Inspection Method for Switch Connectors or Wiring Harnesses

Connect the M-MDS 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 during idle.
Access PIDs for the switch you are inspecting.
Turn the switch on manually.
Slightly shake each connector or wiring harness vertically and horizontally while monitoring the PID.
- If PID value is unstable, inspect for poor connection.
  
  Fig 1: Inspecting Switch Connectors/Wiring Harnesses
  Courtesy of MAZDA MOTORS CORP.