2001 NISSAN X-TRAIL engine control

EC-1416
[YD]
TROUBLE DIAGNOSIS
Symptom Matrix Chart
EBS0037F
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
Fuel supply pump 5 5 5 5 5 5 5 5 5 5 5 —
Fuel injector 3 3 3 3 3 3 3 3 3 4 4 3 3EC-1472
EDU (Electronic drive unit) 4 4 4 4 4 4 4 4 4 5 5 4 4EC-1501
Glow control system 1 1 1 1 1EC-1544
Engine body 3 3 3 3 3 3 3 3 4 4 3EM-110
EGR system33EC-1551
Air cleaner and duct33MA-32
Fuel pressure relief valveEC-1405
ENGINE CONTROL
Suction control valve circuit 4 4 4 4 4 4 4 4 4 4 4EC-1519
Fuel injector circuit 1 1 1 1 1 1 1 1 1 1 1 1 1EC-1472
EDU circuit 2222222222222EC-1501
Mass air flow sensor circuit 1 1 1EC-1451
Engine coolant temperature circuit 1 1 1 1EC-1456
Vehicle speed sensor circuit 1EC-1489
Accelerator pedal position sensor circuit 1 1 1EC-1460
Accelerator pedal released position
switch circuit111111EC-1531
Common rail fuel pressure sensor
circuitEC-1468
Crankshaft position sensor (TDC)
circuit1111111111EC-1479

TROUBLE DIAGNOSIS
EC-1417
[YD]
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EC
1 - 5: The numbers refer to the order of inspection.
(continued on next page)
ENGINE CONTROL
Camshaft position sensor circuit 3 3EC-1484
Start signal circuit 1 1 1 1 1 1 1 1 1EC-1566
Ignition switch circuit 1 1 1 1EC-1442
Power supply for ECM circuit 1 1 1 1EC-1442
Cooling fan relay circuitEC-1508
EGR volume control valve circuit 1 1 1EC-1551
Glow relay circuit 1 1 1 1EC-1544
ECM relay (Self-shutoff) circuit 1 1 1 1EC-1538
ECM, connector circuit 2 2 2 2 2 2 2 2 2 2 2 2 2EC-1494,
EC-1536
Air conditioner relay circuit 1 1EC-1572
Air conditioner switch circuitEC-1572
NATS (Nissan Anti-theft System) 1EC-1406
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-1418
[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. Can be detected by CONSULT-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 —
Fuel injector 3 3 3 4 4 4 1 1EC-1472
EDU (Electronic drive unit) 4 4 4 5 5 5 1 1EC-1501
Glow system1EC-1544
Engine body 3 3 3 3 1 3EM-110
EGR system3EC-1551
Air cleaner and duct3MA-32
Fuel pressure relief valveEC-1405
ENGINE CONTROL
Suction control valve circuit 4 4 4 4 1 1EC-1519
Fuel injector circuit 1 1 1 1 1 1 1 1EC-1472
EDU circuit 2 2 2 2 2 2 1 1EC-1501
Mass air flow sensor circuit 1 1 1EC-1451
Engine coolant temperature circuit 1 1 1 1 1EC-1456
Vehicle speed sensor circuit11EC-1489
Accelerator pedal position sensor circuit 1 1 1EC-1460
Accelerator pedal released position switch
circuit11EC-1531
Common rail fuel pressure sensor
circuit11EC-1468
Crankshaft position sensor (TDC)
circuit11 11EC-1479

TROUBLE DIAGNOSIS
EC-1419
[YD]
C
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MA
EC
1 - 5: The numbers refer to the order of inspection.
(continued on next page)
ENGINE CONTROL
Camshaft position sensor circuitEC-1484
Start signal circuitEC-1566
Ignition switch circuitEC-1442
Power supply for ECM circuit11EC-1442
Cooling fan relay circuit 2EC-1508
EGR volume control valve circuit 1EC-1551
Glow relay circuit1EC-1544
ECM relay (Self-shutoff) circuit1EC-1538
ECM, connector circuit 2 2 2 2 2 2 2 2 2 2 2EC-1494,EC-
1536
Air conditioner relay circuitEC-1572
Air conditioner switch circuitEC-1572
NATS (Nissan Anti-theft System)1EC-1406
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-1420
[YD]
TROUBLE DIAGNOSIS
Engine Control Component Parts Location
EBS00372
PBIB0383E

TROUBLE DIAGNOSIS
EC-1427
[YD]
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ECA24 BMass air flow sensor
ground[Engine is running]●Warm-up condition
●Idle speedApproximately 0V
A25 G/W Injector's ground[Engine is running]
●Warm-up condition
●Idle 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]
●Warm-up condition
●Idle speed1 - 5V
[Engine is running]
●Warm-up condition
●Engine 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]
●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.)
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]
●Warm-up condition
●Idle speed1.6 - 1.8V
[Engine is running]
●Warm-up condition
●Engine speed is 2,000 rpm1.8 - 2.0V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
PBIB0391E
PBIB0392E

EC-1430
[YD]
TROUBLE DIAGNOSIS
D25 R/G Stop lamp switch[Ignition switch “ON”]●Brake pedal fully releasedApproximately 0V
[Ignition switch “ON”]
●Brake pedal depressedBATTERY VOLTAGE
(11 - 14V)
D27 B/Y Start signal[Ignition switch “ON”]Approximately 0V
[Ignition switch “START”]BATTERY VOLTAGE
(11 - 14V)
E1 LSuction control valve
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
E2 LG Cooling fan relay (Low)[Engine is running]
●Cooling fan is not operatingBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●Cooling fan is operatingApproximately 0.1V
E7 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
E8 Y/G Suction control valve 1[Engine is running]
●Warm-up condition
●Idle speed0 - 12.5V
[Engine is running]
●Warm-up condition
●Engine speed is 2,000 rpm0 - 12.5V
E9 W/R Glow relay Refer to EC-1544, "
GLOW CONTROL SYSTEM" .
E10 R CAN communication line[Ignition switch “ON”]Approximately 1.7 - 2.3V
Output voltage varies with the
communication status. TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
PBIB0399E
PBIB0400E
PBIB0401E
PBIB0402E

TROUBLE DIAGNOSIS
EC-1431
[YD]
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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.
3. Turn ignition switch ON.
E11 L CAN communication line[Ignition switch “ON”]Approximately 2.6 - 3.2V
Output voltage varies with the
communication status.
E12 P/BPower steering oil pres-
sure switch[Engine is running]
●Steering wheel is being turnedApproximately 0V
[Engine is running]
●Steering wheel is not being turnedBATTERY VOLTAGE
(11 - 14V)
E13 G/ORPark/Neutral position
switch[Ignition switch “ON”]
●Gear position is “Neutral” Approximately 0V
[Ignition switch “ON”]
●Except the above gear positionBATTERY VOLTAGE
(11 - 14V)
E16 G/W Suction control valve 2[Engine is running]
●Warm-up condition
●Idle speed0 - 12.5V
[Engine is running]
●Warm-up condition
●Engine speed is 2,000 rpm0 - 12.5V
E21 L/B Vehicle speed sensor[Engine is running]
●Lift up the vehicle
●In 2nd gear position
●Vehicle speed is 30 km/h (19 MPH)0 - 5V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
PBIB0401E
PBIB0402E
PBIB0386E
PBIB0376E