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
disconnect the battery for 30 seconds
You need to hook the computer up to a scan tool to read the codes. That will tell you why the light is on.
unhook the positive on the battery for 5 min. This should reset your check engine light if it doesnt then you still have issues.
I've got a better question, why is this question in the Chevy venture forum ?
How do I reset the service engine light on a 2003 Chevy Trailblazer?
If the check engine light is blinking that means an engine cylinder misfire has been detected
I have a 2000 venture and the traction control light came on. Where do I look first, hubs. Wiring.
Disconnect the battery for approximately two minutes.
Maybe you should service the engine soon. :P
can you tell me why my 1999-2000 Chevy trailblazer light is on
Check
When service engine light is on on a 2003 Chevy Trailblazer, the problem could be a faulty thermostat, a circuit range performance problem, or any other problem.