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A/F Sensor On-Vehicle Inspection




A/F Sensor On-Vehicle Inspection

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 ohms at 20 °C (68 °F)









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