Tips to Buying Working GM TECH2 Scanner Clone

Has anyone bought/used one of Chinese Tech 2 scanner (clone)? If so is it any good? I ask this as I’m contemplating buying one. And there are soooo many versions of Tech2 clone; which one should i have?


Reply: Look the chart and tech2 review below. Maybe it can help you a lot.


  1. GM Tech 2 package difference:
Item NO. Package Weight 32MB Card CANDI TIS2000 USB Key Hot or not
SP23 Plastic Case 5.1kg Yes Yes Yes ★★★★★
SP23-1 Carton Box 3.5kg Yes Yes Yes ★★★★★
SP23-B Plastic Case 4.8kg Yes Yes Yes ★★★★★
SP23-B3 Carton Box 3.2kg Yes Yes Yes ★★★★★
SP23-C Plastic Case 8.9kg Yes Yes Yes ★★★
SP23-D Plastic Case 8.9kg Yes Yes Yes ★★★
SP23-D1 Plastic Case 8.9kg Yes Yes Yes Just add 1 vci module (sp23-v)
All of GM Tech2 are same functions, they are just from different factory.
SP23,SP23-1 the same, just the package case is different, one is with plastic case, one not.
SP23-B,SP23-B3 the same factory, the packing is different, one is with plastic case, one not.


  1. GM Tech 2 accessory:
Item NO. Name Function
SO22-B 32 MB CARD need more cards, buy so22-b to add
SP23-Z GM Tech2 Main Unit GM Tech 2 Multiplexer
SP23-V GM Tech2 VCI module VCI
SP23-J GM Tech2 Keypad Keypad
SP09-B GM Tech2 CANDI Candi with express shipping
SP09 GM TECH2 CANDI Candi with post shipping
SF63 Main Test Cable for GM TECH2 Main Test Cable
SO104 OBD2 16PIN Connector for GM TECH2 OBD2 Cable
SO01 TIS2000 USB Key for GM cars Work with Tech2 for GM cars’ programming function before 2007 year.
SO01-B TIS2000 USB Key for SAAB cars Work with Tech2 for SAAB before 2008 year cars’ programming.
SP235 ISUZU DC 24V Adapter Type II for GM Tech2 can do ISUZU 24V truck



So, it’s worth having a Tech 2 clone?


It’s a customer review. Read it and get the truth.


Received the GM Tech 2 clone today. Five days from China, not bad for free shipping. Checked it out and everything is working fine except the AC-to-12VDC power adapter (dead). No problem, because I can get one anywhere for $5. In short, that is a nice piece of equipment to have, very nice!

Aside from working beautifully with OBD2, the tech2 is the scanner for GM OBD1 to use. with the right software (plug in chips like nintendo cartridges) it’ll do some daewoo/suzuki, GM medium duty (meaning bigger than 3500 using non automotive OBD2 standards), and other in the GMdistant family tree too.

In addition to generic codes (P0000-P0999) It’ll do all the proprietary GM codes (P1xxx), actuators, and systems. you can also view fuel trims, emissions readyness (beyond a green LED for all OK) and It’ll talk to ALL the modules rather than just the ECM (and if you get into the $250+scanners, ABS) like BCM, SIR, entertainment, EVERYTHING on a GM. At school I used one with a 91+ cartridge on my 87 S10, so going back further is hit or miss but possible.

To adjust shift points and fuel consumption and Speedo, forget it.

The TECH2 can’t do any sort of modding/tuning, only upload GM flashes. At least with legitimate software. I’m sure someone has custom software to do it but there are easier ways nowadays.

Is it worth if you just want to read/clear codes on your own car once in a while, heck no. If you’re doing a lot of work on GMs or want to get a lot more in depth with your car, it’s worth the money.

No comment on China knockoff quality, I mean a working tech2, Chinese made or not.

See my GM tech2 scan tool. It’s working well.


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