2003 NISSAN X-TRAIL engine

DTC P0117, P0118 ECT SENSOR
EC-1295
[YD (WITHOUT EURO-OBD)]
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2. CHECK ECT SENSOR POWER SUPPLY CIRCUIT
1. Disconnect engine coolant temperature sensor harness connec-
tor.
2. Turn ignition switch ON.
3. Check voltage between ECT sensor terminal 1 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connectors.
3. CHECK ECT SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECT sensor terminal 2 and ECM terminal 70. Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK ENGINE COOLANT TEMPERATURE SENSOR
Refer to EC-1296, "
Component Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Replace engine coolant temperature sensor.
5. CHECK INTERMITTENT INCIDENT
Refer to EC-1260, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
PBIB1892E
Voltage: Approximately 5.3V
PBIB0152E
Continuity should exist.

EC-1296
[YD (WITHOUT EURO-OBD)]
DTC P0117, P0118 ECT SENSOR

Component InspectionEBS011Z1
ENGINE COOLANT TEMPERATURE SENSOR
1. Check resistance between engine coolant temperature sensor
terminals 1 and 2 as shown in the figure.

2. If NG, replace engine coolant temperature sensor.
Removal and InstallationEBS011Z2
ENGINE COOLANT TEMPERATURE SENSOR
Refer to EM-196, "CYLINDER HEAD" .
PBIB2005E
Engine coolant temperature °C (°F) Resistance kΩ
20 (68) 2.1 - 2.9
50 (122) 0.68 - 1.00
90 (194) 0.236 - 0.260
SEF012P

DTC P0122, P0123 APP SENSOR
EC-1297
[YD (WITHOUT EURO-OBD)]
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DTC P0122, P0123 APP SENSORPFP:18002
DescriptionEBS011Z3
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The ECM uses the signal to
determine the amount of fuel to be injected.
CONSULT-II Reference Value in Data Monitor ModeEBS011Z4
Specification data are reference values.
*: These signals are converted by ECM internally. Thus, these differ from ECM terminals voltage.
ECM Terminals and Reference ValueEBS011Z5
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.
PBIB1741E
MONITOR ITEM CONDITION SPECIFICATION
ACCEL POS SEN*

Ignition switch: ON
(Engine stopped)Accelerator pedal: Fully released 0.2 - 0.7V
Accelerator pedal: Fully depressed 3.9 - 4.9V
ACCEL SEN 2*

Ignition switch: ON
(Engine stopped)Accelerator pedal: Fully released 0.1 - 0.4V
Accelerator pedal: Fully depressed 1.9 - 2.4V
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
82 BAccelerator pedal position
sensor 1 power supply[Ignition switch ON]Approximately 5.3V
83 WAccelerator pedal position
sensor 1[Ignition switch ON]

Engine stopped

Accelerator pedal: Fully released0.5 - 1.0V
[Ignition switch ON]

Engine stopped

Accelerator pedal: Fully depressed4.2 - 5.2V
84 RAccelerator pedal position
sensor 1 ground[Ignition switch ON]Approximately 0.3V
85 —Sensor ground
(Accelerator pedal posi-
tion sensor shield circuit)[Ignition switch ON]Approximately 0.3V
90 LAccelerator pedal position
sensor 2 power supply[Ignition switch ON]Approximately 5.3V

EC-1298
[YD (WITHOUT EURO-OBD)]
DTC P0122, P0123 APP SENSOR

On Board Diagnosis LogicEBS011Z6
The MI will not light up for these self-diagnoses.
DTC Confirmation ProcedureEBS011Z7
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Wait at least 5 seconds.
4. If DTC is detected, go to EC-1300, "
Diagnostic Procedure" .
91 GAccelerator pedal position
sensor 2[Ignition switch ON]

Engine stopped

Accelerator pedal: Fully released0.4 - 0.7V
[Ignition switch ON]

Engine stopped

Accelerator pedal: Fully depressed2.2 - 2.7V
92 YAccelerator pedal position
sensor 2 ground[Ignition switch ON]Approximately 0.3V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0122Accelerator pedal position
sensor 1 circuit low inputAn excessively low voltage from the APP sensor
1 is sent to ECM.

Harness or connectors
(The APP sensor 1 circuit is open or
shorted.)

Accelerator pedal position sensor
(Accelerator pedal position sensor 1) P0123Accelerator pedal position
sensor 1 circuit high inputAn excessively high voltage from the APP sensor
1 is sent to ECM.
SEF817Y

EC-1300
[YD (WITHOUT EURO-OBD)]
DTC P0122, P0123 APP SENSOR

Diagnostic ProcedureEBS011Z9
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten engine ground screws. Refer to EC-1267, "
Ground Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
PBIB2020E

DTC P0182, P0183 FUEL PUMP TEMPERATURE SENSOR
EC-1303
[YD (WITHOUT EURO-OBD)]
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DTC P0182, P0183 FUEL PUMP TEMPERATURE SENSORPFP:16700
DescriptionEBS011ZC
Fuel pump temperature sensor is built in the fuel pump. The sensor detects the fuel temperature in the fuel
pump and calibrates the fuel injection amount change by fuel temperature.
CONSULT-II Reference Value in Data Monitor ModeEBS011ZD
Specification data are reference values.
ECM Terminals and Reference ValueEBS011ZE
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 LogicEBS011ZF
The MI will not light up for these self-diagnoses.
DTC Confirmation ProcedureEBS011ZG
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Wait at least 5 seconds.
4. If 1st trip DTC is detected, go to EC-1305, "
Diagnostic Proce-
dure" .
MONITOR ITEM CONDITION SPECIFICATION
FUEL TEMP SEN

Engine: After warming up More than 40°C (104°F)
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
50 PUFuel pump temperature
sensor[Engine is running]

Warm-up conditionApproximately 0.3 - 5.3V
Output voltage varies with fuel
pump temperature
69 BFuel pump temperature
sensor ground[Ignition switch ON]Approximately 0.3V
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0182Fuel pump temperature
sensor circuit low inputAn excessively low voltage from the sensor is
sent to ECM.

Harness or connectors
(The sensor circuit is open or
shorted.)

Fuel pump temperature sensor P0183Fuel pump temperature
sensor circuit high inputAn excessively high voltage from the sensor is
sent to ECM.
SEF817Y

DTC P0182, P0183 FUEL PUMP TEMPERATURE SENSOR
EC-1305
[YD (WITHOUT EURO-OBD)]
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Diagnostic ProcedureEBS011ZI
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten engine ground screws. Refer to EC-1267, "
Ground Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
PBIB2020E

DTC P0192, P0193 FRP SENSOR
EC-1307
[YD (WITHOUT EURO-OBD)]
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DTC P0192, P0193 FRP SENSORPFP:16638
DescriptionEBS011ZK
The fuel rail pressure (FRP) sensor is placed to the fuel rail. It measures the fuel pressure in the fuel rail. The
sensor sends voltage signal to the ECM. As the pressure increases, the voltage rises.
The ECM controls the fuel pressure in the fuel rail by the inlet throttling device. The ECM uses the signal from
fuel rail pressure sensor as a feedback signal.
CONSULT-II Reference Value in Data Monitor ModeEBS011ZL
Specification data are reference values.
ECM Terminals and Reference ValueEBS011ZM
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 LogicEBS011ZN
The MI will not light up for these self-diagnoses.
MONITOR CONDITION SPECIFICATOIN
ACT CR PRESS

Engine: After warming up

Air conditioner switch: OFF

Shift lever: Neutral position

No-loadIdle 20 - 30 MPa
2,000 rpm 45 - 55 MPa
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
48
49Y/R
RFuel rail pressure sensor[Engine is running]

Warm-up condition

Idle speed1.7 - 2.0V
[Engine is running]

Warm-up condition

Engine speed is 2,000 rpm2.0 - 2.3V
63 WFuel rail pressure sensor
power supply[Ignition switch ON]Approximately 5.3V
67 —Sensor ground
(Sensors shield circuit)[Ignition switch ON]Approximately 0.3V
68 BFuel rail pressure sensor
ground[Ignition switch ON]Approximately 0.3V
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0192Fuel rail pressure sensor
circuit low inputAn excessively low voltage from the sensor is
sent to ECM.

Harness or connectors
(The sensor circuit is open or
shorted.)

Fuel rail temperature sensor P0193Fuel rail temperature sen-
sor circuit high inputAn excessively high voltage from the sensor is
sent to ECM.