2003 NISSAN X-TRAIL Service Repair Manual

Page 697 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual DTC P1143 HO2S1
EC-319
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DTC Confirmation ProcedureEBS010S6
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If DTC Confirmation Procedure has been p

Page 698 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual EC-320
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DTC P1143 HO2S1
 
 WITH GST
1. Start engine and warm it up to normal operating temperature.
2. Set voltmeter probes between ECM terminal 35 (HO2S1 signal) and ground.
3. Ch

Page 699 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual DTC P1143 HO2S1
EC-321
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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 700 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual EC-322
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DTC P1143 HO2S1
 
5. CHECK HEATED OXYGEN SENSOR 1
Refer to EC-322, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace heated oxygen sensor 1.
6. CHECK INTERMIT

Page 701 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual DTC P1143 HO2S1
EC-323
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Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread
Cleaner tool J-43897-18 or J-43897

Page 702 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual EC-324
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DTC P1144 HO2S1
 
DTC P1144 HO2S1PFP:22690
Component DescriptionEBS010SB
The heated oxygen sensor 1 is placed into the exhaust manifold. It
detects the amount of oxygen in

Page 703 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual DTC P1144 HO2S1
EC-325
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DTC Confirmation ProcedureEBS010SE
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If DTC Confirmation Procedure has been p

Page 704 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual EC-326
[QR (WITH EURO-OBD)]
DTC P1144 HO2S1
 
 WITH GST
1. Start engine and warm it up to normal operating temperature.
2. Set voltmeter probes between ECM terminal 35 (HO2S1 signal) and ground.
3. Ch