Dakota Digital VHX gauge control through BIM-01-2 with GMPP harness. How?

[samckitt]

I recently purchased a Dakota Digital BIM-01-2 module to drive the VHX gauges from the LS ECM vs running all new sensors & wires for it. However the GMPP ALDL connector doesn't have the proper terminals available for the DD module to get the signal, instead these wires are in a separate connector in the harness.

So did you add these terminals to the ALDL connector, or connect the BIM module directly to this other connector in the harness to get the BUS signal?

[dhutton]

I connected it to the OBDII port after adding an OBDII splitter adaptor. Easy and worked well.

Don

[samckitt]

That's what I was going to do, but GM didn't put the two terminals needed to feed the BIM module in the ALDL connector. But they are in the "bulkhead connector". So I either have to wire them to the ALDL connector. Or wire it direct to the BIM module with a RS232 connector.

[dhutton]

Originally Posted by samckitt

That's what I was going to do, but GM didn't put the two terminals needed to feed the BIM module in the ALDL connector. But they are in the "bulkhead connector". So I either have to wire them to the ALDL connector. Or wire it direct to the BIM module with a RS232 connector.

I just connected it and it worked. No mods needed. GM connect and cruise LS3. What two terminals are you referring to? The BIM just reads the OBDII port as far as I know.

Sorry if I am not following you.

Don

[samckitt]

The BIM module gets its signal from terminals 6 & 10.





My ALDL has 4,5,6,15 & 16 filled, no others.





I'm going to have to get the signal from A & G in the bulkhead connector.

[dhutton]

Mine just read the serial data on pin 2. No other signals needed. My bulkhead was connected to my trans controller if I remember right.

http://www.dakotadigital.com/pdf/650500A_BIM-01-2.pdf

Don

[samckitt]

Just going by what DD Tech guy has told me, regardless, I don't have it either.

[ironworks]

Everyone we have done correctly necessary right to OBD port and is done. Easy

[samckitt]

Originally Posted by ironworks

Everyone we have done correctly necessary right to OBD port and is done. Easy

Then I guess I have a b@sturd GMPP harness. The wires needed for the BIM module are NOT in the ALDL connector, repeat NOT in it. I sent a pic of it to DD & he told me they are not there. So I have to run new wires for it.

My ALDL connector:

[Efi69Cam]

It looks like you have 6 and 14 populated, that would be can + on 6 and can - on 14.

The GM cars that harness is based off of use the can bus for gauges. I doubt the IPC information is on the serial bus that would be connected to pin 2 on an older OBD2 car.