On-vehicle inspection

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Disconnect the coupler component connector.
1. Disconnect the negative battery cable.
2. Remove the air cleaner component. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
3. Disconnect the coupler component connector.
  
  Fig 1: Coupler Component
  Courtesy of MAZDA MOTORS CORP.
Measure the resistance between the coupler component terminals.
- If there is any malfunction, inspect the coupler component for continuity.
- If coupler component has no malfunction, perform the "Off-vehicle inspection". (See OFF-VEHICLE INSPECTION .)
  
  Fig 2: Coupler Component Connector Terminals
  Courtesy of MAZDA MOTORS CORP.