2003 NISSAN X-TRAIL sensor

TROUBLE DIAGNOSIS
EC-677
[YD]
C
D
E
F
G
H
I
J
K
L
MA
EC
1 - 5: The numbers refer to the order of inspection.
(continued on next page)
ENGINE CONTROL
Camshaft position sensor circuit 3 3EC-739
Start signal circuit 1 1 1 1 1 1 1 1 1EC-818
Ignition switch circuit 1 1 1 1EC-700
Power supply for ECM circuit 1 1 1 1EC-700
Cooling fan relay circuitEC-761
EGR volume control valve circuit 1 1 1EC-803
Glow relay circuit 1 1 1 1EC-796
ECM relay (Self-shutoff) circuit 1 1 1 1EC-790
ECM,connectorcircuit 2222222222222EC-749,
EC-788
Air conditioner relay circuit 1 1EC-824
Air conditioner switch circuitEC-824
NATS (Nissan Anti-theft System) 1EC-666
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-678
[YD]
TROUBLE DIAGNOSIS
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. CanbedetectedbyCONSULT-II?
BLACK SMOKE WHITE SMOKE
Warranty symptom code AG AH AJ AK AL AM AP HA
Fuel supply pump 5 5 5 5 1 1 —
Fuelinjector 33344411EC-727
EDU (Electronic drive unit) 4 4 4 5 5 5 1 1EC-754
Glow system1EC-796
Engine body 3 3 3 3 1 3EM-102
EGR system3EC-803
Air cleaner and duct3MA-31
Fuel pressure relief valveEC-665
ENGINE CONTROL
Suction control valve circuit 4 4 4 4 1 1EC-772
Fuel injector circuit 1 1 1 1 1 1 1 1EC-727
EDU circuit 2 2 2 2 2 2 1 1EC-754
Mass air flow sensor circuit 1 1 1EC-706
Engine coolant temperature circuit 1 1 1 1 1EC-711
Vehicle speed sensor circuit11EC-744
Accelerator pedal position sensor circuit 1 1 1EC-715
Accelerator pedal released position switch
circuit11EC-783
Common rail fuel pressure sensor
circuit11EC-723
Crankshaft position sensor (TDC)
circuit11 11EC-734

TROUBLE DIAGNOSIS
EC-679
[YD]
C
D
E
F
G
H
I
J
K
L
MA
EC
1 - 5: The numbers refer to the order of inspection.
(continued on next page)
ENGINE CONTROL
Camshaft position sensor circuitEC-739
Start signal circuitEC-818
Ignition switch circuitEC-700
Power supply for ECM circuit11EC-700
Cooling fan relay circuit 2EC-761
EGR volume control valve circuit 1EC-803
Glow relay circuit1EC-796
ECM relay (Self-shutoff) circuit1EC-790
ECM,connectorcircuit 22222222222EC-749,EC-
788
Air conditioner relay circuitEC-824
Air conditioner switch circuitEC-824
NATS (Nissan Anti-theft System)1EC-666
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-686
[YD]
TROUBLE DIAGNOSIS
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
A1
A2
A3
A4L/W
Y/PU
PU
YEDU drive No. 2
EDU drive No. 4
EDU drive No. 3
EDU drive No. 1[Engine is running]
lWarm-up condition
lIdle speed0-4V
[Engine is running]
lWarm-up condition
lEngine speed is 2,000 rpm0-4V
A5
A6
A7B
B
BECM ground[Engine is running]
lIdle speedApproximately 0V
A8
A9R
RPower supply for ECM[Ignition switch "ON"]BATTERY VOLTAGE
(11 - 14V)
A10 R Mass air flow sensor[Engine is running]
lWarm-up condition
lIdle speed0.5 - 2.5V
[Engine is running]
lWarm-up condition
lEngine speed is 2,000 rpm1.5 - 3.5V
A11 L/OREngine coolant tempera-
ture sensor[Engine is running]
lWarm-up conditionApproximately 0 - 4.8V
Output voltage varies with engine
coolant temperature
A12 PU Fuel temperature sensor[Engine is running]
lWarm-up conditionApproximately 0 - 4.8V
Output voltage varies with fuel
temperature
A21 BAccelerator pedal
released position switch
ground[Ignition switch "ON"]Approximately 0V
A22 LGAccelerator pedal position
sensor 1 ground[Ignition switch "ON"]Approximately 0V
A23 B Sensor's ground[Engine is running]
lWarm-up condition
lIdle speedApproximately 0V
PBIB0387E
PBIB0388E
PBIB0389E
PBIB0390E

TROUBLE DIAGNOSIS
EC-687
[YD]
C
D
E
F
G
H
I
J
K
L
MA
ECA24 BMass air flow sensor
ground[Engine is running]lWarm-up condition
lIdle speedApproximately 0V
A25 G/W Injector's ground[Engine is running]
lWarm-up condition
lIdle speedApproximately 0V
A26 LG/RAccelerator pedal position
sensor 2 ground[Ignition switch "ON"]Approximately 0V
A27 W Sensor's power supply[Ignition switch "ON"]Approximately 5V
A28 PU/RAccelerator pedal position
sensor 1 power supply[Ignition switch "ON"]Approximately 5V
A29 W/PU EDU injector check signal[Engine is running]
lWarm-up condition
lIdle speed1-5V
[Engine is running]
lWarm-up condition
lEngine speed is 2,000 rpm1-5V
A31 W/L Power supply for ECM[Ignition switch “ON”]BATTERY VOLTAGE
(11 - 14V)
B3
B4
B5
B6W
OR/B
W/L
GYEGR volume control valve[Engine is running]
lWarm-up condition
lIdle speed0.1 - 14V
(Voltage signals of each ECM ter-
minals differ according to the con-
trol position of EGR volume
control valve.)
B9 G/BFuel injector adjustment
resistor No.2
[Ignition switch "ON"]0.2 - 4.8V
(There are individual differences
between fuel injector adjustment
resistors.) B10 Y/BFuel injector adjustment
resistor No.4
B11 R/BFuel injector adjustment
resistor No.3
B12 W/BFuel injector adjustment
resistor No.1
B13
B14Y/R
Y/RCommon rail fuel pressure
sensor[Engine is running]
lWarm-up condition
lIdle speed1.6 - 1.8V
[Engine is running]
lWarm-up condition
lEngine speed is 2,000 rpm1.8 - 2.0V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
PBIB0391E
PBIB0392E

EC-688
[YD]
TROUBLE DIAGNOSIS
B15 WAccelerator pedal position
sensor 1[Ignition switch "ON"]lAccelerator pedal fully released0.8 - 1.3V
[Ignition switch "ON"]
lAccelerator pedal fully depressedMore than 3.5V
B16 GAccelerator pedal position
sensor 2[Ignition switch "ON"]
lAccelerator pedal fully released0.3 - 1.8V
[Ignition switch "ON"]
lAccelerator pedal fully depressedMore than 3.0V
B18 R/GCamshaft position sensor
ground[Engine is running]
lWarm-up condition
lIdle speedApproximately 0V
B19 R/Y Camshaft position sensor[Engine is running]
lWarm-up condition
lIdle speed0-3V
[Engine is running]
lWarm-up condition
lEngine speed is 2,000 rpm0-8V
B20 L/RCrankshaft position sen-
sor (TDC) ground[Engine is running]
lWarm-up condition
lIdle speedApproximately 0V
B21 L/GCrankshaft position sen-
sor (TDC)[Engine is running]
lWarm-up condition
lIdle speed0-12.5V
[Engine is running]
lWarm-up condition
lEngine speed is 2,000 rpm0-30.0V
B23 GY/LAccelerator pedal position
sensor 2 power supply[Ignition switch “ON”]Approximately 5V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
PBIB0393E
PBIB0394E
PBIB0395E
PBIB0396E

TROUBLE DIAGNOSIS
EC-691
[YD]
C
D
E
F
G
H
I
J
K
L
MA
EC
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
CONSULT-II FunctionEBS0037H
CONSULT-II INSPECTION PROCEDURE
1. Turn ignition switch OFF.
2. Connect CONSULT-II to data link connector, which is located
under the driver side dash panel.
E12 P/BPower steering oil pres-
sure switch[Engine is running]lSteering wheel is being turnedApproximately 0V
[Engine is running]
lSteering wheel is not being turnedBATTERY VOLTAGE
(11 - 14V)
E13 G/ORPark/Neutral position
switch[Ignition switch “ON”]
lGear position is "Neutral"Approximately 0V
[Ignition switch “ON”]
lExcept the above gear positionBATTERY VOLTAGE
(11 - 14V)
E16 G/W Suction control valve 2[Engine is running]
lWarm-up condition
lIdle speed0-12.5V
[Engine is running]
lWarm-up condition
lEngine speed is 2,000 rpm0-12.5V
E21 L/B Vehicle speed sensor[Engine is running]
lLift up the vehicle
lIn 2nd gear position
lVehicle speed is 30 km/h (19 MPH)0-5V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
PBIB0401E
PBIB0402E
PBIB0386E
PBIB0376E

EC-692
[YD]
TROUBLE DIAGNOSIS
3. Turn ignition switch ON.
4. Touch “START”.
5. Touch “ENGINE”.
6. Perform each diagnostic test mode according to each service
procedure.
For further information, see the CONSULT-II Operation Manual.
ENGINE CONTROL COMPONENT PARTS/CONTROL SYSTEMS APPLICATION
X: Applicable
SEF995X
PBIB0410E
ItemDIAGNOSTIC TEST MODE
SELF-DIAG
RESULTSDATA MONI-
TO RACTIVE
TEST
ENGINE CONTROL COMPONENT PARTS
INPUTCrankshaft position sensor (TDC)´´
Camshaft position sensor´
Engine coolant temperature sensor´´
Vehicle speed sensor´´
Fuel temperature sensor´´
Accelerator pedal position sensor 1´´
Accelerator pedal position sensor 2´´
Accelerator pedal released position switch´´
Common rail fuel pressure sensor´´
Park/neutral position (PNP) switch´
Mass air flow sensor´´
Battery voltage´´
Power steering oil pressure switch´
Stop lamp switch´
Absolute pressure sensor´´
Fuel injector adjustment resistor´
OUTPUTSuction control valve´´´
Fuel injector´´´
Glow relay´´
Cooling fan relay´´´
EGR volume control valve´´