My maintainence required light came on my 2003 Accord LX around 94,000 miles so I plugged in my OBD II and there were no codes. I reset my dashboard light and the maintainence required light came back on. My assumption is that it is an oxygen sensor, given the mileage of the car and the symptoms, but without a code I don't know whether it's the before or after catalytic converter oxygen sensor, and at over $100 a piece, I only want to replace the offending sensor.

Anyone else ever encounter this issue or have any advice as to another way to determine which oxygen sensor needs replacing?

 

Maintenance Reqd. light is not an error code at all. Simply a MILEAGE reminder that it's time to change oil.

Reset it like this...
Key OFF
Press & hold the odometer-reset button
Turn the key ON while continuing to hold the reset button
Continue holding the reset button forever - well maybe like 25 seconds
The maint. lamp will flash a few times then stay OFF
DONE

 

I've reset my lights in the way you mentioned above, but the light won't go away. It's only been 1000 miles since I had my oil changed and all my fluid levels are acceptable. I would really like for the light to go away.