Cruise Control Switch Inspection

Disconnect the negative battery cable.
Remove the driver-side air bag module. (See DUAL-STAGE DRIVER-SIDE AIR BAG MODULE .)
Disconnect the audio control switch connector. (See AUDIO CONTROL SWITCH REMOVAL/INSTALLATION .)
Inspect for resistance and continuity between cruise control switch terminals B-C using a tester. If not as specified, replace the cruise control switch.

Fig 1: Locating Cruise Control Switch Connector Terminals
Courtesy of MAZDA MOTORS CORP.

Fig 2: Checking Continuity At Cruise Control Switch Connector Terminals
Courtesy of MAZDA MOTORS CORP.