Cruise Control Switch Inspection

Disconnect the negative battery cable.
Remove the driver-side air bag module. (See DRIVER-SIDE AIR BAG MODULE .)
Disconnect the cruise control switch connector.
Measure the resistance and inspect for continuity between the cruise control switch terminals using an ohmmeter.
- If not as specified, replace the cruise control switch.
  
  Fig 1: Checking Cruise Control Switch Resistance/Continuity
  Courtesy of MAZDA MOTORS CORP.
  
  Fig 2: Cruise Control Switch Schematic & Terminals
  Courtesy of MAZDA MOTORS CORP.