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EC-1427
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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 r NISSAN X-TRAIL 2001 Service Repair Manual TROUBLE DIAGNOSIS
EC-1427
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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 r](/manual-img/5/57405/w960_57405-1776.png)
TROUBLE DIAGNOSIS
EC-1427
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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
Page 1778 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual EC-1428
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TROUBLE DIAGNOSIS
B15 WAccelerator pedal position
sensor 1[Ignition switch “ON”]
●Engine stopped
●Accelerator pedal fully released0.8 - 1.3V
[Ignition switch “ON”]
●Engine NISSAN X-TRAIL 2001 Service Repair Manual EC-1428
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TROUBLE DIAGNOSIS
B15 WAccelerator pedal position
sensor 1[Ignition switch “ON”]
●Engine stopped
●Accelerator pedal fully released0.8 - 1.3V
[Ignition switch “ON”]
●Engine](/manual-img/5/57405/w960_57405-1777.png)
EC-1428
[YD]
TROUBLE DIAGNOSIS
B15 WAccelerator pedal position
sensor 1[Ignition switch “ON”]
●Engine stopped
●Accelerator pedal fully released0.8 - 1.3V
[Ignition switch “ON”]
●Engine stopped
●Accelerator pedal fully depressedMore than 3.5V
B16 GAccelerator pedal position
sensor 2[Ignition switch “ON”]
●Engine stopped
●Accelerator pedal fully released0.3 - 1.8V
[Ignition switch “ON”]
●Engine stopped
●Accelerator pedal fully depressedMore than 3.0V
B18 R/GCamshaft position sensor
ground[Engine is running]
●Warm-up condition
●Idle speedApproximately 0V
B19 R/Y Camshaft position sensor[Engine is running]
●Warm-up condition
●Idle speed0 - 3V
[Engine is running]
●Warm-up condition
●Engine speed is 2,000 rpm0 - 8V
B20 L/RCrankshaft position sen-
sor (TDC) ground[Engine is running]
●Warm-up condition
●Idle speedApproximately 0V
B21 L/GCrankshaft position sen-
sor (TDC)[Engine is running]
●Warm-up condition
●Idle speed0 - 12.5V
[Engine is running]
●Warm-up condition
●Engine speed is 2,000 rpm0 - 30.0V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
PBIB0393E
PBIB0394E
PBIB0395E
PBIB0396E
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![NISSAN X-TRAIL 2001 Service Repair Manual TROUBLE DIAGNOSIS
EC-1429
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ECB23 GY/LAccelerator pedal position
sensor 2 power supply[Ignition switch “ON”]Approximately 5V
D1 L/OR Tachometer[Engine is running]
●War NISSAN X-TRAIL 2001 Service Repair Manual TROUBLE DIAGNOSIS
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ECB23 GY/LAccelerator pedal position
sensor 2 power supply[Ignition switch “ON”]Approximately 5V
D1 L/OR Tachometer[Engine is running]
●War](/manual-img/5/57405/w960_57405-1778.png)
TROUBLE DIAGNOSIS
EC-1429
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ECB23 GY/LAccelerator pedal position
sensor 2 power supply[Ignition switch “ON”]Approximately 5V
D1 L/OR Tachometer[Engine is running]
●Warm-up condition
●Idle speed0 - 12.5V
[Engine is running]
●Warm-up condition
●Engine speed is 2,000 rpm0 - 12.5V
D2 OR Glow lamp[Ignition switch “ON”]
●Glow lamp is “ON”Approximately 1.0V
[Ignition switch “ON”]
●Glow lamp is “OFF”BATTERY VOLTAGE
(11 - 14V)
D9 OR/L Malfunction indicator[Ignition switch “ON”]Approximately 1.0V
[Engine is running]
●Idle speedBATTERY VOLTAGE
(11 - 14V)
D11 L Air conditioner relay[Engine is running]
●Air conditioner switch is “OFF”BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●Both air conditioner switch and blower fan
switch are “ON” (Compressor is operating)Approximately 0.1V
D14 G/YAccelerator pedal
released position switch[Ignition switch “ON”]
●Engine stopped
●Accelerator pedal slightly depressedBATTERY VOLTAGE
(11 - 14V)
[Ignition switch “ON”]
●Engine stopped
●Accelerator pedal fully releasedApproximately 0V
D18
D19W/R
W/RIgnition switch [Ignition switch “ON”]BATTERY VOLTAGE
(11 - 14V)
D23 PU/W Air conditioner switch[Engine is running]
●Air conditioner switch is “OFF”BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●Both air conditioner switch and blower fan
switch are “ON” (compressor is operating)Approximately 0.1V
D24
D26G
GECM relay (self-shutoff)[Ignition switch “ON”]
[Ignition switch “OFF”]
●For a few seconds after turning ignition
switch “OFF”Approximately 0V
[Ignition switch “OFF”]
●A few seconds passed after turning ignition
switch “OFF”BATTERY VOLTAGE
(11 - 14V) TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
PBIB0397E
PBIB0398E
Page 1780 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual EC-1430
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TROUBLE DIAGNOSIS
D25 R/G Stop lamp switch[Ignition switch “ON”]●Brake pedal fully releasedApproximately 0V
[Ignition switch “ON”]
●Brake pedal depressedBATTERY VOLTAGE
(11 - NISSAN X-TRAIL 2001 Service Repair Manual EC-1430
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TROUBLE DIAGNOSIS
D25 R/G Stop lamp switch[Ignition switch “ON”]●Brake pedal fully releasedApproximately 0V
[Ignition switch “ON”]
●Brake pedal depressedBATTERY VOLTAGE
(11 -](/manual-img/5/57405/w960_57405-1779.png)
EC-1430
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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
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EC-1431
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EC
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
CONSULT-II FunctionEBS0037H
CONSULT-II INSPECTION P NISSAN X-TRAIL 2001 Service Repair Manual TROUBLE DIAGNOSIS
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EC
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
CONSULT-II FunctionEBS0037H
CONSULT-II INSPECTION P](/manual-img/5/57405/w960_57405-1780.png)
TROUBLE DIAGNOSIS
EC-1431
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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
Page 1782 of 3833
EC-1432
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TROUBLE DIAGNOSIS
4. Touch “START (NISSAN BASED VHCL)”.
5. Touch “ENGINE”.
If “ENGINE” is not indicated, go to GI-34, "
CONSULT-II Data
Link Connector (DLC) Circuit" .
6. Perform each diagnostic test mode according to each service
procedure.
For further information, see the CONSULT-II Operation Manual.
MBIB0233E
SEF995X
PBIB0410E
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EC-1433
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EC
ENGINE CONTROL COMPONENT PARTS/CONTROL SYSTEMS APPLICATION
X: Applicable
SELF-DIAGNOSTIC MODE
Regarding items detected in “SELF-DIAG RESULTS NISSAN X-TRAIL 2001 Service Repair Manual TROUBLE DIAGNOSIS
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EC
ENGINE CONTROL COMPONENT PARTS/CONTROL SYSTEMS APPLICATION
X: Applicable
SELF-DIAGNOSTIC MODE
Regarding items detected in “SELF-DIAG RESULTS](/manual-img/5/57405/w960_57405-1782.png)
TROUBLE DIAGNOSIS
EC-1433
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EC
ENGINE CONTROL COMPONENT PARTS/CONTROL SYSTEMS APPLICATION
X: Applicable
SELF-DIAGNOSTIC MODE
Regarding items detected in “SELF-DIAG RESULTS” mode, refer to — EC-1393, "INDEX FOR DTC" .
DATA MONITOR MODE
ItemDIAGNOSTIC TEST MODE
SELF-DIAG
RESULTSDATA MONI-
TORACTIVE
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××
MONITOR ITEMECM
INPUT
SIG-
NALMAIN
SIG-
NALSCAN
DIAG
SUP-
PORT
MNTRCONDITION SPECIFICATION
CKPS·RPM (TDC) [rpm]××
●The engine speed computed
from the crankshaft position
sensor (TDC) signal is dis-
played.
COOLAN TEMP/S
[°C] or [°F]××
●The engine coolant tempera-
ture (determined by the signal
voltage of the engine coolant
temperature sensor) is dis-
played.When the engine coolant temper-
ature circuit is open or short, ECM
enters fail-safe mode. The engine
coolant temperature determined
by the ECM is displayed.
VHCL SPEED SE
[km/h] or [mph]××
●The vehicle speed computed
form the vehicle speed sensor
signal is displayed.
FUEL TEMP SEN [°C] or [°F]××
●The fuel temperature (deter-
mined by the signal voltage of
the fuel temperature sensor) is
displayed.
Page 1784 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual EC-1434
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TROUBLE DIAGNOSIS
ACCEL POS SEN [V]××
●The accelerator pedal position
sensor 1 signal voltage is dis-
played.
ACCEL SEN 2 [V]××
●The accelerator pedal position
sensor 2 signal v NISSAN X-TRAIL 2001 Service Repair Manual EC-1434
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TROUBLE DIAGNOSIS
ACCEL POS SEN [V]××
●The accelerator pedal position
sensor 1 signal voltage is dis-
played.
ACCEL SEN 2 [V]××
●The accelerator pedal position
sensor 2 signal v](/manual-img/5/57405/w960_57405-1783.png)
EC-1434
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TROUBLE DIAGNOSIS
ACCEL POS SEN [V]××
●The accelerator pedal position
sensor 1 signal voltage is dis-
played.
ACCEL SEN 2 [V]××
●The accelerator pedal position
sensor 2 signal voltage is dis-
played.
OFF ACCEL SW [ON/OFF]××
●indicates [ON/OFF] condition
from the accelerator pedal
released position switch signal.
ACT CR PRESS [MPa]××
●The common rail fuel pressure
(determined by the signal volt-
age of the common rail fuel
pressure sensor) is displayed.
BATTERY VOLT [V]××
●The power supply voltage of
ECM is displayed.
P/N POSI SW [ON/OFF]××
●Indicates [ON/OFF] condition
from the park/neutral position
switch signal.
START SIGNAL [ON/OFF]××
●indicates [ON/OFF] condition
from the starter signal.
PW/ST SIGNAL [ON/OFF]×
●indicates [ON/OFF] condition
from the power steering oil pres-
sure switch signal.
BRAKE SW [ON/OFF]××
●indicates [ON/OFF] condition
from the stop lamp switch sig-
nal.
IGN SW [ON/OFF]××
●Indicates [ON/OFF] condition
from ignition switch signal.
MAS AIR/FL SE [V]××
●The signal voltage of the mass
air flow sensor is displayed.
SUCTION CV [°CA]×
●Indicates [°CA] of suction con-
trol valve operating angle.
MAIN INJ WID [msec]×
●Indicates the actual fuel injec-
tion pulse width compensated
by ECM according to the input
signals.
GLOW RLY [ON/OFF]×
●The glow relay control condition
(determined by ECM according
to the input signal) is displayed.
COOLING FAN
[LOW/HI/OFF]×
●Indicates the control condition of
the cooling fans (determined by
ECM according to the input sig-
nal).
LOW ... Operates at low speed.
HI ... Operates at high speed.
OFF ... Stopped
EGR VOL CON/V [step]×
●Indicates the EGR volume con-
tro l value co mp ute d by the ECM
according to the input signals.
●The opening becomes larger as
the value increases. MONITOR ITEMECM
INPUT
SIG-
NALMAIN
SIG-
NALSCAN
DIAG
SUP-
PORT
MNTRCONDITION SPECIFICATION