A scan tool capable of performaing actuation test is required and there are many different suppliers which you would have no problem locating if you google.
For wirings you might need more than the scan tool, a DVOM is more practical.
Problem can be any of the following only.
PCM
Internal Mode Switch (located within transmission)
Transaxle wire harness
Friday, October 19th, 2012 AT 5:07 PM