2003 NISSAN X-TRAIL Electronic Repair Manual

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Page 1249 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P0102, P0103 MAF SENSOR
EC-135
[QR (WITH EURO-OBD)]
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EC
8.CHECK MASS AIR FLOW SENSOR
Refer toEC-135, "
Component Inspection".
OK or NG
OK >> GO TO 9.
NG >> Replace mass air f

Page 1250 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual EC-136
[QR (WITH EURO-OBD)]
DTC P0112, P0113 IAT SENSOR
DTC P0112, P0113 IAT SENSOR
PFP:22630
Component DescriptionEBS00B2V
The intake air temperature sensor is built into mass air flow sensor.
The se

Page 1251 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P0112, P0113 IAT SENSOR
EC-137
[QR (WITH EURO-OBD)]
C
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EC
WITH GST
Follow the procedure “With CONSULT-II” above.

Page 1252 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual EC-138
[QR (WITH EURO-OBD)]
DTC P0112, P0113 IAT SENSOR
Wiring Diagram
EBS00B2Y
TBWA0056E

Page 1253 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P0112, P0113 IAT SENSOR
EC-139
[QR (WITH EURO-OBD)]
C
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Diagnostic ProcedureEBS00B2Z
1.CHECK INTAKE AIR TEMPERATURE SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF

Page 1254 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual EC-140
[QR (WITH EURO-OBD)]
DTC P0112, P0113 IAT SENSOR
Component Inspection
EBS00B30
INTAKE AIR TEMPERATURE SENSOR
1. Check resistance between intake air temperature sensor termi-
nals 3 and 5 under

Page 1255 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P0117, P0118 ECT SENSOR
EC-141
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DTC P0117, P0118 ECT SENSORPFP:22630
Component DescriptionEBS00B32
The engine coolant temperature sensor is used to de

DTC P0117, P0118 ECT SENSOR
EC-141
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EC
DTC P0117, P0118 ECT SENSORPFP:22630
Component DescriptionEBS00B32
The engine coolant temperature sensor is used to detect the engine
coolant temperature. The sensor modifies a voltage signal from the
ECM. The modified signal returns to the ECM as the engine coolant
temperature input. The sensor uses a thermistor which is sensitive to
the change in temperature. The electrical resistance of the ther-
mistor decreases as temperature increases.

*: These data are reference values and are measured between ECM terminal 93
(Engine coolant temperature sensor) 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.
On Board Diagnosis LogicEBS00B33
FAI L-S AFE MO DE
When this malfunction is detected, the ECM enters fail-safe mode and the MI lights up.
SEF594K
Engine coolant
temperature°C(°F)Voltage* V Resistance kW
-10 (14) 4.4 7.0 - 11.4
20 (68) 3.5 2.1 - 2.9
50 (122) 2.2 0.68 - 1.00
90 (194) 0.9 0.236 - 0.260
SEF012P
DTC No.Trouble Diagnosis
NameDTC Detecting Condition Possible Cause
P0117
0117Engine coolant
temperature sen-
sor circuit low inputAn excessively low voltage from the sensor is
sent to ECM.
lHarness or connectors
(The sensor circuit is open or shorted.)
lEngine coolant temperature sensor
P0118
0118Engine coolant
temperature sen-
sor circuit low inputAn excessively low voltage from the sensor is
sent to ECM.
Detected items Engine operating condition in fail-safe mode
Engine coolant temper-
ature sensor circuitEngine coolant temperature will be determined by ECM based on the time after turning ignition switch “ON”
or “START”.
CONSULT-II displays the engine coolant temperature decided by ECM.
ConditionEngine coolant temperature decided
(CONSULT-II display)
Just as ignition switch is turned ON or Start 40°C(104°F)
More than approx. 4 minutes after ignition ON or
Sta rt80°C(176°F)
Except as shown above40 - 80°C (104 - 176°F)
(Depends on the time)
When the fail-safe system for engine coolant temperature sensor is activated, the cooling fan operates
while engine is running.

Page 1256 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual EC-142
[QR (WITH EURO-OBD)]
DTC P0117, P0118 ECT SENSOR
DTC Confirmation Procedure
EBS00B34
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch “OFF�

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