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![NISSAN X-TRAIL 2005 Service Repair Manual TROUBLE DIAGNOSIS
EC-1017
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1 - 5: The numbers refer to the order of inspection.
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ENGINE CONTROL
Crankshaft position sensor circu](/manual-img/5/57403/w960_57403-1420.png "NISSAN X-TRAIL 2005 Service Repair Manual TROUBLE DIAGNOSIS
EC-1017
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1 - 5: The numbers refer to the order of inspection.
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ENGINE CONTROL
Crankshaft position sensor circu")
TROUBLE DIAGNOSIS
EC-1017
[YD (WITH EURO-OBD)]
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ENGINE CONTROL
Crankshaft position sensor circuit 1 1 1 1 1 1 1 1 1 1EC-1157
Camshaft position sensor circuit 3 3EC-1169
Turbocharger boost sensor circuit 1 1 1EC-1151
Turbocharger boost control solenoid
valve circuit111EC-1061
Start signal circuit 1 1 1 1 1 1 1 1 1EC-1345
Ignition switch circuit 1 1 1 1EC-1046
Power supply for ECM circuit 1 1 1 1EC-1046
Cooling fan relay circuitEC-1124
EGR volume control valve circuit 1 1 1EC-1193
Glow relay circuit 1 1 1 1EC-1182
ECM relay (Self-shutoff) circuit 1 1 1 1EC-1245
ECM, connector circuit 2222222222222EC-1227,
EC-1303
NATS (Nissan Anti-theft System) 1EC-1001
SYSTEM — Basic engine control systemSYMPTOM
Reference page
HARD/NO START/RESTART (EXCP. HA) ENGINE STALL HESITATION/SURGING/FLAT SPOT KNOCK/DETONATION
LACK OF POWER POOR ACCELERATION HI IDLE LOW IDLE
NO START (with first firing) NO START (without first firing) HARD TO START WHEN ENGINE IS COLD HARD TO START WHEN ENGINE IS HOT
AT I D L E DURING DRIVING WHEN DECELERATING
Warranty symptom code AA AB AC AD AE AF
Page 1423 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual TROUBLE DIAGNOSIS
EC-1019
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1 - 5: The numbers refer to the order of inspection.
ENGINE CONTROLCrankshaft position sensor circuit 1 1 1 1EC-1157
Camshaft](/manual-img/5/57403/w960_57403-1422.png "NISSAN X-TRAIL 2005 Service Repair Manual TROUBLE DIAGNOSIS
EC-1019
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1 - 5: The numbers refer to the order of inspection.
ENGINE CONTROLCrankshaft position sensor circuit 1 1 1 1EC-1157
Camshaft")
TROUBLE DIAGNOSIS
EC-1019
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1 - 5: The numbers refer to the order of inspection.
ENGINE CONTROLCrankshaft position sensor circuit 1 1 1 1EC-1157
Camshaft position sensor circuit11EC-1169
Turbocharger boost sensor circuit 1 1EC-1151
Turbocharger boost control solenoid valve cir-
cuit11EC-1061
Start signal circuitEC-1345
Ignition switch circuitEC-1046
Power supply for ECM circuit11EC-1046
Cooling fan relay circuit 2EC-1124
EGR volume control valve circuit 1EC-1193
Glow relay circuit1EC-1182
ECM relay (Self-shutoff) circuit1EC-1245
ECM, connector circuit 2 2 2 2 2 2 2 2 2 2 2EC-1227,EC-
1303
NATS (Nissan Anti-theft System)1EC-1001
SYSTEM — Basic engine control systemSYMPTOM
Reference page
ROUGH IDLE/HUNTING IDLING VIBRATION
SLOW/NO RETURN TO IDLE OVERHEAT/HIGH ENGINE COOLANT TEMPERATURE EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION ABNORMAL SMOKE COLOR DEAD BATTERY (UNDER CHARGE) Malfunction indicator illuminates. Can be detected by CONSULT-II?
BLACK SMOKE WHITE SMOKE
Warranty symptom code AG AH AJ AK AL AM AP HA
Page 1432 of 4555
EC-1028
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
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
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![NISSAN X-TRAIL 2005 Service Repair Manual TROUBLE DIAGNOSIS
EC-1029
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14 W/PU Fuel level switch[Ignition switch ON]Some fuel is in the fuel tankApproximately 0V
[Ignition switch ON]
No fuel is i](/manual-img/5/57403/w960_57403-1432.png "NISSAN X-TRAIL 2005 Service Repair Manual TROUBLE DIAGNOSIS
EC-1029
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14 W/PU Fuel level switch[Ignition switch ON]Some fuel is in the fuel tankApproximately 0V
[Ignition switch ON]
No fuel is i")
TROUBLE DIAGNOSIS
EC-1029
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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
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![NISSAN X-TRAIL 2005 Service Repair Manual EC-1030
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
36 LG Cooling fan relay (Low)[Engine is running]
Cooling fan is not operating
Cooling fan is operating at high speedBATTERY VOLTAGE
(11 - 14V)
[Engin](/manual-img/5/57403/w960_57403-1433.png "NISSAN X-TRAIL 2005 Service Repair Manual EC-1030
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
36 LG Cooling fan relay (Low)[Engine is running]
Cooling fan is not operating
Cooling fan is operating at high speedBATTERY VOLTAGE
(11 - 14V)
[Engin")
EC-1030
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
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
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EC-1031
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47 G/R Camshaft position sensor[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on](/manual-img/5/57403/w960_57403-1434.png "NISSAN X-TRAIL 2005 Service Repair Manual TROUBLE DIAGNOSIS
EC-1031
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47 G/R Camshaft position sensor[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on")
TROUBLE DIAGNOSIS
EC-1031
[YD (WITH EURO-OBD)]
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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 1436 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual EC-1032
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
63 WFuel rail pressure sensor
power supply[Ignition switch ON]Approximately 5.3V
64 WTurbocharger boost sensor
power supply[Ignition switch ON]Approx](/manual-img/5/57403/w960_57403-1435.png "NISSAN X-TRAIL 2005 Service Repair Manual EC-1032
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
63 WFuel rail pressure sensor
power supply[Ignition switch ON]Approximately 5.3V
64 WTurbocharger boost sensor
power supply[Ignition switch ON]Approx")
EC-1032
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
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)
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EC-1033
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85 —Sensor ground
(Accelerator pedal posi-
tion sensor shield circuit)[Engine is running]Warm-up condition
Idle speedAppro](/manual-img/5/57403/w960_57403-1436.png "NISSAN X-TRAIL 2005 Service Repair Manual TROUBLE DIAGNOSIS
EC-1033
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85 —Sensor ground
(Accelerator pedal posi-
tion sensor shield circuit)[Engine is running]Warm-up condition
Idle speedAppro")
TROUBLE DIAGNOSIS
EC-1033
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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 or GST 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 OFF]
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)
![NISSAN X-TRAIL 2005 Service Repair Manual EC-1028
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
1
2
3B
B
BECM ground[Engine is running]
Warm-up condition
Idle speedAppro](/manual-img/5/57403/w960_57403-1431.png "NISSAN X-TRAIL 2005 Service Repair Manual EC-1028
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
1
2
3B
B
BECM ground[Engine is running]
Warm-up condition
Idle speedAppro")