FS: USB ALDL Interface

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Joined: Tue Jul 03, 2018 10:32 pm

Re: FS: USB ALDL Interface

Postby LT1truck » Sat Jul 07, 2018 11:48 pm

thanks, I have the 16176424 ECM - is the 12 pin port the wrong one? Apologies for asking stupid questions but I trying to get my head around exactly what I have as it appears the ECM has been retro fitted to my 1989 LT1 powered C1500. I am keen on the NVRAM upgrade but I am not sure if it will work as it appears the ALDL interface I require isn't compatible. Any further guidance is appreciated.

cheers

Posts: 1
Joined: Sun Apr 21, 2019 8:53 pm

Re: FS: USB ALDL Interface

Postby Vidoco » Sun Apr 21, 2019 9:06 pm

Hello everybody

I have 2 corvettes

Corvette C5 5.7L LT1 1997 Manual ( i think this might be an LT1 )
Corvette C5 5.7L LS1 1998 Automatic

can this aldl cable read and write bot of my cars?


Thanks in advance

Leon

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Posts: 219
Joined: Sun Jan 25, 2015 4:21 pm
Location: Sydney

Re: FS: USB ALDL Interface

Postby j_ds_au » Tue Apr 23, 2019 1:07 am

LT1truck wrote:thanks, I have the 16176424 ECM - is the 12 pin port the wrong one? Apologies for asking stupid questions but I trying to get my head around exactly what I have as it appears the ECM has been retro fitted to my 1989 LT1 powered C1500. I am keen on the NVRAM upgrade but I am not sure if it will work as it appears the ALDL interface I require isn't compatible. Any further guidance is appreciated.

cheers

The '424 PCM has 8192 baud ALDL, but may be wired to a 12 pin connector in US vehicles vs. 16 pin in AU vehicles. With two connectors, an adaptor could be made. Gnd = pin 5 = pin A, Data = pin 9 = pin M.

Joe.

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