DTC 11: Cruise Control Switch (Set/Coast Switch)
WARNING: This page is about a different car, the 2002 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
Perform DTC 21. If DTC 21 checks out okay, and DTC 11 is still indicated in condition detection mode of on-board diagnostics, replace cruise control module. See CRUISE ACTUATOR under REMOVAL & INSTALLATION.