Check light on in my 99 RL

You must FIRST Determine What CODE/CODES are Stored in the Vehicles Computer, The fact that the Light is ON CONSTANTLY tells that there are "HARD FAULTS" Stored in it and Hard Faults are , Vehicles FAULTS that require Immediate Attention and the Light Will Not turn off Until The Problem or Problems are Corrected. You Can Visit your Local AUTO ZONE and They will Retrieve the CODES for you, It is Important to Research these Codes BEFORE Replacing any Parts. If you Can & Do Get the CODES, I Will be more than Happy to Help Diagnose your Vehicles Problem. REPLY to me Here @ FixYa,
Or Email me at rejakwilson @aol.com. As Long as I am RATED FAIRLY Here on FixYa.com Contact me in the Most Convenient way for you. Have a Good Day!