2003 NISSAN X-TRAIL ECO mode

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-899
[YD (WITH EURO-OBD)]
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RELATIONSHIP BETWEEN MI, DTC, 1ST/ 2NDTRIP DTC AND DRIVING PATTERNS
*1: CONSULT-II displays for DTC and
1st/2nd trip DTC become the same.*2: 1st/2nd trip DTC becomes the same
display in mode7 of GST.*3: When the same malfunction is
detected in three consecutive trips,
MI will light up.
*4: MI will go off after vehicle is driven 3
times (pattern A) without any mal-
functions.*5: When the malfunction is detected for
the first time, 1st trip DTC is stored in
the ECM memory.*6: When the same malfunction is
detected during 2nd consecutive trip,
2nd trip DTC is stored and 1st trip
DTC is cleared.
*7: When the same malfunction is
detected during 3rd consecutive trip,
DTC and Freeze Frame Data are
stored.*8: The DTC and the freeze frame data
will not be displayed any longer after
vehicle is driven 41 times (pattern B)
without the same malfunction.
PBIB2048E

TROUBLE DIAGNOSIS
EC-903
[YD (WITH EURO-OBD)]
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Description for Work Flow
DIAGNOSTIC WORK SHEET
There are many operating conditions that lead to the malfunction of
engine components. A good grasp of such conditions can make trou-
bleshooting faster and more accurate.
In general, each customer feels differently about an incident. It is
important to fully understand the symptoms or conditions for a cus-
tomer complaint.
Utilize a diagnostic worksheet like the one shown below in order to
organize all the information for troubleshooting.
STEP DESCRIPTION
STEP IGet detailed information about the conditions and the environment when the incident/symptom occurred using the
EC-903, "
DIAGNOSTIC WORK SHEET" .
STEP IIBefore confirming the concern, check and write down (print out using CONSULT-II or GST) the (1st/2nd trip) DTC and
the freeze frame data (When 1st/2nd trip DTC is detected, Freeze Frame Data is not recorded.), then erase the DTC
and the data. (Refer to EC-895
.) The (1st/2nd trip) DTC and the freeze frame data can be used when duplicating the
incident at STEP III & IV.
If the incident cannot be verified, perform EC-936, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
Study the relationship between the cause, specified by (1st/2nd trip) DTC, and the symptom described by the cus-
tomer. (The Symptom Matrix Chart will be useful. See EC-909
.)
Also check related service bulletins for information.
STEP IIITry to confirm the symptom and under what conditions the incident occurs.
The DIAGNOSTIC WORK SHEET and the freeze frame data are useful to verify the incident. Connect CONSULT-II
to the vehicle in “DATA MONITOR (AUTO TRIG)” mode and check real time diagnosis results.
If the incident cannot be verified, perform EC-936, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
If the malfunction code is detected, skip STEP IV and perform STEP V.
STEP IVTry to detect the (1st/2nd trip) DTC by driving in (or performing) the DTC Confirmation Procedure. Check and read
the (1st/2nd trip) DTC and freeze frame data by using CONSULT-II or GST.
During the (1st/2nd trip) DTC verification, be sure to connect CONSULT-II to the vehicle in “DATA MONITOR (AUTO
TRIG)” mode and check real time diagnosis results.
If the incident cannot be verified, perform EC-936, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
In case the DTC Confirmation Procedure is not available, perform the Overall Function Check instead. The (1st/2nd
trip) DTC cannot be displayed by this check, however, this simplified check is an effective alternative.
The NG result of the Overall Function Check is the same as the (1st/2nd trip) DTC detection.
STEP VTake the appropriate action based on the results of STEP I through IV.
If the malfunction code is indicated, proceed to TROUBLE DIAGNOSIS FOR DTC PXXXX.
If the normal code is indicated, proceed to the BASIC INSPECTION. (Refer to EC-905
.)Then perform inspections
according to the Symptom Matrix Chart. (Refer to EC-909
.)
STEP VIIdentify where to begin diagnosis based on the relationship study between symptom and possible causes. Inspect the
system for mechanical binding, loose connectors or wiring damage using (tracing) Harness Layouts.
Gently shake the related connectors, components or wiring harness with CONSULT-II set in “DATA MONITOR
(AUTO TRIG)” mode.
Check the voltage of the related ECM terminals or monitor the output data from the related sensors with CONSULT-II.
Refer to EC-919
, EC-933 .
The Diagnostic Procedure in EC section contains a description based on open circuit inspection. A short circuit
inspection is also required for the circuit check in the Diagnostic Procedure. For details, refer to Circuit Inspection in
GI-23, "
How to Perform Efficient Diagnosis for an Electrical Incident" .
Repair or replace the malfunction parts.
If malfunctioning part cannot be detected, perform EC-936, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT" .
STEP VIIOnce you have repaired the circuit or replaced a component, you need to run the engine in the same conditions and
circumstances which resulted in the customer's initial complaint.
Perform the DTC Confirmation Procedure and confirm the normal code [DTC No. P0000] is detected. If the incident is
still detected in the final check, perform STEP VI by using a method different from the previous one.
Before returning the vehicle to the customer, be sure to erase the unnecessary (already fixed) (1st/2nd trip) DTC in
ECM. (Refer to EC-895, "
HOW TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION" .)
SEF907L

EC-906
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS

1. INSPECTION START
1. Check service records for any recent repairs that may indicate a related incident.
2. Check the current need for scheduled maintenance, especially for fuel filter and air cleaner filter. Refer to
MA-7, "
PERIODIC MAINTENANCE" .
3. Open engine hood and check the following:
–Harness connectors for improper connections
–Vacuum hoses for splits, kinks, or improper connections
–Wiring for improper connections, pinches, or cuts
4. Start engine and warm it up to the normal operating tempera-
ture.
>> GO TO 2.
2. PREPARATION FOR CHECKING IDLE SPEED
With CONSULT-II
Connect CONSULT-II to the data link connector.
>> GO TO 3.
3. CHECK IDLE SPEED
With CONSULT-II
1. Select “CKPS·RPM (TDC)” in “DATA MONITOR” mode with CONSULT-II.
2. Read idle speed.
OK or NG
OK >>INSPECTION END
NG >> GO TO 4.
4. CHECK FOR INTAKE AIR LEAK
Listen for an intake air leak after the mass air flow sensor.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace.
SEF142I
725±25 rpm
SEF817Y

TROUBLE DIAGNOSIS
EC-929
[YD (WITH EURO-OBD)]
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NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
ACTIVE TEST MODE
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
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.
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: N

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
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

EC-930
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS

*: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”.
2. “MANU TRIG”
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-890, "Fuel Pump Learning
Value Clearing" . TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY)
PBIB0480E
SEF707X

EC-944
[YD (WITH EURO-OBD)]
DTC U1000 CAN COMMUNICATION LINE

DTC U1000 CAN COMMUNICATION LINEPFP:23710
DescriptionEBS0117P
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
On Board Diagnosis LogicEBS0117Q
This self-diagnosis has the one trip detection logic.
The MI will not light up for this self-diagnosis.
DTC Confirmation ProcedureEBS0117R
1. Turn ignition switch ON and wait at least 3 seconds.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. If DTC is detected, go to EC-946, "
Diagnostic Procedure" .
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
U1000CAN communication
line

ECM can not communicate to other control
unit.

ECM can not communicate for more than the
specified time.

Harness or connectors
(CAN communication line is open or
shorted)

DTC P0016 CKP - CMP CORRELATION
EC-947
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DTC P0016 CKP - CMP CORRELATIONPFP:10328
On Board Diagnosis LogicEBS0117U
DTC Confirmation ProcedureEBS0117V
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for at least 5 seconds.
4. If 1st trip DTC is detected, go to EC-947, "
Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Diagnostic ProcedureEBS0117W
1. CHECK CAMSHAFT POSITION SENSOR
Refer to EC-1061, "
Component Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Replace camshaft position sensor.
2. CHECK SPROCKET
Visually check for chipping signal plate gear tooth.
OK or NG
OK >> GO TO 3.
NG >> Remove debris and clean the signal plate or replace sprocket.
3. CHECK CRANKSHAFT POSITION SENSOR
Refer to EC-1049, "
Component Inspection" .
OK or NG
OK >> GO TO 4.
NG >> Replace crankshaft position sensor.
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
P0016Crankshaft position -
camshaft position cor-
relationThe correlation between crankshaft position sen-
sor signal and camshaft position sensor signal is
out of the normal range.

Camshaft position sensor

Crankshaft position sensor

Timing chain

Signal plate
SEF817Y

EC-950
[YD (WITH EURO-OBD)]
DTC P0045 TC BOOST CONTROL SOLENOID VALVE

On Board Diagnosis LogicEBS011TP
DTC Confirmation ProcedureEBS011TQ
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for at least 5 seconds.
4. If 1st trip DTC is detected, go to EC-952, "
Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0045Turbocharger boost control sole-
noid valve circuit / openAn improper voltage is sent to ECM
through turbocharger boost control
solenoid valve.

Harness or connectors
(The solenoid valve circuit is
open or shorted.)

Turbocharger boost control
solenoid valve
SEF817Y