No, it's an EEPROM chip, meaning that the code is hard-coded into the chip. When they flash it with a Tech2 they're actually re-writing the coding on the EEPROM.

 

Ok, do you know where on the tech II do you get into these features? I have access to a tech II or MDI, but I don't know where to go or what exactly to do to reprogram the cluster...

 

Does anybody know what brand, pin size, style of eeprom chip they are? I may have somebody local who can program the chip

 

Hate to bring this thread up again, but like asked above, does anyone know the exact way to use the tech 2 to program the cluster for the trans temp? I have everything installed and access to a tech 2, but don't know where to get started. Thanks

 

Revising this thread again, does anyone know the procedure the dealer has to do to turn the trans temp gauge on?

 

You can't flash any module including the speedo without a subscription to GM's programing site that has all the calibration files.