rubrhammer

iTrader: (5)

2011 Denali E38 has wht/blk in X1-14 and is twisted pair with X1-48 ppl/wht. I haven't found a pinouts or schematic to explain this. Help would be appreciated. So far the rest of the pinouts match the 07~09 pinouts on LT1swap.

SAPPER

iTrader: (10)

I'm on GM SI, and what I'm seeing is a Tahoe without HP2 RPO, the X1-14 is ppl/wht for CKP signal low (Y91)

Engine Control Module (ECM) X1 (except HP2)14 0.35 PU/WH 5024 CKP Signal Low (Y91)

rubrhammer

iTrader: (5)

These 2 wires go to a 16 pin latching style plug, not to the engine.

SAPPER

iTrader: (10)

Yes,, X1 is the ECM connector.

rubrhammer

iTrader: (5)

Tech Fanatic
what is the other connector? It has 16 cavities .

SAPPER

iTrader: (10)

Not sure what connector you're referring to. There's many X1 connector references to multiple components.
I am only looking at the ECM. But the ECM without HP2 has 2 connectors. One is a 80 way and the other 73 way.
The ECM with HP2 has 3 connectors. 80, 73 & 56 way.
So whatever connector you're looking at is not the ECM. Post up a pic and maybe we can figure this out. I have access to all the schematics.

rubrhammer

iTrader: (5)

Lol, I know it's not the ECM connector. The 2 wires are in the black X1 connector and go to the unknown 16 pin connector as a twisted pair from 14 and 48.

This is the unknown connector. E38 in background.

SAPPER

iTrader: (10)

Whoa. OK. that's not at the ECM. Now you have me really brainstorming what that goes to. Its hard to just guess and even harder looking for it in the schematics unless yo know exactly where its going. I think we have a 11 or 12 tahoe on the lot I'll try to look at to see where this goes. But gonna search through schematics as well. 0530 and can't sleep anyway.

branndonw

iTrader: (3)

Pin 14 PU/WH is CKP Signal Low (Y91) and Pin 48 WH/BK is CKP Signal High (Y91). These wires go to the audio amp and are used for noise cancellation.
The large connector you pictured is X109 (Engine harness to I/P harness connector).

rubrhammer

iTrader: (5)

Thanks for the time and effort. That's the closest I've seen.

rubrhammer

iTrader: (5)

The X109 is good news. Now I have a new search criteria. I'll check the cavity #s that they are in tomorrow.. Thank you.

branndonw

iTrader: (3)

You can see in the pic you posted that WH/BK is in A1 and the PU/WH is in A2.

rubrhammer

iTrader: (5)

Oh, that is actually a 24 pin connector.

rubrhammer

iTrader: (5)

So my X109 connector matches the schematic brandonw provided by they are reversed in the X1.

rodstored-72

I am not sure if this will help as my swap engine is a later 2013 out of a silverado, but I recently found that my X109 connector basically has the wires for the pedal and then the data wires for the obd port. i did find that if a "googled" GM x109 connector that I was able to find some diagrams related to my wires/colors and etc. not much help, but maybe some.... good luck!!

rubrhammer

iTrader: (5)

Thank you. That is the plan.