TIS2000 E666 Access to SPS Server Denied Error Solution

Hey guys, Gm-Tech2.com engineer & users share the working solution to GM Tech2 software TIS2000 error” E666: Access to Service Programming Server was denied”.

Tis2000 E666 Solution 01

Possible reasons and solutions:

  1. You need a New-Different “Safe” cable if you using USB —->RS232…..

Ensure the cable is a rs-232 and not a rs232c.


Look at the following rs232 adapter, it is high quality made, which is included in the package.

Tis2000 E666 Solution 02

2: To set COM port as COM1.

Note: Please do not use usb—rs232 (converter), it is useless.


  1. Normal TIS2000 software that comes with it requires an individual USB security dongle(most dongle in the kit is useless).Go figure. TIS2000 is COM yet the security is USB. This REALLY screws up things sometimes.If you do need the dongle and don’t have one, it will come with error E666.


Look at USB security dongle:

Tis2000 E666 Solution 03


For GM Opel tis2000: use D630 computer, you can insert the USB dongle to use or use the patch to crack.

For Saab TIS2000: usually use IBM T30, for other computer you may get error message, need to insert the USB dongle, can’t use the patch to crack.

How to crack TIS2000 for GM / Opel:


Attach some images below:

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