Category Archives: Professional Diagnostic Tools

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GM Tech 2 CANdi Module User Manual for Newbies

CANdi adapter user manual for  GM Tech 2 clone scanner:

What’s the candi module?

What is the real purpose of the candi module?

What is the CANdi module used for?

What’s the physical interface and LED?

“NO CANDI Communication Established”?

What’s the candi module?

An industry change in protocol from OBD II to Controller Area Network (CAN) is ongoing. In order to perform diagnostics on a vehicle that uses the CAN interface, you will need the Tech 2 and a CAN diagnostic interface module. The CANdi module connects between the Tech 2’s diagnostic link cable and the OBD adapter.

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The Controller Area Network Diagnostic Interface (CANdi) is an in-cable module that works with the existing Tech 2 components including the VCI, cables and adapters. Installed, the CANdi module is fully backward compatible with current tester functionality. The module powers up in a way that makes it transparent to the user.

That is, unless the Tech 2 enables features specific to the CANdi module. This allows the existing Tech 2 software to be used with no changes, whether or not the CANdi module is installed.

What is the real purpose of the candi module?

The CANDI module reads the CAN Network on cars that have it. Corvettes 2005 and newer use the CAN Network. Still use a OBDII connector but the Candi module is needed to read the data on the CAN Network.

What is the CANdi module used for?

The primary function of the CANdi module is to add CAN capability to the Tech 2 scan tool.

The CANdi module:

– support simultaneous communications on three CAN buses

– provides high speed UART communications with Tech 2

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What’s the physical interface and LED?

CANdi adapter connects the Tech II by way of the existing Data Link Connector (DLC) Burndy Connector. The vehicle side connection remains unchanged using the existing adapter to interface between the Burndy connector and the SAE J1962 connector. When functioning properly, CANdi’s LED flashes. In the vent of a problem,the LED will be constantly illuminated.

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How will you do with “NO CANDI Communication Established”?

How-to’s of CANDI module communication errors:

“CANdi module was not detected for Tech2”

Or

“NO CANDI Communication Established”

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First, please make sure you plugged the candi adapter in to the car and the tech 2 before powering up

Then, disconnect the connector leaving the candi adapter going to the OBD port. Plug it back in and make sure its real snug, then plug it into the obd port. I need to do this every now and then with my clone one. Usually it works after. Suspect the pins arent making the best contact.

Tech support from professionals:

1.  With the car ignition off, connect the GM Tech2 and CANdi module (which is now one long cable).
2.  Power up the Tech
3.   You’ll get 12V from the DLC (now it takes me a half hour to find the “DLC means” Data Link Connector “and is what we also call the OBD2 connector, so be prepared to be stumped by TLA’s (Three Letter Acronyms)
4.  At the main menu press F3-tool options
5.  At the tool options screen select F9, CANdi Diagnostics
6.  There are two tests on the next screen, run them both. The CANDI should talk to your 2004+ car
7.  Either turn the ignition key of the car, or start it (for a C6 there is not an “on”).
8.   Press the EXIT button until the Tech 2 goes back to the main menu.
9.  Select F0, Diagnostics.
10.  Make sure you want to look at the module. You may be choosing body style; You may need the body code (sometimes the third character in the VIN) You may also be asked about certain options, like ZL6. They are on a tag in the glovebox.
11.  After that you will be able to play with the Tech2 clone.

IMPORTANT: Sometimes, it’s just problem with candi, as when using on other cars without candi, it’s just perfect. So you should have a good candi such as . It’s just better, but still needs to connect a few times. So I you can buy another card 148. If not totally solved, rewrite the card to 143 and 136. Both work fine. That is, 148 is no good for candi. Could be corrupted software, or the card problem. These cards coming together with Tech 2 are not good sometimes. You’d better but china knock-offs from a man of his word to trust in. Here, obd2tool.com is one of them you can go with.


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Tip and Guide Needed before Buying Tech 2 for SPS Programming

 

GM-Tech2-1

Hi all,
Here are all experience of Chinese GM Tech 2 interface for SPS programming and hardware key issues. You will get useful tips/guide. Have fun.

Confirm your card with a brand:
Before buying, you should tell your seller: Will you choose GM or SAAB or Isuzu or Opel card?
Because every card to one brand cars. If you want to do more brands, they will ask your pay extra fee for other cards.
Hope it be useful.

Can do programming:
Chinese clone Tech II don’t have hardware key but it can do programming

TIS2000 dongle & sw make it:
The TIS2000 Dongle( the newest one is USB flash type ) and the TIS 2000 software could do the SPS programming . usually the chinese gm tech 2 kit not included it . you should point it speartly that you need it very important . may be need more $100.0 for the dongle and software

Work for cars 2008 or older:
You should use the TIS200 dongle and software for reprogramming SPS and access Immo SYSTEM but just work for 2008 year or older. for new cars, you should use the MDI module programming online

MDI instead for new cars:
buy GM MDI instead as it will run tech2win and do sps flashing and also do latest model cars that tech2 won’t do

Must have TIS2000:
the Chinese GM Tech-2 can’t program, if you want to do programming you need to buy the TIS2000 software. It has the hardware key.

Works well for one year:
if you consider to buy one, I can suggest you buy it using the site https://www.obd2tool.com/goods-1568-GM+Tech2+GM+Scanner+-CANdi++TIS+(Works+for+GMSAABOPELSUZUKIISUZUHolden).html , I buy it one years ago, and it works well now, and they can supply us the technical support. I use it to program with the TIS2000 software….

Works fine for 2 years:
I bought a Chinese OPEL TECH2 interface off obd2tool.com, from two years now and it stills working fine. If you use the right software you wont found any inconvenience …
There’s no need of drivers and Best obd2 scanner tech II is an Auto exec file, so it doesn’t need to install.
I Hope it’s been helpful 4U

Both 2 units work fine:
I bought 2 units from different suppliers, both work fine, until I bought the original tech2 card from one of this suppliers It does snapshots, and programming but one of the units wont accept the card, it seems like one of the edges close to the pin connector side , is been damage well one of the problems, the main problem I think is after I use explorer manager to upload the file to the tech2 card on my laptop I did it many times with no problems it work just fine, but after that day I couldn’t it goes up to 25% and gives an error related to power , couldn’t find a card of 12v or something like that, and the other card finish fine but when when I plug to the car diagnostic scanner tech2 it wont recognize the card it displays downloading mode and that it, but a clone card work fine so I use this to diagnose, ifany body knows how to do a low level format or some fix like that in order to be able to use the card again please help.
Until today I’m using tech2 clone from china it does SPS and all, still working fine I have a software emulator for dongle it works great on American NAO, Brasil, Isuzu, I do SPS on all this vehicles with no problems. just make sure you get a card for SPS, snapshots and it will work.