Diagnostic Mode.. How??

We tried to download the ROM off 2 different 2005 3RB's on the weekend. No luck.
Latest EcuFlash 1.41 with a 1.3 and a 2.0 Tatrix Cable. No luck.
How do you get the GenIV's into test mode???
We connected the 2 green test connectors together (passenger footwell next to ecu).
turned key but the fans did click on off. No test mode.
Figured that was why ecuFlash couldn't DL the ROM.
RomRaider worked fine to log the ecu, so the cables were working fine.
Can anyone enlighten me??
Latest EcuFlash 1.41 with a 1.3 and a 2.0 Tatrix Cable. No luck.
How do you get the GenIV's into test mode???

We connected the 2 green test connectors together (passenger footwell next to ecu).
turned key but the fans did click on off. No test mode.
Figured that was why ecuFlash couldn't DL the ROM.
RomRaider worked fine to log the ecu, so the cables were working fine.
Can anyone enlighten me??