Heated Oxgen Sensor (Ho2S) Inspection - Suzuki AN650 2002 Service Manual

HEATED OXGEN SENSOR (HO2S) INSPECTION

• Remove the foot board. (
• Disconnect the HO2 sensor lead wire coupler.
• Remove the HO2 sensor unit.
Do not remove the HO2 sensor while it is hot.
Be careful not to expose it to excessive shock.
Do not use an impact wrench while removing or
installing the HO2 sensor unit.
Be careful not to twist or damage the sensor lead wire.
• Inspect the HO2 sensor and its circuit referring to flow table of
the malfunction code (C44).
• Disconnect the HO2 sensor coupler.
• Check the resistance between the terminals (white – white) of
the HO2 sensor.
Resistance: 4 – 5 Ω Ω Ω Ω (at 23 °C/73.4 °F)
09900-25008: Multi circuit tester set
Tester knob indication: Resistance (Ω Ω Ω Ω )
If the resistance is not within the standard range, replace the
HO2 sensor with a new one.
NOTE:
* Temperature of the sensor affects resistance value largely.
* Make sure that the sensor heater is at correct temperature.
• Connect the HO2 sensor coupler securely.
• Installation is in the reverse order of removal.
Do not apply oil or other materials to the sensor air
hole.
• Tighten the sensor unit to the specified torque.
HO2 SENSOR: 47.5 N·m (4.75 kgf-m, 34.3 lb-ft)
• Route the HO2 sensor lead wire into the frame.
• Connect the HO2 sensor coupler.
9-18)
EMISSION CONTROL INFORMATION 12-9
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