I have got a clone GM tech2 after hearing it is less than $300 and is able to do diagnosis and coding. Used it to reset day running light on my 2004 SAAB the other day. Worked as it should be. I saw some forum members are looking for a way to complete turn off the DRLs and would like to share a simple guide about this with the Tech2 scanner.
Tech2 Diagnostic Scanner with TIS2000 for GM, is a very good tester used to diagnose GM vehicles. The Vetronix Tech 2 contains Authentic GM software and provides support for on-board diagnostics on all GM systems 1992 thru 2011. TIS2000 supports till 2007 year GM car programming,supports GM/SAAB/OPEL/SUZUKI/ISUZU/HOLDEN.
Tools you will need:
Hook up Tech2 to the OBD2 port in your car. The scanner does not need software installation and can be used directly after connecting it to your car.
Insert 32MB card into Tech2
Run Tech2 diagnostic tool
Go to Diagnostic Mode
Select Diag >2003 >9-3 Sport Select Body>Exterior Lighting and Horn
Low beam adjustments
F0. Auto Low Beam also in Pos 0
Change setting to NO
Wait several seconds until the lights flicker and go out
Go to Fog Lights Front
Change to Position 1 & 2 ROW (Rest of World) Program and click Exit when finished.
After the programming, you will get:
Pos 0 > No Lights
Pos1 > Fogs and 5 Watt Headlamp / Parking Light
Pos3 > Low Beam, High Beam, Manual Control of Fogs
This process takes about 5 minutes. You can also turn the lights on following this process.