Cruise Control Switch Inspection

Disconnect the negative battery cable.
Remove the driver-side air bag module. See DRIVER-SIDE AIR BAG MODULE .
Disconnect the audio control switch connector.
Measure the resistance and inspect for continuity between the cruise control switch terminals using a tester.
- If not as specified, replace the cruise control switch.
  
  Fig 1: Cruise Control Switch Continuity Table
  Courtesy of MAZDA MOTORS CORP.
  
  Fig 2: Measuring Resistance & Inspecting Continuity Between Cruise Control Switch Terminals
  Courtesy of MAZDA MOTORS CORP.