Some GM Tech 2 repair, how to reprogram any module using GM Tech 2

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Some GM Tech 2 repair, how to reprogram any module using GM Tech 2


Today I will briefly try to tell you about some possible problems and programming.
And so, if your Tech 2 worked fine, but then something went wrong, and there are some mistakes, then the first thing we need to do is to spend again testing of the device.
If you have the DLC 1, TPU, CCD, DLC2 – FAIL. Then just break the device and carefully solder all the chips that we see on the motherboard. If errors in a block VCI then take it, parse and also all propylaen. Only after all these manipulations, if you could not fix the error, then think about buying a new motherboard from


Now let’s talk about programming.
Here the opinions diverge. Someone said that you can perepisyvat using cheap Chinese card, someone says that it is necessary to use only original, in which there is an adapter for the write protection. If a cheap card flew off after the firmware, then try it again to overwrite soft but before writing be erased from it all.
Also there is a method of firmware as “cross-cutting”. In short, it means that the Tech 2 Scan Toolare connected to the machine and PC. And the management process itself goes through GlobalTIS.
May need the driver for PC saw the Tech 2, as a rule driver J2534.
All good and good luck in Your endeavors.

PS: In some laptops havent DB9 connector. Here you can just buy an adapter db9 to usb.

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GM Tech2 Voltage regulator

Hello everyone, sometimes ask me what and where to find the right voltage for GM Tech2 Diagnostic Tool. MORNSUN DIP VRB1205LD-15W . For myself I look for them on ebay or aliexpress. So here is a list of counterparts, I have not tested:
Yuan Dean Scientific 67D-12S05RNL
Aimtec AM15E-1205SZ
Aimtec AM15E-1205SIZ
Intronics W15C-12S5
Motien V7E-1205S15
Motien V7-1205S15
Minmax MKW2522
Minmax MKW2529
Murata (C & D) UWR-5/3000-D12A-C
Traco TEN 15-1211
Traco TEL 15-1211
Recom RP15-1205SF


Here is the native voltage regulator, which was after buying Tech 2 Scanner


I am often asked how you can work with Tech 2 before you until you have replaced the voltage regulator. Important! Replace the voltage regulator must! And those who have not done, and wants to have his device has not been restarted every time there is one trick. Here is the diagram of the Pinout of the connector Obd ii scan tool, what we need is to temporarily disable 16 pin. And the tech 2 power from AC power through the power supply which was on the set, or use a second battery to make it through ticks that are in the kit.