06-40-013 This is a trouble shooting nuttetin that may have related issues with your symptoms.
This involves looking into the sport mode switch. I dont think you are in that serious for a computer or tranny.
SubjectAUTOMATIC TRANSAXLE "SHIFTRONIC" DIAGNOSIS
This TSB supersedes bulletin 02-40-013-1 to add new models.
If you are servicing a vehicle equipped with a "SHIFTRONIC(TM)" automatic transaxle that has the following symptoms, refer to the repair procedure shown below:
Attach a Hi-Scan Pro or GDS and select:
With ignition key "ON" and engine off, select "Sports Mode Select Switch."
Check the operation of the select switch when the shift lever is moved from "D" to "Sports Mode" and back.
Shift the Sports Mode lever to the upshift and downshift positions and check the operation of the switches:
SWITCH BOX REPLACEMENT (2001~SANTA FE & XG, 2002 SONATA & 2003 TIBURON):
If the switches do not operate as shown above, proceed as follows:
GEAR SHIFT LEVER REPLACEMENT (2006 SONATA & AZERA, 2007 SANTA FE):