Knowledge of Tech2 for GM


Before you decide to buy tech2, you have to read this post
Knowledge of Tech2 for GM

Before you decide to buy a tech2, you have to read this post.


Tech2 FAQs:
 
Q: May I use Tech2 to diagnose truck?
A: No, it only works with cars, I advise you to use Allscanner VCX HD heavy duty.
 
Q: Can Tech2 support coding?
A: Yes, it can.
 
Q: Is Tech2 available on my Cadillac year 1996?
A: No, it is not; it is only available on OPEL, GM, SAAB, and Isuzu.
 
Q: Is there Spanish for GM Tech2?
A: Yes, it has a Spanish version
 
Q: Can Tech2 support key coding and control unit programming for all OPEL and Isuzu?
A: TECH2 can’t support key coding, but can diagnose for most OPEL and Isuzu
 
 
How to disable GM, SAAB DRL with Tech2
 
Many people want to disable the day running light for fuel economy or other reasons, me included. Here I have figured out a simple way to reset it completely on my 1999 GM and my daughters 2004 SAAB with GM Tech2 scanner from my friend. This takes about 5 minutes from start to finish and will completely disable your automatic headlights so they will never come on. But all of the lights will function correctly. They just would not be automatic anymore.
 
Tools you will need:
GM Tech2 scanner for GM and SAAB
32MB PCMCIA Card for Tech2
A SAAB car (Here take my daughters 2004 SAAB for example)
 
How to:
Insert the 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
Exit
Go to Fog Lights Front
Change to Position 1 & 2 ROW (Rest of World) Program and Exit
 
This will give you:
Pos 0 > No Lights
Pos1 > Fogs and 5 Watt Headlamp / Parking Light
Pos3 > Low Beam, High Beam, Manual Control of Fogs
 

Difference between kinds of GM Tech2 ( SP23, SP23-B, SP23-B3, and SP23-D ) 
 
SP23-B and SP23-B3 are the hottest sales gm tech2
 
That GM TECH2 ( SP23, B, C, D ) their label is difference due to comes from difference factory
SP23-B3 is the SP23-B with carton box
SP23-B, SP23-B3, SP23-C including the SO22-C 32 MB card
SP23-D including SO22-B card
SP23 including SO22-D card

Difference Between Tech2 for GM and MDI for GM(item SP163)
Tech2 is the most cost-effective one, for it is with reasonable price and covering not only For GM vehicles, but also For SAAB, For OPEL, For SUZUKI, For ISUZU and as well as For Holden.
Besides, it is with authentic For GM software and support on-board diagnostics on all gm systems. If you want to use it to do For GM car programming, you should buy tis2000 software.
One disadvantage is that tech2 remains a basic or essential gm diagnostic tool for vehicles before 2010.
 
For GM MDI is used to serve vehicles with auxiliary CAN bus that cannot be served by tech2. Actually, this car diagnostic tool is working with vehicles after 2010 and covering newer models than that of Tech2.
Its highlights are with faster reprogramming (increased about 20-70%), serving exclusive new models, and more economical. This is a good investment for future vehicles models.