Jochen

Hi Folks,

i finally bought a GM Tech2. All functions seems to be OK, no problems on the self tests etc etc. Software on the Tech2 is 30.001

I installed TIS/SPS Software Version 27.xxx on two different PCīs. On both i cannot connect the Tech2 to the PC. I used the RS232 cable with the DB9 Adapter to a seriel COM Port at the PC.

While trying to use the "Tech2 view" option on the TIS Software, i get the following message: "E625 unable to communicate with handheld device, check your connection". I did check, and all looks fine, tried a different COM port, same problem. The Tech2 seems to realize he is connected to a PC cause he displays a "Download" Message upon startup. This message doesnt show up if not connected to a PC.

I tried all COM port settings in the I/O Management, tried the "Tech2"--> Test feature and got a "E2482 Driver Testfailed" Error message...

I have no idea how what to check next, or what settings might be wrong...
I have two available COM ports, both wit settings:

- 9600 baud (i tried as well different values here!)
- 8 Databits
- no parity
- 1 Stopbit

Do i have to change any of those settings?
Is there a chance the Tech2 is defect?
Would a Seriell to USB Adapter would do the job?

I really hope somebody can jump in here and give me a helping hand!!!

Best regards!


Jochen

Jochen

Good news!

I had OS XP home, but i needed XP pro which i didnt knew. A friend told me to upgrade to XP pro which i did and all is working fine now.



Just wanted to let you guys know in case anybody is about to experience the same problem.

Take care!

Jochen

Jochen

Hi there...

Today i did a complete TIS/SPS programmingt procedure on a new BCM on my 07 Escalde (should be a similar CAN System like the 07 C6 has...). The BCM was damaged by a short. I had varioues problems with lighting system, turn signals, hood open switch, e-brake indicator etc etc. After replacing the BCM and working through the programming process, all is fine again.

BUT, it seems to be that my Tech2 has another issue:

The GM Service Manual says to "relearn the restraints ID" after programming the BCM. I tried that using the Diagnostic function of the Tech2, but the Tech2 crashes everytime i try to establish communication with the car. I tried any other "Diagnostic Function" of the Tech2 - nothing worked! I tried on the 07 Escalade with the CANdI module, and i tried without the CANdI on my 1997 Corvette. Everytime i try to establish com. the Tech2 chrashes with a Message on the Screen. It says: "SCRNMNGR.C 4426 -1". When trying the Diagnostic Mode on the PCM the same thing happend. Then showing error message: "DBDDNAV.C 1630 -1211". In any case, the Tech2 doesnt take anymore inputs from the Keypad and i have to switch it OFF and restart.

Any Idea what that could be? I know it is definitally a Tech2 issue, not a car related problem.

Anyway... good to have the car work again, i just need to get the restraints ID relearned again (right now i just get an "service airbag system" message)...

Take care, and thanks again for your help!

Jochen

78GEN3

Digging up old thread looking for advice.
I have a clone Tech2 that will not connect to my laptop to use SPS in TIS2000. Error E625 Unable to communicate with handheld device.

I have XP prop already, so that shouldn't be my problem. I read somewhere to check for a MAX202 chip instead of MAX232. Opened it up and there is a MAX232 chip installed.

The Tech 2 functions properly by itself. I have used it to reprogram tire sizes in a few trucks and to delete the F45 from my 97.

Anyone have any insight?

Jochen

In my case the problem was that the seller sold me a chinese clone. I did not get it to work properly on the scanning functions. Send trhe unit back and bought aused one from a GM dealer. All works fine since then.... 8 years ago till today

78GEN3

I think I have narrowed it down to the RS232 chip. The unit fails the RS232 loopback test. Everything else works fine. I may order a chip and install it or upgrde to a MDI at least for the SPS functions.