2001 NISSAN X-TRAIL Service Repair Manual

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Page 1025 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual HO2S1
EC-675
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3. Select “HO2S1 (B1)” and “HO2S1 MNTR (B1)”.
4. Hold engine speed at 2,000 rpm under no load during the follow-
ing steps.
5. T

Page 1026 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-676
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HO2S1
●Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor
Thread Cleaner tool J-43897-18 or J-43897-12 and approved anti

Page 1027 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual HO2S2
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HO2S2PFP:226A0
Component DescriptionEBS00NCV
The heated oxygen sensor 2, after three way catalyst, monitors the
oxygen level in

Page 1028 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-678
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HO2S2
Wiring Diagram
EBS00NCY
TBWA0076E

Page 1029 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual HO2S2
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Diagnostic ProcedureEBS00NCZ
1.CHECK OVERALL FUNCTION-I
1. Start engine and warm it up to the normal operating temperature.
2. Turn igni

Page 1030 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-680
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HO2S2
4. CHECK HO2S2 GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect heated oxygen sensor 2 harness connector.
3. Check harness con

Page 1031 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual HO2S2
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5. Select “FUEL INJECTION” in “ACTIVE TEST” mode, and select
“HO2S2 (B1)” as the monitor item with CONSULT-II.
6. Check “H

HO2S2
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5. Select “FUEL INJECTION” in “ACTIVE TEST” mode, and select
“HO2S2 (B1)” as the monitor item with CONSULT-II.
6. Check “HO2S2 (B1)” at idle speed when adjusting “FUEL INJECTION” to ±25%.
“HO2S2 (B1)” should be above 0.68V at least once when the “FUEL INJECTION” is +25%.
“HO2S2 (B1)” should be below 0.50V at least once when the “FUEL INJECTION” is −25%.
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 tool J-43897-18 or J-43897-12 and approved anti-seize lubricant.
Without CONSULT-II
1. Start engine and warm it up to the normal operating temperature.
2. Turn ignition switch “OFF” and wait at least 10 seconds.
3. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least one minute under no
load.
4. Let engine idle for one minute.
5. Set voltmeter probes between ECM terminal 95 (HO2S2 signal) and engine ground.
6. Check the voltage when revving up to 4,000 rpm under no load
at least 10 times.
(Depress and release accelerator pedal as soon as possible.)
The voltage should be above 0.68V at least once during this
procedure.
If the voltage is above 0.68V at step 4, step 5 is not neces-
sary.
7. Keep vehicle idling for 10 minutes, then check voltage. Or check
the voltage when coasting from 80 km/h (50 MPH) in “D” posi-
tion with “OD” OFF (A/T), 3rd gear position (M/T).
The voltage should be below 0.50V at least once during this
procedure.
8. If NG, replace heated oxygen sensor 2.
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 tool J-43897-18 or J-43897-12 and approved anti-seize lubricant.
SEF662Y
PBIB0551E
PBIB0550E

Page 1032 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-682
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HO2S2
Removal and Installation
EBS00ND1
HEATED OXYGEN SENSOR 2
Refer to EX-2, "EXHAUST SYSTEM" .

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