Other information:
Testing of Readiness Codes
Your vehicle has readiness code as part of the onboard self diagnostic
system.
Some States use these codes for testing to verify whether your vehicle's
emissions
components are working properly.
The codes may not be read properly if testing is performed just after the
battery has
gone dead or been disconnected...
Make sure the engine and radiator are cool.
Turn the reserve tank cap 1/8 turn
counterclockwise and relieve any pressure
in the coolant system.
Push down and turn the reserve tank cap
counter-clockwise to remove it.
Pour coolant into the reserve tank until it
reaches the MAX mark...