2003 NISSAN X-TRAIL Service Repair Manual

Page 705 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual DTC P1144 HO2S1
EC-327
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2. RETIGHTEN HEATED OXYGEN SENSOR 1
Loosen and retighten heated oxygen sensor 1.
>> GO TO 3.
3. CLEAR THE SELF-LEARNING DATA
 Wi

Page 706 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual EC-328
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DTC P1144 HO2S1
 
4. CHECK HO2S1 CONNECTOR FOR WATER
1. Turn ignition switch OFF.
2. Disconnect heated oxygen sensor 1 harness connector.
3. Check connectors for water.
OK

Page 707 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual DTC P1144 HO2S1
EC-329
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6. Check the following.
“HO2S1 MNTR (B1)” in “DATA MONITOR” mode changes
from “RICH” to “LEAN” to “RICH” mo

Page 708 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual EC-330
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DTC P1146 HO2S2
 
DTC P1146 HO2S2PFP:226A0
Component DescriptionEBS010SJ
The heated oxygen sensor 2, after three way catalyst (manifold),
monitors the oxygen level in the e

Page 709 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual DTC P1146 HO2S2
EC-331
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DTC Confirmation ProcedureEBS010SM
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
“COMPLETED” will appear on CONSULT-

Page 710 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual EC-332
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DTC P1146 HO2S2
 
Procedure for COND2
1. While driving, release accelerator pedal completed with “OD”
OFF (A/T) from the above condition [step 9] until “INCOM-
PLETE

Page 711 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual DTC P1146 HO2S2
EC-333
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Wiring DiagramEBS010SO
TBWA0603E

Page 712 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual EC-334
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DTC P1146 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