2005 NISSAN X-TRAIL Cam position sensor

EC-906
[QR (WITHOUT EURO-OBD)]
FUEL PUMP CIRCUIT

FUEL PUMP CIRCUITPFP:17042
DescriptionEBS0114O
SYSTEM DESCRIPTION
*: ECM determines the start signal status by the signals of engine speed and battery voltage.
The ECM activates the fuel pump for several seconds after the ignition switch is turned ON to improve engine
startability. If the ECM receives a engine speed signal from the crankshaft position sensor (POS) and cam-
shaft position sensor (PHASE), it knows that the engine is rotating, and causes the pump to operate. If the
engine speed signal is not received when the ignition switch is ON, the engine stalls. The ECM stops pump
operation and prevents battery discharging, thereby improving safety. The ECM does not directly drive the fuel
pump. It controls the ON/OFF fuel pump relay, which in turn controls the fuel pump.
COMPONENT DESCRIPTION
A turbine type design fuel pump is used in the fuel tank.
CONSULT-II Reference Value in Data Monitor ModeEBS0114P
Specification data are reference values.
Sensor Input Signal to ECM ECM Function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed*
Fuel pump control Fuel pump relay
Battery Battery voltage*
Condition Fuel pump operation
Ignition switch is turned to ON Operates for 1 second
Engine running and crankingOperates
When engine is stoppedStops in 1.5 seconds
Except as shown aboveStops
PBIB0513E
MONITOR ITEM CONDITION SPECIFICATION
FUEL PUMP RLY

For 1 second after turning ignition switch ON

Engine running or crankingON

Except above conditions OFF

EC-972
[QR (WITHOUT EURO-OBD)]
SERVICE DATA AND SPECIFICATIONS (SDS)

Camshaft Position Sensor (PHASE)EBS0115H
Refer to EC-708, "Component Inspection" .
Throttle Control MotorEBS0115I
InjectorEBS0115J
Fuel PumpEBS0115K
Resistance [at 25°C (77°F)] Approximately 1 - 15Ω
Resistance [at 10 - 60°C (50 - 140°F)] 13.5 - 17.5Ω
Resistance [at 25°C (77°F)] Approximately 0.2 - 5.0Ω

EC-980
[YD (WITH 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-1027, "
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-986
[YD (WITH EURO-OBD)]
ENGINE CONTROL SYSTEM

System ChartEBS0116V
*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 SystemEBS0116W
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

TROUBLE DIAGNOSIS
EC-1011
[YD (WITH EURO-OBD)]
C
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EC

Priority Detected items (DTC)
1

U1000 CAN communication line

P0016 Crankshaft position - camshaft position correlation

P0101 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

P0045 Turbocharger boost control solenoid valve

P0089 P0628 P0629 P1272 - P1275 Fuel pump

P0200 - P0204 P1268 - P1271 P2146 - P2149 Fuel injector

P0380 Glow relay

P0404 EGR volume control valve

P0686 ECM relay

P1212 TCS communication line
3

P0088 P0093 Fuel system

P0217 Engine over temperature (OVERHEAT)

P0234 Turbocharger system

P0401 EGR function

P0501 P0502 P0503 ASCD vehicle speed sensor

P0504 ASCD brake switch

P0580 P0581 ASCD steering switch

P1211 TCS control unit

TROUBLE DIAGNOSIS
EC-1017
[YD (WITH EURO-OBD)]
C
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EC

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-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

TROUBLE DIAGNOSIS
EC-1019
[YD (WITH EURO-OBD)]
C
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EC

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

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