Component Inspection
WARNING: This page is about a different car, the 2011 Infiniti FX50. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK HEATED OXYGEN SENSOR 2 HEATER
- Turn ignition switch OFF.
- Disconnect heated oxygen sensor 2 (HO2S2) harness connector.
- Check resistance between HO2S2 terminals as follows.RESISTANCE REFERENCE CHART
Terminal Resistance 2 and 3 3.4 - 4.4 Ω [at 25°C (77°F)] 1 and 2, 3, 4 ∞Ω (Continuity should not exist) 4 and 1, 2, 3 Is the inspection result normal?
YES: INSPECTION END
NO: GO TO 2.
- REPLACE HEATED OXYGEN SENSOR 2
Replace malfunctioning heated oxygen sensor 2. Refer to "EXPLODED VIEW ".
CAUTION:- Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor; use a new one.
- Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread Cleaner [commercial service tool (J-43897-18 or J-43897-12)] and approved anti-seize lubricant (commercial service tool).
INSPECTION END