So I cleaned out my throttle body yesterday since it was pretty dirty. After putting it back together I attempted the Idle Air Volume Learning procedure as described in the factory service manual that I have in PDF form. I don't think I did it right, but after starting the car and running it for a while it all seemed fine, I was idling around 800 RPM. Maybe several hours later my Service Engine Soon light came up and I noticed I was idling around 900 RPM. This morning I attempted the Idle Air Volume Learning procedure again and I think I nailed it since I'm now idling at the recommended 650 RPM (+/- 50 RPM). However my Service Engine Soon light is still on. My car seems fine, I don't notice anything wrong with it. I was just wondering if there's an easy way to read the code thats causing the light to turn on. I don't have a consult-II or anything like that. But I know on my dad's '02 Dodge Dakota you turn the ignition on and off a few times and it prints the codes out on the odometer which is very convenient. Is there any way for me to read the codes on my '04 coupe without using some type of interface?

 

you could try resetting the ecu, then seeing if it comes back on

search for easy ecu reset

 

The "easy" ECU reset worked. Thanks.

 

welcome