Scanmaster Problem

[Wayne A Bender]

It seems my scanmaster is not working, it just shows the 2.1 Display.
Could someone help.

 

[davelostmissing]

Broken ALDL signal somewhere between the Scanmaster PCB and the ECM :
scanmaster cable? ALDL connector connection? wire back to ECM?
continuity meter is your friend

 

[davelostmissing]

ECM -- A8
http://www.vortexbuicks-etc.com/ecmwiring.htm

 

[Wayne A Bender]

ECM -- A8
http://www.vortexbuicks-etc.com/ecmwiring.htm

Thank You Sir.