Nissan Note [767/1872] Heated oxygen sensor 1

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Nissan Note [767/1872] Heated oxygen sensor 1
HO2S1 HEATER
EC-767
[CR (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
5. CHECK HO2S1 OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 24 and HO2S1 terminal 3.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
6. CHECK HEATED OXYGEN SENSOR 1 HEATER
Refer to EC-767, "
Component Inspection" .
OK or NG
OK >> GO TO 7.
NG >> Replace heated oxygen sensor 1.
7. CHECK INTERMITTENT INCIDENT
Refer to EC-542, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>> INSPECTION END
Component Inspection
BBS003BQ
HEATED OXYGEN SENSOR 1 HEATER
1. Check resistance between HO2S1 terminals as follows.
2. If NG, replace heated oxygen sensor 1.
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 sur-
face such as a concrete floor; use a new one.
Before installing new oxygen sensor, clean exhaust system
threads using Oxygen Sensor Thread Cleaner and
approved anti-seize lubricant.
Removal and Installation
BBS003BR
HEATED OXYGEN SENSOR 1
Refer to EM-24, "EXHAUST MANIFOLD AND THREE WAY CATALYST" .
Continuity should exist.
Terminal No. Resistance
2and3 3.3-4.4 at 25°C(77°F)
1 and 2, 3, 4
∞Ω
(Continuity should not exist)
4 and 1, 2, 3
MBIB1306E

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