2005 NISSAN X-TRAIL Cam position sensor

EC-1356
[YD (WITHOUT EURO-OBD)]
PRECAUTIONS


Do not disassemble ECM.

When connecting ECM harness connector, fasten it
securely with levers as far as they will go as shown in the
figure.

When connecting or disconnecting pin connectors into or
from ECM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on ECM
pin terminal, when connecting pin connectors.

Securely connect ECM harness connectors.
A poor connection can cause an extremely high (surge)
voltage to develop in coil and condenser, thus resulting in
damage to IC's.

Keep engine control system harness at least 10cm (4 in)
away from adjacent harness, to prevent engine control sys-
tem malfunctions due to receiving external noise, degraded
operation of IC's, etc.

Keep engine control system parts and harness dry.

Before replacing ECM, perform ECM Terminals and Refer-
ence Value inspection and make sure ECM functions prop-
erly. Refer to EC-1398, "
ECM Terminals And Reference
Va l u e" .

Handle mass air flow sensor carefully to avoid damage.

Do not disassemble mass air flow sensor.

Do not clean mass air flow sensor with any type of deter-
gent.

Even a slight leak in the air intake system can cause seri-
ous incidents.

Do not shock or jar the camshaft position sensor, crank-
shaft position sensor.
MBIB0625E
PBIB1512E
SEF291H
MEF040D

EC-1362
[YD (WITHOUT EURO-OBD)]
ENGINE CONTROL SYSTEM

System ChartEBS011WZ
*1: The input signal is sent to the ECM through CAN communication line.
*2: The output signal is sent from the ECM through CAN communication line.
Fuel Injection Control SystemEBS011X0
SYSTEM DESCRIPTION
Three types of fuel injection control are provided to accommodate engine operating conditions; normal control,
idle control and start control. The ECM determines the appropriate fuel injection control. Under each control,
the amount of fuel injected is adjusted to improve engine performance.
Pulse signals are sent to fuel injectors according to the input signals to adjust the amount of fuel injected to
preset value.
START CONTROL
Input/Output Signal Chart
When the ECM receives a start signal from the ignition switch, the
ECM adapts the fuel injection system for the start control. The
amount of fuel injected at engine starting is a preset program value
in the ECM. The program is determined by the engine speed, engine
coolant temperature and fuel rail pressure.
For better startability under cool engine conditions, the lower the
coolant temperature becomes, the greater the amount of fuel
injected. The ECM ends the start control when the engine speed
reaches the specific value, and shifts the control to the normal or idle
control.
Input (Sensor) ECM Function Output (Actuator)

Accelerator pedal position sensor

Fuel rail pressure sensor

Fuel pump temperature sensor

Engine coolant temperature sensor

Mass air flow sensor

Intake air temperature sensor

Crankshaft position sensor

Camshaft position sensor

Turbocharger boost sensor

Vehicle speed sensor*1

ESP/TCS/ABS control unit*1

Ignition switch

Stop lamp switch

Air conditioner switch*1

Park/neutral position switch

Battery voltage

Fuel level switch

Power steering pressure switch Fuel injection control Fuel injector and Fuel pump
Fuel injection timing control Fuel injector and Fuel pump
Fuel cut control Fuel injector and Fuel pump
Glow control system
Glow relay and glow indicator lamp*
2
On board diagnostic system
Malfunction indicator (MI)*2
EGR volume control EGR volume control valve
Cooling fan control Cooling fan relay
Turbocharger boost controlTurbocharger boost control solenoid
valve
Fuel transport pump control Fuel transport pump relay
Air conditioning cut control Air conditioner relay
Sensor Input Signal to ECM ECM Function Actuator
Engine coolant temperature sensor Engine coolant temperature
Fuel injection
control (start
control)Fuel injector
Fuel pump Crankshaft position sensor Engine speed
Camshaft position sensor Piston position
Ignition switch Start signal
Fuel rail pressure sensor Fuel rail pressure
SEF648S

EC-1382
[YD (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS

Basic InspectionEBS011XF
Precaution:
Perform Basic Inspection without electrical or mechanical loads applied;

Headlamp switch is OFF.

On vehicles equipped with daytime light systems, set lighting switch to the 1st position to light
only small lamps.

Air conditioner switch is OFF.

Rear defogger switch is OFF.

Steering wheel is in the straight-ahead position, etc.
Priority Detected items (DTC)
1

U1000 CAN communication line

P0016 Crankshaft position - camshaft position correlation

P0102 P0103 Mass air flow sensor

P0112 P0113 Intake air temperature sensor

P0117 P0118 Engine coolant temperature sensor

P0122 P0123 P0222 P0223 P2135 Accelerator pedal position sensor

P0182 P0183 Fuel pump temperature sensor

P0192 P0193 Fuel rail pressure sensor

P0237 P0238 Turbocharger boost sensor

P0335 P0336 Crankshaft position sensor

P0340 P0341 Camshaft position sensor

P0563 Battery voltage

P0605 P0606 ECM

P0642 P0643 P0652 P0653 Sensor power supply

P1260 - P1267 Fuel injector adjustment resistor

P1610 - P1617 NATS

P2228 P2229 Barometric pressure sensor
2

P0089 P0628 P0629 P1272 - P1275 Fuel pump

P0200 - P0204 P1268 - P1271 P2146 - P2149 Fuel injector

P0686 ECM relay

P1212 TCS communication line
3

P0088 P0093 Fuel system

P0217 Engine over temperature (OVERHEAT)

P0234 Turbocharger system

P0501 P0502 P0503 ASCD vehicle speed sensor

P0504 ASCD brake switch

P0580 P0581 ASCD steering switch

P1211 TCS control unit

EC-1388
[YD (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS

1 - 5: The numbers refer to the order of inspection.
(continued on next page)
ENGINE CONTROL
Crankshaft position sensor circuit 1 1 1 1 1 1 1 1 1 1EC-1512
Camshaft position sensor circuit 3 3EC-1525
Turbocharger boost sensor circuit 1 1 1EC-1659
Turbocharger boost control solenoid
valve circuit111EC-1659
Start signal circuit 1 1 1 1 1 1 1 1 1EC-1696
Ignition switch circuit 1 1 1 1EC-1415
Power supply for ECM circuit 1 1 1 1EC-1415
Cooling fan relay circuitEC-1480
EGR volume control valve circuit 1 1 1EC-1651
Glow relay circuit 1 1 1 1EC-1643
ECM relay (Self-shutoff) circuit 1 1 1 1EC-1584
ECM, connector circuit 2 2 2 2 2 2 2 2 2 2 2 2 2EC-1566,
EC-1641
NATS (Nissan Anti-theft System) 1EC-1373
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

EC-1390
[YD (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS

1 - 5: The numbers refer to the order of inspection.
ENGINE CONTROLCrankshaft position sensor circuit 1 1 1 1EC-1512
Camshaft position sensor circuit11EC-1525
Turbocharger boost sensor circuit 1 1EC-1506
Turbocharger boost control solenoid valve cir-
cuit11EC-1659
Start signal circuitEC-1696
Ignition switch circuitEC-1415
Power supply for ECM circuit11EC-1415
Cooling fan relay circuit 2EC-1480
EGR volume control valve circuit 1EC-1651
Glow relay circuit1EC-1643
ECM relay (Self-shutoff) circuit1EC-1584
ECM, connector circuit22222222222EC-1566,EC-
1641
NATS (Nissan Anti-theft System)1EC-1373
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

TROUBLE DIAGNOSIS
EC-1401
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
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K
L
MA
EC

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

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)]
C
D
E
F
G
H
I
J
K
L
MA
EC
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)