2003 NISSAN X-TRAIL Electronic Repair Manual

Page 1601 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual DTC P0121 APP SENSOR
EC-487
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Diagnostic ProcedureEBS00BGW
1.RETIGHTEN GROUND SCREWS
1. Turn ignition switch “OFF”.
2. Loosen and retighten engine g

Page 1602 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual EC-488
[QR (WITHOUT EURO-OBD)]
DTC P0121 APP SENSOR
4.CHECK APP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Check harness continuity between APP sensor terminal 1, 3

Page 1603 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual DTC P0121 APP SENSOR
EC-489
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10.CHECK INTERMITTENT INCIDENT
Refer toEC-453, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Component

Page 1604 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual EC-490
[QR (WITHOUT EURO-OBD)]
DTC P0134 HO2S1
DTC P0134 HO2S1
PFP:22690
Component DescriptionEBS00BGZ
The heated oxygen sensor 1 is placed into the front tube. It detects
the amount of oxygen in the

Page 1605 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual DTC P0134 HO2S1
EC-491
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On Board Diagnosis LogicEBS00BH2
Under the condition in which the heated oxygen sensor 1 signal is
not input, the ECM circuits

Page 1606 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual EC-492
[QR (WITHOUT EURO-OBD)]
DTC P0134 HO2S1
Wiring Diagram
EBS00BH5
TBWA0059E

Page 1607 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual DTC P0134 HO2S1
EC-493
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Diagnostic ProcedureEBS00BH6
1.INSPECTION START
1. Turn ignition switch “OFF”.
2. Loosen and retighten engine ground screws

Page 1608 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual EC-494
[QR (WITHOUT EURO-OBD)]
DTC P0134 HO2S1
5.CHECK INTERMITTENT INCIDENT
Refer toEC-453, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Component InspectionEBS00BH7
HEATED OXYGEN