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Home >> Mazda >> 2005 >> 3 i, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting [Engine] >> Intermittent Concern Troubleshooting >> Vibration Method >> Inspection Method for Switch Connectors or Wiring Harnesses
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Inspection Method for Switch Connectors or Wiring Harnesses

  1. Connect the WDS or equivalent to the DLC-2.
  2. Turn the ignition switch to the ON position (Engine off).
    NOTE:
    • If the engine starts and runs, perform the following steps during idle.
  3. Access PIDs for the switch you are inspecting.
  4. Turn the switch on manually.
  5. 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: Shaking Wiring Harness Vertically And Horizontally
    G03635700Courtesy of MAZDA MOTORS CORP.