cant write file to VCM

[yousuf]

i got this message when i try to write file to VCM:
"The interface was found but no vehicle power was detected.
Verify cable is connected and key is in the RUN position,
Also make sure the diagnostics port has power and its fuse is good"

i done all this but it show again!!
what should i do?

[SHtune]

is this one a LS1?

[yousuf]

Yes

[SultanHassanMasTuning]

make sure your OBD has connectivity, and a good battery.

sometimes the terminal is simply dirty and you need to clean it, i see it when i tune many lumina LS1

good luck

[yousuf]

Thanks i will do it

[Montecarlodrag]

Check cigarette lighter fuse, it also powers OBD-II port.
If that fuse is blown, there won't be power to OBD port and Hptuners will refuse to link