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I Pulled radio and radio amp fuse, then bcm fuse...
I keep 1 door open. ... In Drive, in Neutral, impossible to read !

I dont know how to dsable Retained Accessory Power (RAP) !

Same problem, with H3, I remov Radio and onstar fuses...
and doest work...

Hi all,

I have problem to read hummer H2. I cant read ECM / there is fail.

After 20%, the dashboard switch off.

How can i fix it ?

best regards.

and now ? it is ok ?

Hi all!
My name is JEC, from Bordeaux ( France )
I used Hp tuners for Chevy tahoe, and dodge... Hp tuners is perfect for change stoich afr & cold start !

thanks.