Hi All

Changed out a friends battery in her '03 envoy, will not start now, radio will not work doors do not open...ect But the horn and all the dash lights come on. I think this has to do with the anti theft system???

I did a search and came up with the Neslon tune start up procedure......

http://www.nelsonperformance.com/faqs/passkey.htm

When I turn the key to the on position, all lights on the dash go out except the "engine needs service"

Any help out there???
Thanks
Roger

 

Come on guys........I know its ez...........turn the dimmer switch to the left..........swing a rubber chicken under a full moon.

 

I got one but haven't changed the batt. out yet so I'm affraid I'm no help...Sorry...Zed

 

Well, I disconnected the negitive cable overnite, reconnected it this morning and the Jimmy started right up........hope this might help out other chevy inept people in the future.


Roger

 

i threw a redtop in my 05 silvey the other day . i just used my buddys jump box with this cable that plugs into the cig lighter . everything was fine . but my temp guage wouldnt work and the fans wouldnt kick on for some reason . so i threw the a/c on just to make sure the fans would keep the motor cold . went and moved the ground wire , tightened it up and its been fine since .