2003 NISSAN X-TRAIL Service Repair Manual

suspension lug pattern audio brake fluid air bleeding belt

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NISSAN X-TRAIL 2003 Service Repair Manual BASIC SERVICE PROCEDURE
EC-47
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6. Touch “START” and wait 20 seconds.
7. Make sure that “CMPLT” is displayed on CONSULT-II screen. If
“CMPLT”

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NISSAN X-TRAIL 2003 Service Repair Manual EC-48
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BASIC SERVICE PROCEDURE

12. Rev up the engine two or three times and make sure that idle speed and ignition timing are within the
specifications.
13. If idle speed and ign

EC-48
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BASIC SERVICE PROCEDURE

12. Rev up the engine two or three times and make sure that idle speed and ignition timing are within the
specifications.
13. If idle speed and ignition timing are not within the specification, Idle Air Volume Learning will not be carried
out successfully. In this case, find the cause of the incident by referring to the DIAGNOSTIC PROCE-
DURE below.
DIAGNOSTIC PROCEDURE
If idle air volume learning cannot be performed successfully, proceed as follows:
1.Check that throttle valve is fully closed.
2.Check PCV valve operation.
3.Check that downstream of throttle valve is free from air leakage.
4.When the above three items check out OK, engine component parts and their installation condi-
tion are questionable. Check and eliminate the cause of the incident.
It is useful to perform EC-119, "
TROUBLE DIAGNOSIS - SPECIFICATION VALUE" .
5.If any of the following conditions occur after the engine has started, eliminate the cause of the
incident and perform Idle Air Volume Learning all over again:
Engine stalls.
Erroneous idle.
Fuel Pressure CheckEBS010LI
FUEL PRESSURE RELEASE
With CONSULT-II
1. Turn ignition switch ON.
2. Perform “FUEL PRESSURE RELEASE” in “WORK SUPPORT”
mode with CONSULT-II.
3. Start engine.
4. After engine stalls, crank it 2 or 3 times to release all fuel pres-
sure.
5. Turn ignition switch OFF.
Without CONSULT-II
1. Remove fuel pump fuse located in fuse box.
2. Start engine.
3. After engine stalls, crank it 2 or 3 times to release all fuel pres-
sure.
4. Turn ignition switch OFF.
5. Reinstall fuel pump fuse after servicing fuel system.
FUEL PRESSURE CHECK
Before disconnecting fuel line, release fuel pressure from fuel line to eliminate danger.
ITEM SPECIFICATION
Idle speed QR20DE with M/T models: 650±50 rpm (in Neutral position)
Except above: 700±50 rpm [in P or N (A/T), Neutral (M/T) position]
Ignition timing M/T: 15±5° BTDC (in Neutral position)
A/T: 15±5° BTDC (in P or N position)
SEF214Y
PBIB0508E

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NISSAN X-TRAIL 2003 Service Repair Manual BASIC SERVICE PROCEDURE
EC-49
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NOTE:
Prepare pans or saucers under the disconnected fuel line because the fuel may spill out. The fuel pres-
sure cannot

BASIC SERVICE PROCEDURE
EC-49
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NOTE:
Prepare pans or saucers under the disconnected fuel line because the fuel may spill out. The fuel pres-
sure cannot be completely released because T30 models do not have fuel return system.
CAUTION:
The fuel hose connection method used when taking fuel pressure check must not be used for
other purposes.
Be careful not to scratch or put debris around connection area when servicing, so that the quick
connector maintains sealability with O-rings inside.
When installing fuel hose quick connector, refer to EM-17, "INTAKE MANIFOLD" .
1. Release fuel pressure to zero. Refer to EC-48, "
FUEL PRESSURE RELEASE" .
2. Prepare fuel hose and fuel hose clamp for fuel pressure check, and connect fuel pressure gauge.
Use suitable fuel hose for fuel pressure check (genuine NISSAN fuel hose without quick connector).
To avoid unnecessary force or tension to hose, use moderately long fuel hose for fuel pressure check.
Do not use the fuel hose for checking fuel pressure with damage or cracks on it.
Use Pressure Gauge to check fuel pressure.
3. Remove fuel hose. Refer to EM-17, "
INTAKE MANIFOLD" .
Do not twist or kink fuel hose because it is plastic hose.
Do not remove fuel hose from quick connector.
Keep the original fuel hose to be free from intrusion of dust or foreign substances with a suitable cover.
4. Install the fuel pressure gauge as shown in the figure.
Wipe off oil or dirt from hose insertion part using cloth moist-
ened with gasoline.
Apply proper amount of gasoline between top of the fuel tube
and No.1 spool.
Insert fuel hose for fuel pressure check until it touches the
No.1 spool on fuel tube.
Use NISSAN genuine hose clamp (part number: 16439
N4710 or 16439 40U00).
When reconnecting fuel line, always use new clamps.
When reconnecting fuel hose, check the original fuel hose for
damage and abnormality.
Use a torque driver to tighten clamps.
Install hose clamp to the position within 1 - 2 mm (0.04 - 0.08
in).
Make sure that clamp screw does not contact adjacent parts.
5. After connecting fuel hose for fuel pressure check, pull the hose
with a force of approximately 98 N (10 kg, 22 lb) to confirm fuel
tube does not come off.
6. Turn ignition switch ON, and check for fuel leakage.
7. Start engine and check for fuel leakage.
8. Read the indication of fuel pressure gauge.
Do not perform fuel pressure check with system operating. Fuel pressure gauge may indicate false
readings.
During fuel pressure check, confirm for fuel leakage from fuel connection every 3 minutes.
9. If result is unsatisfactory, go to next step.
10. Check the following.
Fuel hoses and fuel tubes for cloggingTightening
torque:1 - 1.5 N·m (0.1 - 0.15 kg-m, 9 - 13 in-lb)
At idling: Approximately 350 kPa (3.5 bar, 3.57 kg/cm
2 , 51 psi)
PBIB0669E
PBIB1977E

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NISSAN X-TRAIL 2003 Service Repair Manual EC-50
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BASIC SERVICE PROCEDURE

Fuel filter for clogging
Fuel pump
Fuel pressure regulator for clogging
If OK, replace fuel pressure regulator.
If NG, repair or replace.

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NISSAN X-TRAIL 2003 Service Repair Manual ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-51
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EC

ON BOARD DIAGNOSTIC (OBD) SYSTEMPFP:00028
IntroductionEBS010LJ
The ECM has an on board diagnostic system, which

ON BOARD DIAGNOSTIC (OBD) SYSTEM
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ON BOARD DIAGNOSTIC (OBD) SYSTEMPFP:00028
IntroductionEBS010LJ
The ECM has an on board diagnostic system, which detects malfunctions related to engine sensors or actua-
tors. The ECM also records various emission-related diagnostic information including:
The above information can be checked using procedures listed in the table below.
×: Applicable —: Not applicable
*1: 1st trip DTCs for self-diagnoses concerning SRT items cannot be shown on the GST display.
*2: When DTC and 1st trip DTC simultaneously appear on the display, they cannot be clearly distinguished from each other.
The malfunction indicator (MI) on the instrument panel lights up when the same malfunction is detected in two
consecutive trips (Two trip detection logic), or when the ECM enters fail-safe mode. (Refer to EC-77
.)
Two Trip Detection LogicEBS010LK
When a malfunction is detected for the first time, 1st trip DTC and 1st trip Freeze Frame data are stored in the
ECM memory. The MI will not light up at this stage. <1st trip>
If the same malfunction is detected again during the next drive, the DTC and Freeze Frame data are stored in
the ECM memory, and the MI lights up. The MI lights up at the same time when the DTC is stored. <2nd trip>
The “trip” in the “Two Trip Detection Logic” means a driving mode in which self-diagnosis is performed during
vehicle operation. Specific on board diagnostic items will cause the ECM to light up or blink the MI, and store
DTC and Freeze Frame data, even in the 1st trip, as shown below.
×: Applicable —: Not applicable
When there is an open circuit on MI circuit, the ECM can not warn the driver by lighting up MI when there is
trouble on engine control system.
Therefore, when electrical controlled throttle and part of ECM related diagnoses are continuously detected as
NG for 5 trips, ECM warns the driver that engine control system has trouble and MI circuit is open by means of
operating fail-safe function.
Emission-related diagnostic information ISO Standard
Diagnostic Trouble Code (DTC) Mode 3 of ISO 15031-5
Freeze Frame data Mode 2 of ISO 15031-5
System Readiness Test (SRT) code Mode 1 of ISO 15031-5
1st Trip Diagnostic Trouble Code (1st Trip DTC) Mode 7 of ISO 15031-5
1st Trip Freeze Frame data
Test values and Test limits Mode 6 of ISO 15031-5
Calibration ID Mode 9 of ISO 15031-5
DTC 1st trip DTCFreeze Frame
data1st trip Freeze
Frame dataSRT code Test value
CONSULT-II×× × × ×—
GST×
×*
1×—××
ECM×
×*
2————
ItemsMI DTC 1st trip DTC
1st trip 2nd trip
1st trip
displaying2nd trip
displaying1st trip
displaying2nd trip
display-
ing BlinkingLighting
upBlinkingLighting
up
Misfire (Possible three way cata-
lyst damage) — DTC: P0300 -
P0304 is being detected×———— —×—
Misfire (Possible three way cata-
lyst damage) — DTC: P0300 -
P0304 is being detected——×——×——
One trip detection diagnoses
(Refer to EC-19
)—×——×———
Except above — — —×—××—

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NISSAN X-TRAIL 2003 Service Repair Manual EC-52
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The fail-safe function also operates when above diagnoses except MI circuit are detected and demands the
driver to repair the trouble.
Emi

EC-52
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ON BOARD DIAGNOSTIC (OBD) SYSTEM

The fail-safe function also operates when above diagnoses except MI circuit are detected and demands the
driver to repair the trouble.
Emission-related Diagnostic InformationEBS010LL
EMISSION-RELATED DIAGNOSTIC INFORMATION ITEMS
Engine operating condition in fail-safe mode Engine speed will not rise more than 2,500 rpm due to the fuel cut
Items
(CONSULT-II screen terms)DTC*
1
SRT codeTe s t Va l v e /
Test Limit
(GST only)1st trip DTC Reference page
CONSULT-II
GST*
2ECM*3
CAN COMM CIRCUIT U1000
1000*5———EC-132
CAN COMM CIRCUIT U1001
1001*5——×EC-132
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0000————
INT/V TIM CONT-B1 P0011 0011 — —×EC-135
HO2S1 HTR (B1) P0031 0031××
×*4EC-138
HO2S1 HTR (B1) P0032 0032××
×*4EC-138
HO2S2 HTR (B1) P0037 0037××
×*4EC-144
HO2S2 HTR (B1) P0038 0038××
×*4EC-144
MAF SEN/CIRCUIT P0102 0102 — — —EC-149
MAF SEN/CIRCUIT P0103 0103 — — —EC-149
IAT SEN/CIRCUIT P0112 0112 — —×EC-156
IAT SEN/CIRCUIT P0113 0113 — —×EC-156
ECT SEN/CIRCUIT P0117 0117 — — —EC-162
ECT SEN/CIRCUIT P0118 0118 — — —EC-162
TP SEN 2/CIRC P0122 0122 — — —EC-168
TP SEN 2/CIRC P0123 0123 — — —EC-168
HO2S1 (B1) P0132 0132 —××EC-176
HO2S1 (B1) P0133 0133××
×*4EC-183
HO2S1 (B1) P0134 0134 —××EC-193
HO2S2 (B1) P0138 0138 —××EC-201
HO2S2 (B1) P0139 0139××
×*4EC-208
FUEL SYS-LEAN-B1 P0171 0171 — —×EC-216
FUEL SYS-RICH-B1 P0172 0172 — —×EC-223
TP SEN 1/CIRC P0222 0222 — — —EC-229
TP SEN 1/CIRC P0223 0223 — — —EC-229
MULTI CYL MISFIRE P0300 0300 — —×EC-237
CYL 1 MISFIRE P0301 0301 — —×EC-237
CYL 2 MISFIRE P0302 0302 — —×EC-237
CYL 3 MISFIRE P0303 0303 — —×EC-237
CYL 4 MISFIRE P0304 0304 — —×EC-237
KNOCK SEN/CIRC-B1 P0327 0327 — —×EC-242
KNOCK SEN/CIRC-B1 P0328 0328 — —×EC-242
CKP SEN/CIRCUIT P0335 0335 — —×EC-247
CMP SEN/CIRC-B1 P0340 0340 — —×EC-254
TW CATALYST SYS-B1 P0420 0420××
×*4EC-261

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NISSAN X-TRAIL 2003 Service Repair Manual ON BOARD DIAGNOSTIC (OBD) SYSTEM
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PURG VOLUME CONT/V P0444 0444 — —×EC-265
PURG VOLUME CONT/V P0445 0445 — —×EC-265
VEH SPEED SEN/CIRC P0

ON BOARD DIAGNOSTIC (OBD) SYSTEM
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PURG VOLUME CONT/V P0444 0444 — —×EC-265
PURG VOLUME CONT/V P0445 0445 — —×EC-265
VEH SPEED SEN/CIRC P0500 0500 — —×EC-272
PW ST P SEN/CIRC P0550 0550 — —×EC-274
ECM P0605 0605 — —×EC-279
PNP SW/CIRC P0705 0705 — —×AT-100
ATF TEMP SEN/CIRC P0710 0710 — —×AT-106
VEH SPD SEN/CIR AT P0720 P0720 — —×AT- 11 2
ENGINE SPEED SIG P0725 0725 — —×AT- 11 9
A/T 1ST GR FNCTN P0731 0731 — —×AT-125
A/T 2ND GR FNCTN P0732 0732 — —×AT-130
A/T 3RD GR FNCTN P0733 P0733 — —×AT-135
A/T 4TH GR FNCTN P0734 P0734 — —×AT-140
TCC SOLENOID/CIRC P0740 0740 — —×AT-148
L/PRESS SOL/CIRC P0745 0745 — —×AT-154
SFT SOL A/CIRC P0750 0750 — — —AT-161
SFT SOL B/CIRC P0755 0755 — — —AT-167
ECM BACK UP/CIRC P1065 1065 — —×EC-282
I N T / V T I M V / C I R - B 1 P 1111 1111 — —×EC-286
ETC ACTR P1121 1121 — — — EC-290
ETC FUNCTION/CIRC P1122 1122 — — —EC-292
ETC MOT PWR P1124 1124 — — —EC-302
ETC MOT PWR P1126 1126 — — —EC-302
ETC MOT P1128 1128 — — —EC-310
HO2S1 (B1) P1143 1143××
×*4EC-318
HO2S1 (B1) P1144 1144××
×*4EC-324
HO2S2 (B1) P1146 1146××
×*4EC-330
HO2S2 (B1) P1147 1147××
×*4EC-338
TCS CU FUNCTN*6P1211 1211 — —×EC-346
TCS/CIRC*6P1212 1212 — —×EC-347
ENG OVER TEMP P1217 1217 — —×EC-348
CTP LEARNING P1225 1225 — —×EC-364
CTP LEARNING P1226 1226 — —×EC-366
SENSOR POWER/CIRC P1229 1229 — — —EC-368
NATS MALFUNCTIONP1610 -
P16151610 - 1615 — —×EC-64
TP SEN/CIRC A/T P1705 1705 — — —AT-173
P-N POS SW/CIRCUIT P1706 1706 — —×EC-373
V/SP SEN (A/T OUT) P1720 1720 — —×EC-378
O/R CLTCH SOL/CIRC P1760 1760 — —×AT-178
BRAKE SW/CIRCUIT P1805 1805 — —×EC-380
APP SEN 1/CIRC P2122 2122 — — —EC-386
Items
(CONSULT-II screen terms)DTC*
1
SRT codeTe s t Va l v e /
Te s t L i m i t
(GST only)1st trip DTC Reference page
CONSULT-II
GST*
2ECM*3

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NISSAN X-TRAIL 2003 Service Repair Manual EC-54
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*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by ISO 15031-5.
*3: In Diagnostic Test Mode II (Self-diagnostic

EC-54
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*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by ISO 15031-5.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
*4: This is not displayed with GST.
*5: The troubleshooting for this DTC needs CONSULT-II.
*6: For models with ESP system.
DTC AND 1ST TRIP DTC
The 1st trip DTC (whose number is the same as the DTC number) is displayed for the latest self-diagnostic
result obtained. If the ECM memory was cleared previously, and the 1st trip DTC did not reoccur, the 1st trip
DTC will not be displayed.
If a malfunction is detected during the 1st trip, the 1st trip DTC is stored in the ECM memory. The MI will not
light up (two trip detection logic). If the same malfunction is not detected in the 2nd trip (meeting the required
driving pattern), the 1st trip DTC is cleared from the ECM memory. If the same malfunction is detected in the
2nd trip, both the 1st trip DTC and DTC are stored in the ECM memory and the MI lights up. In other words,
the DTC is stored in the ECM memory and the MI lights up when the same malfunction occurs in two consec-
utive trips. If a 1st trip DTC is stored and a non-diagnostic operation is performed between the 1st and 2nd
trips, only the 1st trip DTC will continue to be stored. For malfunctions that blink or light up the MI during the
1st trip, the DTC and 1st trip DTC are stored in the ECM memory.
Procedures for clearing the DTC and the 1st trip DTC from the ECM memory are described in EC-63, "
HOW
TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION" .
For malfunctions in which 1st trip DTCs are displayed, refer to EC-52
. These items are required by legal reg-
ulations to continuously monitor the system/component. In addition, the items monitored non-continuously are
also displayed on CONSULT-II.
1st trip DTC is specified in Mode 7 of ISO 15031-5. 1st trip DTC detection occurs without lighting up the MI
and therefore does not warn the driver of a malfunction. However, 1st trip DTC detection will not prevent the
vehicle from being tested, for example during Inspection/Maintenance (I/M) tests.
When a 1st trip DTC is detected, check, print out or write down and erase (1st trip) DTC and Freeze Frame
data as specified in Work Flow procedure Step II, refer to EC-74
. Then perform DTC Confirmation Procedure
or Overall Function Check to try to duplicate the malfunction. If the malfunction is duplicated, the item requires
repair.
How to Read DTC and 1st Trip DTC
DTC and 1st trip DTC can be read by the following methods.
With CONSULT-II
With GST
CONSULT-II or GST (Generic Scan Tool) Examples: P0340, P0740, P0745, etc.
This DTC is prescribed by ISO 15031-5.
(CONSULT-II also displays the malfunctioning component or system.)
No Tools
The number of blinks of the MI in the Diagnostic Test Mode II (Self-Diagnostic Results) indicates the DTC.
Example: 0102, 0340 etc.
This DTC is controlled by NISSAN.
1st trip DTC No. is the same as DTC No.
Output of a DTC indicates a malfunction. However, GST or the Diagnostic Test Mode II do not indi-
cate whether the malfunction is still occurring or has occurred in the past and has returned to nor-
mal. CONSULT-II can identify malfunction status as shown below. Therefore, using CONSULT-II (if
available) is recommended.
APP SEN 1/CIRC P2123 2123 — — —EC-386
APP SEN 2/CIRC P2127 2127 — — —EC-393
APP SEN 2/CIRC P2128 2128 — — —EC-393
TP SENSOR P2135 2135 — — —EC-401
APP SENSOR P2138 2138 — — —EC-409
Items
(CONSULT-II screen terms)DTC*
1
SRT codeTe s t Va l v e /
Test Limit
(GST only)1st trip DTC Reference page
CONSULT-II
GST*
2ECM*3

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