2003 NISSAN X-TRAIL Service Repair Manual

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Page 577 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual DTC P0134 HO2S1
EC-199
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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 ste

Page 578 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual EC-200
[QR (WITH EURO-OBD)]
DTC P0134 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-seiz

Page 579 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual DTC P0138 HO2S2
EC-201
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DTC P0138 HO2S2PFP:226A0
Component DescriptionEBS010OL
The heated oxygen sensor 2, after three way catalyst (manifold),
monitors

Page 580 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual EC-202
[QR (WITH EURO-OBD)]
DTC P0138 HO2S2

WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-II.
2. Start engine and warm it up to the normal operating tem

Page 581 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual DTC P0138 HO2S2
EC-203
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Wiring DiagramEBS010OQ
TBWA0603E

Page 582 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual EC-204
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DTC P0138 HO2S2

Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/o

Page 583 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual DTC P0138 HO2S2
EC-205
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2. CHECK HO2S2 GROUND CIRCUIT FOR OPEN AND SHORT
1. Disconnect heated oxygen sensor 2 harness connector.
2. Disconnect ECM harne

Page 584 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual EC-206
[QR (WITH EURO-OBD)]
DTC P0138 HO2S2

5. Select “FUEL INJECTION” in “ACTIVE TEST” mode, and select
“HO2S2(B1)” as the monitor item with CONSULT-II.
6. Check “HO2S2 (B1)” at idl

EC-206
[QR (WITH EURO-OBD)]
DTC P0138 HO2S2

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 1 minute under no load.
4. Let engine idle for 1 minute.
5. Set voltmeter probes between ECM terminal 16 (HO2S2 signal) and 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 6, step 7 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 position
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
MBIB0020E

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