2001 NISSAN X-TRAIL Service Repair Manual

headlight bulb ignition immobilizer service interval reset tyre pressure child seat

Page 865 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC U1000 CAN COMMUNICATION LINE
EC-515
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Diagnostic ProcedureEBS00ODV
1.INSPECTION START
1. Turn ignition switch “ON”.
2. Select “CAN DIAG SUPPO

Page 866 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-516
[QR25(WITHOUT EURO-OBD)]
DTC P0102, P0103 MAF SENSOR
DTC P0102, P0103 MAF SENSOR
PFP:22680
Component DescriptionEBS00NEV
The mass air flow sensor is placed in the stream of intake air. It mea-

EC-516
[QR25(WITHOUT EURO-OBD)]
DTC P0102, P0103 MAF SENSOR
DTC P0102, P0103 MAF SENSOR
PFP:22680
Component DescriptionEBS00NEV
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 ModeEBS00NEW
Specification data are reference values.
ECM Terminals and Reference ValueEBS00NEX
Specification data are reference values and are measured between each terminal and 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.
On Board Diagnosis LogicEBS00NEY
These self-diagnoses have the one trip detection logic.
SEC266C
MONITOR ITEM CONDITION SPECIFICATION
MAS A/F SE-B1
●Engine: After warming up
●Air conditioner switch: OFF
●Shift lever: N
●No-loadIdle Approx. 1.0 - 1.5V
2,500 rpm Approx. 1.6 - 2.0V
CAL/LD VALUE
●Engine: After warming up
●Shift lever: N
●Air conditioner switch: OFF
●No-loadIdle 10% - 35%
2,500 rpm 10% - 35%
MASS AIRFLOW
●Engine: After warming up
●Shift lever: N
●Air conditioner switch: OFF
●No-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]
●Warm-up condition
●Idle speed1.1 - 1.5V
[Engine is running]
●Warm-up condition
●Engine speed is 2,500 rpm.1.6 - 2.0V
80 B/PMass air flow sensor
ground[Engine is running]
●Warm-up condition
●Idle speedApproximately 0V

Page 867 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P0102, P0103 MAF SENSOR
EC-517
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FAIL-SAFE MODE
When the malfunction is detected, the ECM enters fail-safe mode and the MI lights up.
DTC Confirmat

Page 868 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-518
[QR25(WITHOUT EURO-OBD)]
DTC P0102, P0103 MAF SENSOR
Without CONSULT-II
1. Turn ignition switch “ON” and wait at least 5 seconds.
2. Turn ignition switch “OFF”, wait at least 10 second

Page 869 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P0102, P0103 MAF SENSOR
EC-519
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Wiring DiagramEBS00NF0
TBWA0055E

Page 870 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-520
[QR25(WITHOUT EURO-OBD)]
DTC P0102, P0103 MAF SENSOR
Diagnostic Procedure
EBS00NF1
1. INSPECTION START
Which malfunction (P0102 or P0103) is duplicated?
P0102 or P0103
P0102 >> GO TO 2.
P0103 >

Page 871 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P0102, P0103 MAF SENSOR
EC-521
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5.DETECT MALFUNCTIONING PART
Check the following.
●Harness for open or short between ECM relay and mass air flow

Page 872 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-522
[QR25(WITHOUT EURO-OBD)]
DTC P0102, P0103 MAF SENSOR
Component Inspection
EBS00NF2
MASS AIR FLOW SENSOR
1. Reconnect harness connectors disconnected.
2. Start engine and warm it up to normal op

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