WARNING: This page is about a different car, the 2003 Chevrolet Monte Carlo and 2003 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
Scan Tool Output Controls
Scan Tool Output Control
Additional Menu Selection(s)
Description
Retained Accessory Power
Miscellaneous Test
Commands RAP relay On/Off for 5 seconds to check equipment responses