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TROUBLE DIAGNOSIS
EC-1397
[YD (WITHOUT EURO-OBD)]
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TBWB0474E
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EC-1398
[YD (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
ECM Harness Connector Terminal LayoutEBS011XJ
ECM Terminals And Reference ValueEBS01FD9
PREPARATION
1. ECM is located behind the glove box. For this inspection,
remove glove box.
2. Remove ECM harness protector.
3. When disconnecting ECM harness connector, loosen it with
levers as far as they will go as shown in the figure.
4. Connect a break-out box (SST) and Y-cable adapter (SST)
between the ECM and ECM harness connector.
Use extreme care not to touch 2 pins at one time.
Data is for comparison and may not be exact.
ECM INSPECTION TABLE
Remarks: Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
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.
MBIB0045E
PBIB1899E
PBIB1512E
Page 1803 of 4555
TROUBLE DIAGNOSIS
EC-1399
[YD (WITHOUT EURO-OBD)]
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TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
1
2
3B
B
BECM ground[Engine is running]
Warm-up condition
Idle speedApproximately 0V
4
5W/B
G/BFuel injector power supply
(For cylinder No. 1 and 4)
Fuel injector power supply
(For cylinder No. 2 and 3)[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle.5 - 10V
[Engine is running]
Warm-up condition
Engine speed is 2,000 rpm5 - 10V
6LTurbocharger boost control
solenoid valve[Ignition switch ON]
Warm-up condition
Idle speed0 - 12.5V
[Ignition switch ON]
Warm-up condition
Engine speed is 2,000 rpm0 - 12.5V
10 Y/L Fuel pump power supply[Engine is running]
Warm-up condition
Idle speed0 - 12.5V
[Engine is running]
Warm-up condition
Engine speed is 2,000 rpm0 - 12.5V
MBIB0883E
MBIB0884E
MBIB0889E
MBIB0890E
MBIB0885E
MBIB0886E
Page 1804 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual EC-1400
[YD (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
14 W/PU Fuel level switch[Ignition switch ON]Some fuel is in the fuel tankApproximately 0V
[Ignition switch ON]
No fuel is in the fuel tankBATTERY NISSAN X-TRAIL 2005 Service Repair Manual EC-1400
[YD (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
14 W/PU Fuel level switch[Ignition switch ON]Some fuel is in the fuel tankApproximately 0V
[Ignition switch ON]
No fuel is in the fuel tankBATTERY](/manual-img/5/57403/w960_57403-1803.png)
EC-1400
[YD (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
14 W/PU Fuel level switch[Ignition switch ON]Some fuel is in the fuel tankApproximately 0V
[Ignition switch ON]
No fuel is in the fuel tankBATTERY VOLTAGE
(11 - 14V)
19 L Air conditioner relay[Engine is running]
Air conditioner switch is OFFBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Both air conditioner switch and blower fan
switch are ON (Compressor is operating)Approximately 0.1V
21
22
23
24G/R
GY/L
G/R
GY/LFuel injector No. 2
Fuel injector No. 2
Fuel injector No. 3
Fuel injector No. 3[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle.0 - 9V
[Engine is running]
Warm-up condition
Engine speed is 2,000 rpm0 - 9V
25
26
27
28GY
W/L
OR/B
GY/BEGR volume control valve[Engine is running]
Warm-up condition
Idle speed0.1 - 14V
(Voltage signals of each ECM ter-
minals differ according to the con-
trol position of EGR volume
control valve.)
29 L Fuel pump[Engine is running]
Warm-up condition
Idle speed0.5 - 1.0V
[Engine is running]
Warm-up condition
Engine speed is 2,000 rpm0.5 - 1.0V
34 LG/B Cooling fan relay (High)[Engine is running]
Cooling fan is not operating
Cooling fan is operating at low speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Cooling fan is operating at high speedApproximately 0.1V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
MBIB0881E
MBIB0882E
MBIB0887E
MBIB0888E
Page 1805 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual TROUBLE DIAGNOSIS
EC-1401
[YD (WITHOUT EURO-OBD)]
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36 LG Cooling fan relay (Low)[Engine is running]
Cooling fan is not operating
Cooling fan is operating at high speedBATT NISSAN X-TRAIL 2005 Service Repair Manual TROUBLE DIAGNOSIS
EC-1401
[YD (WITHOUT EURO-OBD)]
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36 LG Cooling fan relay (Low)[Engine is running]
Cooling fan is not operating
Cooling fan is operating at high speedBATT](/manual-img/5/57403/w960_57403-1804.png)
TROUBLE DIAGNOSIS
EC-1401
[YD (WITHOUT EURO-OBD)]
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36 LG Cooling fan relay (Low)[Engine is running]
Cooling fan is not operating
Cooling fan is operating at high speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Cooling fan is operating at low speedApproximately 0.1V
37 W/R Glow relay Refer to EC-1305, "
GLOW CONTROL SYSTEM" .
39 B/OR Fuel transport pump relay[Engine is running]
Some fuel is in the fuel tankApproximately 0V
[Engine is running]
No fuel is in the fuel tankBATTERY VOLTAGE
(11 - 14V)
40
41
42
43G/R
GY/L
G/R
GY/LFuel injector No. 4
Fuel injector No. 4
Fuel injector No. 1
Fuel injector No. 1[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle.0 - 9V
[Engine is running]
Warm-up condition
Engine speed is 2,000 rpm0 - 9V
44 L/WCrankshaft position sen-
sor power supply[Ignition switch ON]Approximately 5.3V
45 G/ORCamshaft position sensor
power supply[Ignition switch ON]Approximately 5.3V
46 L Crankshaft 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 TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
MBIB0881E
MBIB0882E
MBIB0879E
MBIB0880E
Page 1806 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual 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
[E NISSAN X-TRAIL 2005 Service Repair Manual 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
[E](/manual-img/5/57403/w960_57403-1805.png)
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
Page 1807 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual 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 supp NISSAN X-TRAIL 2005 Service Repair Manual TROUBLE DIAGNOSIS
EC-1403
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63 WFuel rail pressure sensor
power supply[Ignition switch ON]Approximately 5.3V
64 WTurbocharger boost sensor
power supp](/manual-img/5/57403/w960_57403-1806.png)
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)
Page 1808 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual EC-1404
[YD (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
85 —Sensor ground
(Accelerator pedal posi-
tion sensor shield circuit)[Engine is running]Warm-up condition
Idle speedApproximately 0.3V
87 GY/R NISSAN X-TRAIL 2005 Service Repair Manual EC-1404
[YD (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
85 —Sensor ground
(Accelerator pedal posi-
tion sensor shield circuit)[Engine is running]Warm-up condition
Idle speedApproximately 0.3V
87 GY/R](/manual-img/5/57403/w960_57403-1807.png)
EC-1404
[YD (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
85 —Sensor ground
(Accelerator pedal posi-
tion sensor shield circuit)[Engine is running]Warm-up condition
Idle speedApproximately 0.3V
87 GY/R CAN communication line[Ignition switch ON]Approximately 2.0 - 2.6V
Output voltage varies with the
communication status.
89 LG Data link connector[Ignition switch ON]
CONSULT-II is disconnected.Approximately 0V - Battery volt-
age (11 - 14V)
90 LAccelerator pedal position
sensor 2 power supply[Ignition switch ON]Approximately 5.3V
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[Engine is running]
Warm-up condition
Idle speedApproximately 0.3V
95 G/R CAN communication line[Ignition switch ON]Approximately 2.6 - 3.2V
Output voltage varies with the
communication status.
99 B/Y Start signal[Ignition switch ON]Approximately 0.3V
[Ignition switch START]BATTERY VOLTAGE
(11 - 14V)
100 P Stop lamp switch[Ignition switch OFF]
Brake pedal: Fully releasedApproximately 0V
[Ignition switch OFF]
Brake pedal: Slightly depressedBATTERY VOLTAGE
(11 - 14V)
101 GY/L ASCD brake switch[Ignition switch ON]
Brake pedal and clutch pedal: Fully releasedBATTERY VOLTAGE
(11 - 14V)
[Ignition switch ON]
Brake pedal and/or clutch pedal: Slightly
depressedApproximately 0V
102PU*
1
W/R*2ASCD steering switch[Ignition switch ON]
ASCD steering switch: OFFApproximately 4.3V
[Ignition switch ON]
MAIN switch: PressedApproximately 0.3V
[Ignition switch ON]
CANCEL switch: PressedApproximately 1.3V
[Ignition switch ON]
RESUME/ACCELERATE switch: PressedApproximately 3.3V
[Ignition switch ON]
SET/COAST switch: PressedApproximately 2.3V
103 B/ORASCD steering switch
ground[Engine is running]
Warm-up condition
Idle speedApproximately 0.3V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)