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Component Inspection

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.

HO2S2		Condition		Resistance
+	-
Terminal
4	3	Temperature	25 deg. C (77 deg. F)	3.4 - 4.4 Ohms
1	2			Not existed
	3
	4
4	1
	2

Is the inspection result normal?

YES

INSPECTION END

NO

GO TO 2.

REPLACE HEATED OXYGEN SENSOR 2
Replace 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.
INSPECTION END