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HOMESERVICE MANUALSMAZDA20086 S SPORT, 4D HATCHBACK, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 520 (AUTOMATIC TRANSMISSION [SHIFT MECHANISM])KEY INTERLOCK UNIT INSPECTION
2008 Mazda 6 s Sport, 4D Hatchback, Standard

Key Interlock Unit Inspection

2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Key Interlock Unit Inspection
WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the front side trim.
  2. Turn the ignition switch to ON, and inspect terminal voltages, referring to the chart below.
    • If not as specified, repair the wiring harness and/or key interlock unit.
      Fig 1: Identifying Key Interlock Harness Side Connector
      G03638450Courtesy of MAZDA MOTORS CORP.
      TERMINAL REFERENCE

      Terminal (-) terminal connected to Condition Correct measurement value (V)
      A G For less than 2 seconds after ignition switch is turned to ACC or on with P position switch on. Approx.0
      Except above conditions B+
      C G P position switch is on, and ignition switch is turned to ACC or ON. Approx.0
      Except above condition B+
      G Ground Under any condition Approx.0
      K G P position switch is on. Approx.0
      P position switch is off. B+
      0 G Ignition switch is at ON. B+
      Ignition switch is off. Approx.0
      P G Ignition switch is at ACC. B+
      Ignition switch is at position other than ACC. Approx.0
  3. Install the front side trim.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.