2003 NISSAN X-TRAIL Electronic Repair Manual

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Page 1369 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P0650 MI
EC-255
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5.CHECK COMBINATION METER
1. Turn ignition switch "OFF".
2. Disconnect combination meter harness connector.
3. Check continuity under

Page 1370 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual EC-256
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DTC P1065 ECM POWER SUPPLY
DTC P1065 ECM POWER SUPPLY
PFP:23710
Component DescriptionEBS00B7B
Battery voltage is supplied to the ECM even when the ignition switch
is turned

Page 1371 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P1065 ECM POWER SUPPLY
EC-257
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Wiring DiagramEBS00B7E
TBWA0129E

Page 1372 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual EC-258
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DTC P1065 ECM POWER SUPPLY
Diagnostic Procedure
EBS00B7F
1.CHECK ECM POWER SUPPLY
1. Turn ignition switch "OFF".
2. Disconnect ECM harness connector.
3. Check voltage betwe

Page 1373 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P1065 ECM POWER SUPPLY
EC-259
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5.REPLACE ECM
1. Replace ECM.
2. Perform initialization of NATS system and registration of all NATS ignition key IDs. R

Page 1374 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual EC-260
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DTC P1102 MAF SENSOR
DTC P1102 MAF SENSOR
PFP:22680
Component DescriptionEBS00B7G
The mass air flow sensor is placed in the stream of intake air. It mea-
sures the intake f

EC-260
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DTC P1102 MAF SENSOR
DTC P1102 MAF SENSOR
PFP:22680
Component DescriptionEBS00B7G
The mass air flow sensor is placed in the stream of intake air. It mea-
sures the intake flow rate by measuring a part of the entire intake
flow. It consists of a hot film that is supplied with electric current from
the ECM. The temperature of the hot film is controlled by the ECM a
certain amount. The heat generated by the hot film is reduced as the
intake air flows around it. The more air, the greater the heat loss.
Therefore, the ECM must supply more electric current to maintain
the temperature of the hot film as air flow increases. The ECM
detects the air flow by means of this current change.
CONSULT-II Reference Value in Data Monitor ModeEBS00B7H
Specification data are reference values.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
ECM Terminals and Reference ValueEBS00B7I
Specification data are reference values and are measured between each terminal and body ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
SEC266C
MONITOR ITEM CONDITION SPECIFICATION
MAS A/F SE-B1
lEngine: After warming up
lAir conditioner switch: OFF
lShift lever: N
lNo-loadIdle Approx. 1.0 - 1.5V
2,500 rpm Approx. 1.6 - 2.0V
CAL/LD VALUE
lEngine: After warming up
lShift lever: N
lAir conditioner switch: OFF
lNo-loadIdle 10% - 35%
2,500 rpm 10% - 35%
MASS AIRFLOW
lEngine: After warming up
lShift lever: N
lAir conditioner switch: OFF
lNo-loadIdle 1.0 - 4.0 g·m/s
2,500 rpm 4.0 - 10.0 g·m/s
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
72 OR Mass air flow sensor[Engine is running]
lWarm-up condition
lIdle speed1.1 - 1.5V
[Engine is running]
lWarm-up condition
lEngine speed is 2,500 rpm.1.6 - 2.0V
80 B/PMass air flow sensor
ground[Engine is running]
lWarm-up condition
lIdle speedApproximately 0V

Page 1375 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P1102 MAF SENSOR
EC-261
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On Board Diagnosis LogicEBS00B7J
FAI L-S AFE MO DE
When the malfunction is detected, the ECM enters fail-safe mode and the MI

Page 1376 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual EC-262
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DTC P1102 MAF SENSOR
Wiring Diagram
EBS00B7L
TBWA0055E

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