2001 NISSAN X-TRAIL ignition

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

TROUBLE DIAGNOSIS
EC-1429
[YD]
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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

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

EC-1434
[YD]
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

EC-1436
[YD]
TROUBLE DIAGNOSIS
ACTIVE TEST MODE
REAL TIME DIAGNOSIS IN DATA MONITOR MODE
CONSULT-II has two kinds of triggers and they can be selected by touching “SETTING” in “DATA MONITOR”
mode.
1. “AUTO TRIG” (Automatic trigger):
–The malfunction will be identified on the CONSULT-II screen in
real time.
In other words, DTC will be displayed if the malfunction is
detected by ECM.
At the moment a malfunction is detected by ECM, “MONITOR”
in “DATA MONITOR” screen is changed to “Recording Data ...
xx%” as shown in the figure, and the data after the malfunction
detection is recorded. Then when the percentage reached
100%, “REAL-TIME DIAG” screen is displayed. If “STOP” is
touched on the screen during “ Recording Data ... xx%”, “REAL-
TIME DIAG” screen is also displayed.
The recording time after the malfunction detection and the recording speed can be changed by “TRIG-
GER POINT” and “Recording Speed”. Refer to CONSULT-II OPERATION MANUAL.
2. “MANU TRIG” (Manual trigger):
–DTC will not be displayed automatically on CONSULT-II screen
even though a malfunction is detected by ECM.
DATA MONITOR can be performed continuously even though a
malfunction is detected.
Use these triggers as follows:
1. “AUTO TRIG”
–While trying to detect the DTC by performing the “DTC Confir-
mation Procedure”, be sure to select to “DATA MONITOR
(AUTO TRIG)” mode. You can confirm the malfunction at the
moment it is detected.
TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY)
POWER BAL-
ANCE
●Engine: After warming up, idle the
engine.
●A/C switch “OFF”
●Shift lever “N”
●Cut off each injector signal one at
a time using CONSULT-IIEngine runs rough or dies.
●Harness and connectors
●Compression
●Fuel injectors
COOLING FAN
●Ignition switch: ON
●Operate the cooling fan at “LOW”,
“HI” speed and turn “OFF” using
CONSULT-II.Cooling fan moves at “LOW”, “HI”
speed and stops.●Harness and connector
●Cooling fan motor
●Cooling fan relay
OFF ACCEL PO
SIG
●This mode is used for ECM to learn accelerator pedal released positions.
GLOW RELAY
●Ignition switch: ON (Engine
stopped)
●Turn the glow relay “ON” and
“OFF” using CONSULT-II and lis-
ten to operating sound.Glow relay makes the operating
sound.●Harness and connector
●Glow relay
EGR VOL CONT/
V
●Ignition switch: ON
●Change EGR volume control
valve opening step using CON-
SULT-II.EGR volume control valve makes
an operating sound.●Harness and connector
●EGR volume control valve
PRES REGULA-
TOR
●Ignition switch: ON
●Change fuel pressure in common
rail using CONSULT-IIFuel leaks.●Fuel line
●Fuel pressure relief valve
PBIB0480E
SEF707X

TROUBLE DIAGNOSIS
EC-1437
[YD]
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EC
–While narrowing down the possible causes, CONSULT-II should be set in “DATA MONITOR (AUTO
TRIG)” mode, especially in case the incident is intermittent.
When you are inspecting the circuit by gently shaking (or twisting) the suspicious connectors, components
and harness in the “DTC Confirmation Procedure”, the moment a malfunction is found the DTC will be dis-
played. Refer to GI-23, "
How to Perform Efficient Diagnosis for an Electrical Incident" , “INCIDENT SIMU-
LATION TESTS”.
2. “MANU TRIG”
–If the malfunction is displayed as soon as “DATA MONITOR” is selected, reset CONSULT-II to “MANU
TRIG”. By selecting “MANU TRIG” you can monitor and store the data. The data can be utilized for further
diagnosis, such as a comparison with the value for the normal operating condition.
FUNCTION TEST
This mode is used to inform customers of their vehicle condition of periodic maintenance.
CONSULT-II Reference Value in Data Monitor ModeEBS0037I
Remarks:
● Specification data are reference values.
● Specification data are output/input values which are detected or supplied by the ECM at the connector.
* Specification data may not be directly related to their components signals/values/operations.
SEF720X
MONITOR ITEM CONDITION SPECIFICATION
CKPS-RPM (TDC)
●Tachometer: Connect
●Run engine and compare CONSULT-II value with the tachometer
indicationAlmost the same speed as the
tachometer indication
COOLAN TEMP/S
●Engine: After warming up More than 70°C (158°F)
VHCL SPEED SE
●Turn drive wheels and compare CONSULT-II value with the speed-
ometer indicationAlmost the same speed as the
speedometer indication
FUEL TEMP SEN
●Engine: After warming up More than 40°C (104°F)
ACCEL POS SEN*
●Ignition switch: ON
(Engine stopped)Accelerator pedal: fully released 0.8 - 1.3V
Accelerator pedal: fully depressed More than 3.5V

EC-1438
[YD]
TROUBLE DIAGNOSIS
ACCEL SEN 2*●Ignition switch: ON
(Engine stopped)Accelerator pedal: fully released 0.3 - 1.8V
Accelerator pedal: fully depressed More than 3.0V
OFF ACCEL SW
●Ignition switch: ON
(Engine stopped)Accelerator pedal: fully released ON
Accelerator pedal: slightly
depressed OFF
MAS AIR/FL SE
●Engine: After warming up
●Air conditioner switch: OFF
●Shift lever: Neutral position
●No-loadIdle 1.0 - 2.5V
2,000 rpm 2.1 - 2.7V
BATTERY VOLT
●Ignition switch: ON (Engine stopped) 11 - 14V
P/N POSI SW
●Ignition switch: ONShift lever: Neutral position ON
Except above OFF
START SIGNAL
●Ignition switch: ON → START → ON OFF → ON → OFF
PW/ST SIGNAL
●Engine: After warming up, idle
the engineSteering wheel is in neutral posi-
tion. (Forward direction)OFF
Steering wheel is turned. ON
BRAKE SW
●Ignition switch: ONBrake pedal: Fully released OFF
Brake pedal: Slightly depressed ON
IGN SW
●Ignition switch: ON → OFF ON → OFF
ACT CR PRESS
●Engine: After warming up
●Air conditioner switch: OFF
●Shift lever: Neutral position
●No-loadIdle 30 - 40 MPa
2,000 rpm 40 - 50 MPa
SUCTION CV
●Engine: After warming up
●Air conditioner switch: OFF
●Shift lever: Neutral position
●No-loadIdle 70.0 - 71.5°CA
2,000 rpm 73.5 - 75.0°CA
MAIN INJ WID
●Engine: After warming up
●Shift lever: Neutral position
●Idle speedNo-load 0.68 - 0.78 msec
Air conditioner switch: ON
Rear window defogger switch: ON0.78 - 0.88 msec
GLOW RLY Refer to EC-1544, "
GLOW CONTROL SYSTEM" .
COOLING FAN
●When cooling fan is stopped. OFF
●When cooling fans operate at low speed. LOW
●When cooling fans operate at high speed. HIGH
EGR VOL CON/V
●Engine: After warming up
●Air conditioner switch: OFF
●Shift lever: Neutral position
●No-loadAfter one minute at idle More than 10 steps
Revving engine from idle to 3,600
rpm0 step
INT/A VOLUME
●Engine: After warming up, idle the engine 150 - 450 mg/st MONITOR ITEM CONDITION SPECIFICATION