SEMEURBAK

Here is a customer solution of GM tech 2 error E666. When trying to access to SPS, it keeps error E666: Access to Service Programming Server was denied.

Possible solution: (try on your own risk)

You need a New-Different "Safe" cable if you using USB ---->RS232.....

make sure the cable is a rs-232 and not a rs232c

(all tech2 packages all at diyobd2 includes this HQ rs232 adapter)

To set COM port.
---> under CONFIGURATION>I/O MANAGEMENT>TECH2>PROPERTIES.

NOTE:

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 dont have one, it will come with error E666

Tech support from http://www.diyobd2.fr/

Original:(solved) GM tech 2 error E666 service programming system denied