2005 NISSAN X-TRAIL coolant temperature

EC-1402
[YD (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS

47 G/R Camshaft position sensor[Engine is running]

Warm-up condition

Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle.0 - 6V
[Engine is running]

Warm-up condition

Engine speed is 2,000 rpm0 - 6V
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
50 PUFuel pump temperature
sensor[Engine is running]

Warm-up conditionApproximately 0.3 - 5.3V
Output voltage varies with fuel
pump temperature
51 L/OREngine coolant tempera-
ture sensor[Engine is running]

Warm-up conditionApproximately 0.3 - 5.3V
Output voltage varies with engine
coolant temperature
52 Y Turbocharger boost sensor[Engine is running]

Warm-up condition

Idle speed2.3 - 2.6V
[Engine is running]

Warm-up condition

Engine speed is 2,000 rpm2.5 - 2.8V
54 W Mass air flow sensor[Engine is running]

Warm-up condition

Idle speed1.8 - 2.3V
[Engine is running]

Warm-up condition

Engine speed is 2,000 rpm2.5 - 3.0V
55 GIntake air temperature sen-
sor[Engine is running]

Warm-up conditionApproximately 0.3 - 5.2V
Output voltage varies with intake
air temperature
59
60
61
62W/B
Y/B
G/B
R/BFuel injector adjustment
resistor No. 1
Fuel injector adjustment
resistor No. 3
Fuel injector adjustment
resistor No. 4
Fuel injector adjustment
resistor No. 2[Ignition switch ON]0.5 - 5.1V
(There are individual differences
between fuel injector adjustment
resistors.) TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
MBIB0877E
MBIB0878E

TROUBLE DIAGNOSIS
EC-1403
[YD (WITHOUT EURO-OBD)]
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63 WFuel rail pressure sensor
power supply[Ignition switch ON]Approximately 5.3V
64 WTurbocharger boost sensor
power supply[Ignition switch ON]Approximately 5.3V
65 L/RCrankshaft position sen-
sor ground[Engine is running]

Warm-up condition

Idle speedApproximately 0.3V
66 G/YCamshaft position sensor
ground[Engine is running]

Warm-up condition

Idle speedApproximately 0.3V
67 —Sensor ground
(Sensors shield circuit)[Engine is running]

Warm-up condition

Idle speedApproximately 0.3V
68 BFuel rail pressure sensor
ground[Engine is running]

Warm-up condition

Idle speedApproximately 0.3V
69 BFuel pump temperature
sensor ground[Engine is running]

Warm-up condition

Idle speedApproximately 0.3V
70 BEngine coolant tempera-
ture sensor ground[Engine is running]

Warm-up condition

Idle speedApproximately 0.3V
71 BTurbocharger boost sensor
ground[Engine is running]

Warm-up condition

Idle speedApproximately 0.3V
73 BMass air flow sensor
ground[Engine is running]

Warm-up condition

Idle speedApproximately 0.3V
74 RIntake air temperature sen-
sor ground[Engine is running]

Warm-up condition

Idle speedApproximately 0.3V
78 RFuel injector adjustment
resistor ground[Engine is running]

Warm-up condition

Idle speedApproximately 0.3V
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[Engine is running]

Warm-up condition

Idle speedApproximately 0.3V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)

TROUBLE DIAGNOSIS
EC-1407
[YD (WITHOUT EURO-OBD)]
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ENGINE CONTROL COMPONENT PARTS/CONTROL SYSTEMS APPLICATION
X: Applicable
SELF-DIAGNOSTIC MODE
Self Diagnostic Item
Regarding items detected in “SELF-DIAG RESULTS” mode, refer to EC-1351, "INDEX FOR DTC" .
Freeze Frame Data
ItemDIAGNOSTIC TEST MODE
SELF-DIAG RESULTS
DATA MON-
ITORACTIVE
TEST
DTCFREEZE
FRAME
DATA
ENGINE CONTROL COMPONENT PARTS
INPUTCrankshaft position sensor×××
Camshaft position sensor×
Engine coolant temperature sensor××××
Vehicle speed sensor×××
Fuel pump temperature sensor××
Accelerator pedal position sensor 1××
Accelerator pedal position sensor 2××
Fuel rail pressure sensor××
Mass air flow sensor××
Intake air temperature sensor×
Turbocharger boost sensor×××
Battery voltage××
Park/neutral position (PNP) switch×
Power steering pressure switch×
Stop lamp switch×
Barometric pressure sensor (built-into ECM)××
Fuel injector adjustment resistor×
ASCD steering switch××
ASCD brake switch××
ASCD clutch switch××
OUTPUTFuel pump×××
Fuel injector×××
Glow relay××
Cooling fan relay×××
EGR volume control valve××
Freeze frame data item Description
DIAG TROUBLE CODE
[PXXXX]

The engine control component part/control system has a trouble code, it is displayed as “PXXXX”.
(Refer to EC-1351, "
INDEX FOR DTC" .)
CAL/LD VALUE [%]

The calculated load value at the moment a malfunction is detected is displayed.
COOLANT TEMP [°C] or
[°F]

The engine coolant temperature at the moment a malfunction is detected is displayed.
ENGINE SPEED [rpm]

The engine speed at the moment a malfunction is detected is displayed.
VEHICL SPEED [km/h] or
[mph]

The vehicle speed at the moment a malfunction is detected is displayed.
INT MANI PRES [kPa]

The intake manifold pressure at the moment a malfunction is detected is displayed.

EC-1408
[YD (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS

DATA MONITOR MODE
MONITOR ITEMECM
INPUT
SIGNALMAIN
SIG-
NALSCONDITION SPECIFICATION
CKPS·RPM (TDC) [rpm]××

The engine speed computed from the
crankshaft position sensor signal is dis-
played.
COOLAN TEMP/S
[°C] or [°F]××

The engine coolant temperature (deter-
mined by the signal voltage of the engine
coolant temperature sensor) is displayed.When the engine coolant temper-
ature circuit is open or short, ECM
enters fail-safe mode. The engine
coolant temperature determined
by the ECM is displayed.
VHCL SPEED SE
[km/h] or [mph]××

The vehicle speed computed form the
vehicle speed sensor signal is displayed.
FUEL TEMP SEN
[°C] or [°F]××

The fuel temperature (determined by the
signal voltage of the fuel pump tempera-
ture sensor) is displayed.
ACCEL POS SEN [V]××

The accelerator pedal position sensor 1
signal voltage is displayed.These signals are converted by
ECM internally. Thus, they differ
from ECM terminals voltage.
ACCEL SEN 2 [V]××

The accelerator pedal position sensor 2
signal voltage is displayed.
ACT CR PRESS [MPa]××

The Fuel rail pressure (determined by the
signal voltage of the fuel rail pressure
sensor) is displayed.
BATTERY VOLT [V]××

The power supply voltage of ECM is dis-
played.
P/N POSI SW [ON/OFF]××

Indicates [ON/OFF] condition from the
park/neutral position switch signal.
START SIGNAL [ON/OFF]××

indicates [ON/OFF] condition from the
starter signal.
PW/ST SIGNAL [ON/OFF]×

indicates [ON/OFF] condition from the
power steering pressure switch signal.
BRAKE SW [ON/OFF]××

indicates [ON/OFF] condition from the
stop lamp switch signal.
BRAKE SW2 [ON/OFF]××

indicates [ON/OFF] condition from the
ASCD brake switch and ASCD clutch
switch signal.
IGN SW [ON/OFF]××

Indicates [ON/OFF] condition from igni-
tion switch signal.
MAS AIR/FL SE [V]××

The signal voltage of the mass air flow
sensor is displayed.
MAIN INJ WID [msec]×

Indicates the actual fuel injection pulse
width compensated by ECM according to
the input signals.
PUMP CURRENT [mA]×

Indicates the fuel pump power supply
current from the ECM.
GLOW RLY [ON/OFF]×

The glow relay control condition (deter-
mined by ECM according to the input sig-
nal) is displayed.
COOLING FAN
[LOW/HI/OFF]×

Indicates the control condition of the
cooling fans (determined by ECM
according to the input signal).
LOW ... Operates at low speed.
HI ... Operates at high speed.
OFF ... Stopped

EC-1410
[YD (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS

*:Leaving cooling fan OFF with CONSULT-II while engine is running may cause the engine to overheat.
REAL TIME DIAGNOSIS IN DATA MONITOR MODE
CONSULT-II has two kinds of triggers and they can be selected by touching “SETTING” in “DATA MONITOR”
mode.
1. “AUTO TRIG” (Automatic trigger):
–The malfunction will be identified on the CONSULT-II screen in
real time.
In other words, DTC will be displayed if the malfunction is
detected by ECM.
At the moment a malfunction is detected by ECM, “MONITOR”
in “DATA MONITOR” screen is changed to “Recording Data ...
xx%” as shown in the figure, and the data after the malfunction
detection is recorded. Then when the percentage reached
100%, “REAL-TIME DIAG” screen is displayed. If “STOP” is
touched on the screen during “ Recording Data ... xx%”, “REAL-
TIME DIAG” screen is also displayed.
The recording time after the malfunction detection and the recording speed can be changed by “TRIG-
GER POINT” and “Recording Speed”. Refer to CONSULT-II OPERATION MANUAL.
2. “MANU TRIG” (Manual trigger):
–DTC will not be displayed automatically on CONSULT-II screen
even though a malfunction is detected by ECM.
DATA MONITOR can be performed continuously even though a
malfunction is detected.
Use these triggers as follows:
1. “AUTO TRIG”
–While trying to detect the DTC by performing the DTC Confirma-
tion Procedure, be sure to select to “DATA MONITOR (AUTO
TRIG)” mode. You can confirm the malfunction at the moment it
is detected.
–While narrowing down the possible causes, CONSULT-II should be set in “DATA MONITOR (AUTO
TRIG)” mode, especially in case the incident is intermittent.
When you are inspecting the circuit by gently shaking (or twisting) the suspicious connectors, components
and harness in the DTC Confirmation Procedure, the moment a malfunction is found the DTC will be dis-
played. Refer to GI-23, "
How to Perform Efficient Diagnosis for an Electrical Incident" , “INCIDENT SIMU-
LATION TESTS”.
2. “MANU TRIG”
ENG COOLANT
TEMP

Engine: Return to the original
trouble condition

Change the engine coolant tem-
perature using CONSULT-II.If trouble symptom disappears, see
CHECK ITEM.

Harness and connectors

Engine coolant temperature sen-
sor

Fuel injector
GLOW RLY

Ignition switch: ON (Engine
stopped)

Turn the glow relay ON and OFF
using CONSULT-II and listen to
operating sound.Glow relay makes the operating
sound.
Harness and connector

Glow relay
EGR VOL CONT/
V

Ignition switch: ON

Change EGR volume control
valve opening step using CON-
SULT-II.EGR volume control valve makes
an operating sound.
Harness and connector

EGR volume control valve
PRES REGULA-
TOR

Ignition switch: ON

Change fuel rail pressure using
CONSULT-IIFuel leaks.
Fuel line

Fuel pressure relief valve
PUMP LEANT
CLEAR

This mode is used for performing Fuel Pump Learning Value Clearing. Refer to EC-1370, "Fuel Pump Learning
Value Clearing" . TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY)
PBIB0480E
SEF707X

DTC P0117, P0118 ECT SENSOR
EC-1449
[YD (WITHOUT EURO-OBD)]
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DTC P0117, P0118 ECT SENSORPFP:22630
DescriptionEBS011YW
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 measured between ECM terminal 51 (Engine
coolant temperature sensor) 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 LogicEBS011YX
The MI will not light up for these self-diagnoses.
DTC Confirmation ProcedureEBS011YY
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.
SEF594K
Engine coolant tempera-
ture °C (°F)Voltage* (V) Resistance (kΩ)
−10 (14) 4.7 7.0 - 11.4
20 (68) 3.8 2.1 - 2.9
50 (122) 2.6 0.68 - 1.00
90 (194) 1.3 0.236 - 0.260
SEF012P
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0117
0117Engine coolant tempera-
ture sensor circuit low
inputAn excessively low voltage from the sensor is
sent to ECM.

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

Engine coolant temperature sensor P0118
0118Engine coolant tempera-
ture sensor circuit high
inputAn excessively high voltage from the sensor is
sent to ECM.

DTC P0117, P0118 ECT SENSOR
EC-1453
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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-1454, "
Component Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Replace engine coolant temperature sensor.
5. CHECK INTERMITTENT INCIDENT
Refer to EC-1414, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
PBIB1892E
Voltage: Approximately 5.3V
PBIB0152E
Continuity should exist.

EC-1454
[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-209, "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