You can probably use a regular OBD II scan tool to retrieve P-codes and try to erase..but you migth not have too much success..were now using WDS for 05+ which is now part of another program called IDS. The IDS is actually a Panasonic ToughBook with the WDS software attached to a VCM datacable to the OBD II port.
Like I said prior, you can try and erase the P-codes..but you might have codes stored in the transmission depending on the fault, which in return will possibly cause the P-code to return