Inspection Method For Sensor Connectors Or Wires

WARNING: This page is about a different car, the 2004 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

Connect the WDS or equivalent to the DLC-2.
Turn the ignition switch to the ON position (Engine off).
NOTE:
- If the engine starts and runs, perform the following steps at idle.
Access the PIDs for the switch you are inspecting.
Shake each connector or wiring harness a bit vertically and horizontally while monitoring the PID.
- If the PID value is unstable, check for poor connection.
  
  Fig 1: Checking Connector Connections
  Courtesy of MAZDA MOTORS CORP.