Hi,
This could be one of hundreds of issues with the engine or emission system.
You will need to connect a scan tool to your van so that it will read any stored codes in the engine computer. That will tell you what the issue is and then it can be addressed.
Good Luck
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.