The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Is my ALDL 160 baud or 8192, connector looks like this

OldSuperSport · 04-21-2005, 12:23 PM

My connector pins are not like the diagram. I tried to hook to A and M but get no data. What I dont know is this 160 or 8192 baud, because WinALDL wont do 8192, and that may be why I cant see data. Tonight I'm going to break out the old oscilloscope and look for a pulse train on all the pins and determine the frequency. My DMM told me the frequentcy was 1200 hz but I think the DMM was confused by the waveform or something.

The truck has the towing package, dual radiators, oil cooler, 4.11 rearend, I dont know the transmission model, or how to find out what it is. For the software you need to know what ECM you have and thats related to engine "vin letter"??? and transmission 4L60E or 4L80E. What does Vin K or Vin P, Vin J refer to?

Thanks for the reply

04-21-2005, 12:23 PM	#3
OldSuperSport Registered User Join Date: Apr 2005 Location: Akron, Ohio Posts: 13	My connector pins are not like the diagram. I tried to hook to A and M but get no data. What I dont know is this 160 or 8192 baud, because WinALDL wont do 8192, and that may be why I cant see data. Tonight I'm going to break out the old oscilloscope and look for a pulse train on all the pins and determine the frequency. My DMM told me the frequentcy was 1200 hz but I think the DMM was confused by the waveform or something. The truck has the towing package, dual radiators, oil cooler, 4.11 rearend, I dont know the transmission model, or how to find out what it is. For the software you need to know what ECM you have and thats related to engine "vin letter"??? and transmission 4L60E or 4L80E. What does Vin K or Vin P, Vin J refer to? Thanks for the reply