Code P062, Cruise Control Vacuum Solenoid Problem: Notes
WARNING: This page is about a different car, the 1995 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.
Code P062 will set if PCM output PO08 is commanding vacuum solenoid off and feedback is indicating that it is on, or PCM is commanding vacuum solenoid on and feedback is indicating that it is off for 0.5 second.