[Domestic Power]

Ok Guys, as some here already know I bought my 1990 steel blue Z last Nov. I have spent the winter dolling her ( Roxie ) up, mostly a ton of elbow grease, also went completely through the brakes and currently changing all fluids. Changed the oil yesterday, started the car to let it get up to temp. (fans on) shut down, pulled the plug and let her set overnight. Put the oil & filter in this morning, started her up let it come up to temp., shut her down, checked for any drips and all is well. This evening I start the coolant flush FSM procedure, after flushing DW through 3 or 4 times I switched to 50/50 mix. This time I start the car and my service ride control light is on. I go ahead and let the car get up to temp. fans kick in drop temp. and I shut her down. Just for giggles I wait a minute or two and restart, no service ride control light BUT ! within about 20 or so seconds it pops back on. Any thoughts ? is this happenstance or what ?, Thanks in advance, Bob