Looking for 2012 5.3 liter E38 Connector Pin Out

I'm needing help with finding the E38 connector pin out for a 2012 GM 5.3 liter Pickup.

Thanks

dave w

I can offer you 2009 which SHOULD be the same, but thats as far as my information currently goes. Pm me an email address if you want it and Ill send it to you in pdf.

I have them. Trying to load them up.

try these

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Originally Posted by S10LS

try these

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That looks great for the X2 (Gray) connector!

Hope you can post the X1 (Black) connector?

dave w

Trying. I cant stand Alldata sometimes. And I am not sure about how accurate alldata is.

This should be it.

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Originally Posted by S10LS

This should be it.

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Thank you!:thumbsup:

I was able to get some Alldata schematics at my local library, but I could not find the connector pin outs.

dave w

Quote:

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Originally Posted by dave w

Thank you!:thumbsup:

I was able to get some Alldata schematics at my local library, but I could not find the connector pin outs.

dave w

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The attached .pdf has the Alldata schematics I printed from my local library.

dave w

You get the info you needed Dave? Have ShopKey/Mitchell here if you still need.

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Originally Posted by brian617

You get the info you needed Dave? Have ShopKey/Mitchell here if you still need.

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I think I'm doing OK. This weekend is when I get my hands dirty with the actual wiring. So far the wire colors and pin outs match the harness. I seem to favor the Mitchell Manual diagrams (before 2002 anyway), so it would awesome if you could post the Michell ECM diagram.

I'll post up more schematics I got today that should help someone wanting to set up a 2012 harness for stand alone.

dave w

More schematics.

dave w

Dave, I've tried to figure out a way to post those diagrams but it seems if ShopKey is protected from duplicating, or I'm just too stupid to figure it out lol. Sorry.

I'm adding the data Link Schematics. See attached.

I have two questions:

What is the Data Link Resistor?

If a module, like the Body Control Module, is removed from the vehicle ... Is a Data Link Resistor still needed?

dave w

Not to worry ... in a Hot Rod / custom application the E38 provides this to the CAN Bus network.

As an example, you can bench read an E38 with tuning software, without issue.

Try connecting to just a TCM (T42 / T43 / T76) without an ECM on the CAN Bus network - doesn't seem to work, does it ?

Now, bridge the CAN Bus lines with a 120 ohm resistor, and try reading the TCM on its own again - son of gun, the tuning software will now read the TCM.

The CAN Bus communications protocol requires 120 ohms resistance (a.k.a. - Data Link Resistor).