. There has to be another connector then.
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Sunday, November 13th, 2022 AT 11:02 AM
Tiny
WILLIAM HARRISON2
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Yes, same wires on transfer case but not orange like TCCM.
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Sunday, November 13th, 2022 AT 11:04 AM
Tiny
WILLIAM HARRISON2
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Same in pic you sent.
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Sunday, November 13th, 2022 AT 11:05 AM
Tiny
AL514
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So, you don't have an orange wire running to the transfer case motor? Or are there 2 connectors on the motor? Where exactly are you missing power? Only the TCCM?
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Sunday, November 13th, 2022 AT 11:07 AM
Tiny
WILLIAM HARRISON2
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No orange 7 pin connectors.
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Sunday, November 13th, 2022 AT 11:08 AM
Tiny
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That connector is only for the TCCM motor controls A and B, and the TCCM Encoder channels, it's not the power feed for the TCCM. Thats why there's no orange wires, are you missing power at the TCCM? Is that what you're trying to check right now?
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Sunday, November 13th, 2022 AT 11:16 AM
Tiny
WILLIAM HARRISON2
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I have power TCCM but nothing from orange ones, like I said if I hook a positive jumper to the orange ones hit 4hi and 4 low the transfer case clicks like it switching.
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Sunday, November 13th, 2022 AT 11:19 AM
Tiny
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Well, there's multiple orange wires, I think that's where we're getting confused about, if that last aftermarket diagram I gave you is correct, the TCCM has 2 connectors and only 1 orange wire which is labelled B+. Is this correct?
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Sunday, November 13th, 2022 AT 11:27 AM
Tiny
WILLIAM HARRISON2
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This is the TCCM that I bought to reach the other one just one big plug.
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Sunday, November 13th, 2022 AT 11:30 AM
Tiny
WILLIAM HARRISON2
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This is my wires to TCCM.
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Sunday, November 13th, 2022 AT 11:33 AM
Tiny
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Okay. So, you have the 2-speed selectable transfer case setup. Those 2 bottom orange wires come from the atc fuse, they both branch off that one fuse. And on the OEM diagrams there are no connectors between the under-hood fuse panel and the TCCM. Marked in green is where the harness runs through the firewall. So, if one of the lower orange wires is missing power, then checking the output at the fuse panel E5 and D5 connector C1 needs to be checked,

Back probing this connector while plugged in is probably the best idea, in case there is a voltage drop issue in the connector. This under-hood fuse panels are prone to corrosion on the underside of the boxes.
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Sunday, November 13th, 2022 AT 11:49 AM
Tiny
WILLIAM HARRISON2
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Just want to tell you thank you so much for your help. I got it fixed it was a wire that was broke under body. I followed all them and found it. I appreciate all your patience and willingness to help, you're awesome.
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Sunday, November 13th, 2022 AT 2:12 PM
Tiny
AL514
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Awesome, so glad you found it, sorry for the confusion there with the different diagrams, a lot of different designs out there. Have a good evening.
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Sunday, November 13th, 2022 AT 3:03 PM

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