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A/F Sensor Heater

  1. Disconnect A/F sensor connector with ignition mode of keyless push start system in "OFF".
  2. Measure resistance of A/F sensor connector (sensor side) between terminals "3" and "4" at A/F sensor connector with ohmmeter. Replace A/F sensor if any faulty conditions are found.
    NOTE: Sensor temperature affects resistance value largely. Make sure that sensor heater is at specified temperature.

    A/F sensor heater resistance 

    2.16 - 2.90 Ω at 20°C (68°F) 

    Fig 1: Identifying A/F Sensor Connector Terminals
    G06528136Courtesy of SUZUKI OF AMERICA CORP.
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