NISSAN X-TRAIL 2005 Service Repair Manual

TROUBLE DIAGNOSIS
EC-1037
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

DATA MONITOR MODE
MONITOR ITEMECM
INPUT
SIGNALMAIN
SIG-
NALSCONDITION SPECIFICATION
CKPS·RPM (TDC) [rpm]××

The engine speed computed from the
crankshaft position sensor signal is dis-
played.
COOLAN TEMP/S
[°C] or [°F]××

The engine coolant temperature (deter-
mined 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 (determined by the
signal voltage of the fuel pump tempera-
ture sensor) is displayed.
ACCEL POS SEN [V]××

The accelerator pedal position sensor 1
signal voltage is displayed.
ACCEL SEN 2 [V]××

The accelerator pedal position sensor 2
signal voltage is displayed.
ACT CR PRESS [MPa]××

The Fuel rail pressure (determined by
the signal voltage of the fuel rail pressure
sensor) is displayed.
BATTERY VOLT [V]××

The power supply voltage of ECM is dis-
played.
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 pressure switch signal.
BRAKE SW [ON/OFF]××

indicates [ON/OFF] condition from the
stop lamp switch signal.
BRAKE SW2 [ON/OFF]××

indicates [ON/OFF] condition from the
ASCD brake switch and ASCD clutch
switch signal.
IGN SW [ON/OFF]××

Indicates [ON/OFF] condition from igni-
tion switch signal.
MAS AIR/FL SE [V]××

The signal voltage of the mass air flow
sensor is displayed.
MAIN INJ WID [msec]×

Indicates the actual fuel injection pulse
width compensated by ECM according to
the input signals.
PUMP CURRENT [mA]×

Indicates the fuel pump power supply
current from the ECM.
GLOW RLY [ON/OFF]×

The glow relay control condition (deter-
mined by ECM according to the input sig-
nal) is displayed.
COOLING FAN
[LOW/HI/OFF]×

Indicates the control condition of the
cooling fans (determined by ECM
according to the input signal).
LOW ... Operates at low speed.
HI ... Operates at high speed.
OFF ... Stopped

EC-1038
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS

NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
ACTIVE TEST MODE
EGR VOL CON/V [step]×

Indicates the EGR volume control value
computed by the ECM according to the
input signals.

The opening becomes larger as the
value increases.
INT/A VOLUME [mg/]

The intake air volume computed from the
mass air flow sensor signal is displayed.
BARO SEN [kPa]××

The barometric pressure (determined by
the signal voltage from the absolute
pressure sensor built into the ECM) is
displayed.
INT/M PRES SE [kPa]

Turbocharger boost (determined by the
signal voltage from the turbocharger
boost sensor) is displayed.
CYL COUNT [1/2/3/4]

The cylinder being injected is displayed.
1 ... Cylinder No.1 is injected.
2 ... Cylinder No.2 is injected.
3 ... Cylinder No.3 is injected.
4 ... Cylinder No.4 is injected.
SET SW
[ON/OFF]×

Indicates [ON/OFF] condition from SET/
COAST switch signal.
RESUME/ACC SW
[ON/OFF]×

Indicates [ON/OFF] condition from
RESUME/ACCELERATE switch signal.
CANCEL SW
[ON/OFF]×

Indicates [ON/OFF] condition from CAN-
CEL switch signal.
MAIN SW
[ON/OFF]×

Indicates [ON/OFF] condition from MAIN
switch signal.
Voltage [V]
Voltage, frequency, duty cycle or pulse
width measured by the probe.Only “#” is displayed if item is
unable to be measured.
Figures with “#”s are temporary
ones.
They are the same figures as an
actual piece of data which was
just previously measured. [Hz] or
[%] Frequency [msec], [Hz] or
[%]
DUTY-HI
DUTY-LOW
PLS WIDTH-HI
PLS WIDTH-LOWMONITOR ITEMECM
INPUT
SIGNALMAIN
SIG-
NALSCONDITION SPECIFICATION
TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY)
POWER BAL-
ANCE

Engine: After warming up, idle the
engine.

A/C switch: OFF

Shift lever: Neutral position

Cut off each injector signal one at
a time using CONSULT-IIEngine runs rough or dies.

Harness and connectors

Compression

Fuel injector
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

TROUBLE DIAGNOSIS
EC-1039
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

*:Leaving cooling fan OFF with CONSULT-II while engine is running may cause the engine to overheat.
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/1st trip DTC/2nd trip 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/1st trip DTC/2nd trip DTC will not be displayed automati-
cally 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/1st trip DTC/2nd trip DTC by per-
forming the “DTC Confirmation Procedure”, be sure to select to
“DATA MONITOR (AUTO TRIG)” mode. You can confirm the
malfunction at the moment it is detected.
–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/1st trip
DTC/2nd trip DTC will be displayed. Refer to GI-23, "
How to Perform Efficient Diagnosis for an Electrical
Incident" , “INCIDENT SIMULATION TESTS”.
ENG COOLANT
TEMP

Engine: Return to the original
trouble condition

Change the engine coolant tem-
perature using CONSULT-II.If trouble symptom disappears, see
CHECK ITEM.

Harness and connectors

Engine coolant temperature sen-
sor

Fuel injector
GLOW RLY

Ignition switch: ON (Engine
stopped)

Turn the glow relay ON and OFF
using CONSULT-II and listen 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 rail pressure using
CONSULT-IIFuel leaks.
Fuel line

Fuel pressure relief valve
PUMP LEANT
CLEAR

This mode is used for performing Fuel Pump Learning Value Clearing. Refer to EC-994, "Fuel Pump Learning
Value Clearing" . TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY)
PBIB0480E
SEF707X

EC-1040
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS

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.
Generic Scan Tool (GST) FunctionEBS011UO
DESCRIPTION
Generic Scan Tool (OBDII scan tool) complying with ISO 15031-4
has 8 different functions explained below.
ISO9141 is used as the protocol.
The name “GST” or “Generic Scan Tool” is used in this service man-
ual.
FUNCTION
SEF720X
SEF139P
Diagnostic test mode Function
Service $01 READINESS TESTSThis diagnostic service gains access to current emission-related data values, including
analog inputs and outputs, digital inputs and outputs, and system status information.
Service $02 (FREEZE DATA)This diagnostic service gains access to emission-related data value which were stored by
ECM during the freeze frame. For details, refer to EC-999, "
FREEZE FRAME DATA" .
Service $03 DTCsThis diagnostic service gains access to emission-related power train trouble codes which
were stored by ECM.

TROUBLE DIAGNOSIS
EC-1041
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

INSPECTION PROCEDURE
1. Turn ignition switch OFF.
2. Connect “GST” to data link connector, which is located under
drivers side dash panel near the fuse box cover.
3. Turn ignition switch ON.
4. Enter the program according to instruction on the screen or in
the operation manual.
(*: Regarding GST screens in this section, sample screens are
shown.)
5. Perform each diagnostic mode according to each service proce-
dure.
For further information, see the GST Operation Manual of the
tool maker.
Service $04 CLEAR DIAG INFOThis diagnostic service can clear all emission-related diagnostic information. This
includes:

Clear number of diagnostic trouble codes (Service $01)

Clear diagnostic trouble codes (Service $03)

Clear trouble code for freeze frame data (Service $01)

Clear freeze frame data (Service $02)

Reset status of system monitoring test (Service $01)

Clear on board monitoring test results (Service $07)
Service $06 (ON BOARD TESTS) This diagnostic service is not applicable on this vehicle.
Service $07 (ON BOARD TESTS)This diagnostic service enables the off board test drive to obtain test results for emission-
related powertrain components/systems that are continuously monitored during normal
driving conditions.
Service $09 (CALIBRATION ID)This diagnostic service enables the off-board test device to request specific vehicle infor-
mation such as Vehicle Identification Number (VIN) and Calibration IDs. Diagnostic test mode Function
PBIB0376E
SEF398S
SEF416S

EC-1042
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS

CONSULT-II Reference Value in Data Monitor ModeEBS0117H
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.
MONITOR ITEM CONDITION SPECIFICATION
CKPS-RPM (TDC)

Run engine and compare CONSULT-II value with the tachometer
indication.Almost 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 0.2 - 0.7V
Accelerator pedal: Fully depressed 3.9 - 4.9V
ACCEL SEN 2*

Ignition switch: ON
(Engine stopped)Accelerator pedal: Fully released 0.1 - 0.4V
Accelerator pedal: Fully depressed 1.9 - 2.4V
MAS AIR/FL SE*

Engine: After warming up

Air conditioner switch: OFF

Shift lever: Neutral position

No-loadIdle 1.5 - 2.0V
2,000 rpm 2.2 - 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
BRAKE SW2

Ignition switch: ONBrake pedal and clutch pedal:
Fully releasedOFF
Brake pedal and/or clutch pedal:
Slightly depressedON
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 20 - 30 MPa
2,000 rpm 45 - 55 MPa
MAIN INJ WID

Engine: After warming up

Shift lever: Neutral position

Idle speedNo-load 0.68 - 0.78 msec
Blower fan switch: ON
Rear window defogger switch: ON0.78 - 0.88 msec
GLOW RLY Refer to EC-1305, "
GLOW CONTROL SYSTEM" .
PUMP CURRENT

Engine: After warming up

Air conditioner switch: OFF

Shift lever: Neutral position

No-loadIdle 1,700 - 1,900 mA
2,000 rpm 1,600 - 1,800 mA
COOLING FAN

When cooling fan is stopped. OFF

When cooling fans operate at low speed. LOW

When cooling fans operate at high speed. HI

TROUBLE DIAGNOSIS
EC-1043
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
*: These signals are converted by ECM internally. Thus, these differ from ECM terminals voltage.
Major Sensor Reference Graph in Data Monitor ModeEBS0117I
The following are the major sensor reference graphs in “DATA MONITOR” mode.
ACCEL POS SEN, “CKPS·RPM (TDC)”, “MAS AIR/FL SE”
Below is the data for “ACCEL POS SEN”, “CKPS·RPM (TDC)” and “MAS AIR/FL SE” when revving engine
quickly up to 3,000 rpm under no load after warming up engine to the normal operating temperature.
EGR VOL CON/V

Engine: After warming up

Air conditioner switch: OFF

Shift lever: Neutral position

No-loadAfter 1 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
INT/M PRES SE [kPa]

Engine: After warming up

Air conditioner switch: OFF

Shift lever: Neutral position

No-loadIdle Approx. 100 kPa
2,800 rpm Approx. 126 kPa
4,000 rpm Approx. 106 kPa
BARO SEN

Ignition switch: ONAltitude
Approx. 0m: Approx. 100.62 kPa
(1.0062 bar, 1.026 kg/cm
2 , 14.59
psi)
Approx. 1,000 m: Approx. 88.95
kPa (0.8895 bar, 0.907 kg/cm
2 ,
12.90 psi)
Approx. 1,500 m: Approx. 83.16
kPa (0.8316 bar, 0.848 kg/cm
2 ,
12.06 psi)
Approx. 2,000 m: Approx. 78.36
kPa (0.7836 bar, 0.799 kg/cm
2 ,
11.36 psi)
CYL COUNT

Engine is running 1 → 3 → 4 → 2
SET SW

Ignition switch: ONSET/COAST switch: Released OFF
SET/COAST switch: Pressed ON
RESUME/ACC SW

Ignition switch: ONRESUME/ACCELERATE switch:
ReleasedOFF
RESUME/ACCELERATE switch:
PressedON
CANCEL SW

Ignition switch: ONCANCEL switch: Released OFF
CANCEL switch: Pressed ON
MAIN SW

Ignition switch: ONMAIN switch: Released OFF
MAIN switch: Pressed ON MONITOR ITEM CONDITION SPECIFICATION

EC-1044
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS

Each value is for reference, the exact value may vary.
SEF321Y

TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT
EC-1045
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTPFP:00006
DescriptionEBS0117J
Intermittent incidents may occur. In many cases, the incident resolves itself (the part or circuit function returns
to normal without intervention). It is important to realize that the symptoms described in the customer's com-
plaint often do not recur on (1st/2nd trip) DTC visits. Realize also that the most frequent cause of intermittent
incidents occurrences is poor electrical connections. Because of this, the conditions under which the incident
occurred may not be clear. Therefore, circuit checks made as part of the standard diagnostic procedure may
not indicate the specific malfunctioning area.
COMMON INTERMITTENT INCIDENTS REPORT SITUATIONS
Diagnostic ProcedureEBS0117K
1. INSPECTION START
Erase (1st/2nd trip) DTCs. Refer to EC-999, "
HOW TO ERASE EMISSION-RELATED DIAGNOSTIC INFOR-
MATION" .
>> GO TO 2.
2. CHECK GROUND TERMINALS
Check ground terminals for corroding or loose connection.
Refer to EC-1055, "
Ground Inspection" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace.
3. SEARCH FOR ELECTRICAL INCIDENT
Perform GI-23, "
How to Perform Efficient Diagnosis for an Electrical Incident" , “INCIDENT SIMULATION
TESTS”.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace.
STEP in Work Flow Situation
II The CONSULT-II is used. The SELF-DIAG RESULTS screen shows time data other than “0”.
III The symptom described by the customer does not recur.
IV (1st/2nd trip) DTC does not appear during the DTC Confirmation Procedure.
VI The Diagnostic Procedure for XXXX does not indicate the malfunctioning area.

EC-1046
[YD (WITH EURO-OBD)]
POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUITPFP:24110
Wiring DiagramEBS0117M
TBWA0563E