I assume you are getting code 6 from the led/sw of the DM under the hood .
If so, what you want to do now is get the codes from pins 6 and 7 of your 38 pin connector socket. This will require a simple homemade led tool [ archives] .
This will get you more ASR specific info/codes . Post those codes and I can give you the chart specifics.
The tool will use pin 1 for ground, pin 3 for 12v power and 6/7 for code initiation/retrieve.
[ or, you can use the battery for gnd and power, with the code lead going to pins 6 and then 7.]