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Old 05-12-2019, 06:58 PM   #1
weedoublewide
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obd2 connector wiring

Hello everyone,

I can't seem to find where the obd2 port wires go to. I know the port connector is normally located under the dash, but where does it go to from there to retrieve the data from the PCM?

05 ls 6.0 from chevy Silverado 2500hd

Thank you,

double
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Old 05-14-2019, 05:45 PM   #2
First c10
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Re: obd2 connector wiring

Pin 58 - Dk Green - Serial Data - This is the Class 2 Serial Data wire that goes to the diagnostic port (OBD2) pin 2.

the link is to the PINOUTS for your year.
http://www.lt1swap.com/2004vortec_pcm.htm
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Old 06-09-2019, 12:33 PM   #3
weedoublewide
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Re: obd2 connector wiring

Quote:
Originally Posted by First c10 View Post
Pin 58 - Dk Green - Serial Data - This is the Class 2 Serial Data wire that goes to the diagnostic port (OBD2) pin 2.

the link is to the PINOUTS for your year.
http://www.lt1swap.com/2004vortec_pcm.htm
I saw this and forgot to respond to it..Thank you i appreciate it.

I got it hooked up to test out the hp turner software and for 3 hours I couldn't connect to the PCM. I was so heated and aggravated. Then I had a Macgyver moment as I was holding the I.V PCM wire. I touched the orange wires and all of a sudden it lived.

One. Fricking. Wire.
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