The service engine soon light means there is regular scheduled maintenance due on the vehicle. Oil change, tire rotation, transmission service, etc. All this is spelled out in your owners manual. This is different than the Check Engine light which means the ECU has detected a problem with the emissions system. You have to manually reset the light according to the instructions in you owners manual. Disconnecting the battery will not reset the light.
Disconnect your battery. Yup..It's that simple.
You disconnect your battery and then reconnect your battery again.
disconnect the battery for 30 seconds
remove the positive battery cable for about 20 min.
Chevrolet Venture was created in 1997.
Disconnect the battery for approximately two minutes.
Dont know. Just want to say that. 
what is the firing order for a 1999 Chevrolet venture
It should, it is the same generation of Venture van.
You would need to disconnect the battery, take off the speedometer cluster bezel and also the trim on the steering column. That will enable you to gain access to the ignition switch. I've included a great video that will walk you through this entire process.
Disconnect the battery for about 10 minutes to a half an hour that should clear it if not get a obd 2 and plug it in there should be a connector under the drivers side dash plug it in it will tell ya what to do
I need a module for the a chevrolet venture 2003 the the driver side window wont go down