NISSAN X-TRAIL 2005 Service Repair Manual

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-997
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TC BOOST SOL/CIRC P0045 0045××EC-1061
HIGH FUEL PRESS P0088 0088××EC-1066
FUEL PUMP P0089 0089××EC-1068
FUEL LEAK P0093 0093××EC-1071
MAF SENSOR P0101 0101××EC-1075
MAF SEN/CIRCUIT P0102 0102××EC-1083
MAF SEN/CIRCUIT P0103 0103××EC-1083
IAT SEN/CIRCUIT P0112 0112××EC-1088
IAT SEN/CIRCUIT P0113 0113××EC-1088
ECT SEN/CIRC P0117 0117××EC-1093
ECT SEN/CIRC P0118 0118××EC-1093
APP SEN 1/CIRCUIT P0122 0122 — —EC-1099
APP SEN 1/CIRCUIT P0123 0123 — —EC-1099
FUEL TEMP SEN/CIRC P0182 0182××EC-1106
FUEL TEMP SEN/CIRC P0183 0183××EC-1106
FRP SEN/CIRC P0192 0192××EC-1110
FRP SEN/CIRC P0193 0193××EC-1110
INJECTOR P0200 0200××EC-1116
CYL1 INJECTOR P0201 0201××EC-1118
CYL2 INJECTOR P0202 0202××EC-1118
CYL3 INJECTOR P0203 0203××EC-1118
CYL4 INJECTOR P0204 0204××EC-1118
ENG OVER TEMP P0217 0217 —×EC-1124
APP SEN 2/CIRCUIT P0222 0222 — —EC-1138
APP SEN 2/CIRCUIT P0223 0223 — —EC-1138
TC SYSTEM P0234 0234 — —EC-1145
TC BOOST SEN/CIRC P0237 0237××EC-1151
TC BOOST SEN/CIRC P0238 0238××EC-1151
CKP SEN/CIRCUIT P0335 0335××EC-1157
CKP SENSOR P0336 0336××EC-1163
CMP SEN/CIRCUIT P0340 0340××EC-1169
CMP SENSOR P0341 0341××EC-1175
GLOW RELAY P0380 0380××EC-1182
EGR SYSTEM P0401 0401××EC-1186
EGR VALVE P0404 0404××EC-1193
VEHICLE SPEED P0501 0501 — —EC-1200
VEHICLE SPEED P0502 0502 — —EC-1202
VEHICLE SPEED P0503 0503 — —EC-1204
BRAKE SW/CIRCUIT P0504 0504 — —EC-1206
BATTERY VOLTAGE P0563 0563 — —EC-1215
STRG SW/CIRC P0580 0580 — —EC-1218
STRG SW/CIRC P0581 0581 — —EC-1218
Items
(CONSULT-II screen item) DTC*
11st/2nd trip
DTCMI lighting
upReference page
CONSULT-II
GST*
2ECM*3

EC-998
[YD (WITH EURO-OBD)]
ON BOARD DIAGNOSTIC (OBD) SYSTEM

*1: 1st trip DTC No. and 2nd trip DTC No. are the same as DTC No.
*2: This number is prescribed by ISO 15031-6.
*3: In Diagnostic Test Mode II (Self diagnostic results), this number is controlled by NISSAN.
DTC AND 1ST/2ND TRIP DTC
The number of 1st/2nd trip DTC is the same as the number of DTC.
When a malfunction is detected during 1st trip, 1st trip DTC is stored in the ECM memory. MI does not illumi-
nate at this time. When the same malfunction is detected in the next trip (2nd trip), 2nd trip DTC is stored in the
ECM memory and 1st trip DTC is cleared from the ECM memory. MI does not illuminate at this time. In addi-
ECM P0605 0605××EC-1227
ECM P0606 0606××EC-1229
FUEL PUMP/CIRC P0628 0628××EC-1231
FUEL PUMP/CIRC P0629 0629××EC-1231
SENSOR PWR/CIRC1 P0642 0642××EC-1236
SENSOR PWR/CIRC1 P0643 0643××EC-1236
SENSOR PWR/CIRC2 P0652 0652××EC-1240
SENSOR PWR/CIRC2 P0653 0653××EC-1240
ECM RELAY P0686 0686 — —EC-1245
TCS C/U FUNCTN P1211 1211 — —EC-1249
TCS/CIRC P1212 1212 — —EC-1250
INJ ADJ RES/CIRC1 P1260 1260××EC-1251
INJ ADJ RES/CIRC1 P1261 1261××EC-1251
INJ ADJ RES/CIRC2 P1262 1262××EC-1251
INJ ADJ RES/CIRC2 P1263 1263××EC-1251
INJ ADJ RES/CIRC3 P1264 1264××EC-1251
INJ ADJ RES/CIRC3 P1265 1265××EC-1251
INJ ADJ RES/CIRC4 P1266 1266××EC-1251
INJ ADJ RES/CIRC4 P1267 1267××EC-1251
INJECTOR 1 P1268 1268 — —EC-1257
INJECTOR 2 P1269 1269 — —EC-1257
INJECTOR 3 P1270 1270 — —EC-1257
INJECTOR 4 P1271 1271 — —EC-1257
FRP RELIEF VALVE P1272 1272××EC-1263
FUEL PUMP P1273 1273××EC-1270
FUEL PUMP P1274 1274 —×EC-1275
FUEL PUMP P1275 1275 —×EC-1280
NATS MALFUNTION P1610 - P1617 1610 - 1617 — —EC-1001
APP SENSOR P2135 2135 — —EC-1285
INJ PWR/CIRC P2146 2146××EC-1292
INJECTOR/CIRC P2147 2147××EC-1297
INJECTOR/CIRC P2148 2148××EC-1297
INJ PWR/CIRC P2149 2149××EC-1292
BARO SEN/CIRC P2228 2228××EC-1303
BARO SEN/CIRC P2229 2229××EC-1303
Items
(CONSULT-II screen item) DTC*
11st/2nd trip
DTCMI lighting
upReference page
CONSULT-II
GST*
2ECM*3

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-999
[YD (WITH EURO-OBD)]
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EC

tion, DTC is stored in the ECM memory and MI lights up when the same malfunction is detected during the fol-
lowing consecutive trip (3rd trip).
The procedure for erasing DTC, 1st trip DTC, and 2nd trip DTC from the ECM memory is described in EC-999,
"HOW TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION" .
For malfunctions in which 1st/2nd trip DTC are displayed, Refer to EC-996, "
Emission-related Diagnostic Infor-
mation" .
1st/2nd trip DTC is specified in Service $07 of ISO15031-5. 1st/2nd trip DTC detection occurs without lighting
up MI and therefore does not warn the driver of a malfunction.
When 1st/2nd trip DTC is detected, check, print out or write down, and erase 1st/2nd trip DTC as specified
with step II of Work Flow, refer to EC-1008, "
WORK FLOW" . Then perform DTC Confirmation Procedure or
Overall Function Check to try to duplicate the malfunction. If the malfunction is duplicated, it is necessary to
investigate the cause again.
How to Read DTC and 1st/2nd Trip DTC
DTC and 1st/2nd trip DTC can be read by the following procedures.
With CONSULT-II
With GST
CONSULT-II or GST (Generic Scan Tool): Examples: P0117, P0335, P1260, etc.
These numbers are prescribed by ISO 15031-6.
(CONSULT-II also displays the malfunctioning parts and systems.)
A sample of CONSULT-II display for DTC and 1st/2nd trip DTC is
shown in the figure. DTC and 1st/2nd trip DTC are displayed in the
“SELF-DIAG RESULTS” mode of CONSULT-II.
“TIME” data shows how many times the vehicle was driven after the
last detection of DTC or 1st/2nd trip DTC. When DTC or 1st/2nd trip
DTC has been detected currently, “TIME” becomes “0”.

CONSULT-II displays for DTC and 1st/2nd trip DTC become the
same.

The output of a DTC indicates a malfunction. However, GST
does not indicate whether the malfunction is still occurring or
has occurred in the past and has returned to normal. CONSULT-
II can identify the malfunction status. Therefore the use of CON-
SULT-II (If available) is recommended.
FREEZE FRAME DATA
ECM records driving conditions such as calculated load value, engine coolant temperature, engine speed,
vehicle speed, and intake manifold pressure at the moment a malfunction is detected.
The data stored together with DTC is called Freeze Frame Data, and is displayed on CONSULT-II or GST.
When 1st/2nd trip DTC is detected, Freeze Frame Data is not recorded.
Only a set of Freeze Frame Data can be stored in the ECM memory. When ECM records Freeze Frame Data,
and another Freeze Frame Data is generated after that, the first (original) Freeze Frame Data is not updated in
ECM and it remains.
When the DTC is erased from ECM memory, Freeze Frame Data is erased with DTC. The procedure for eras-
ing DTC is described in EC-999, "
How to Erase DTC" .
HOW TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION
How to Erase DTC
With CONSULT-II
The emission related diagnostic information in the ECM can be erased by selecting “ERASE” in the “SELF-
DIAG RESULTS” mode with CONSULT-II.
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 5
seconds and then turn it ON (engine stopped) again.
2. Touch “ENGINE”.
3. Touch “SELF-DIAG RESULTS”.
PBIB2022E

EC-1000
[YD (WITH EURO-OBD)]
ON BOARD DIAGNOSTIC (OBD) SYSTEM

4. Touch “ERASE”. (The DTC in the ECM will be erased.)
With GST
The emission related diagnostic information in the ECM can be erased by selecting Service $04 with GST.
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 5
seconds and then turn it ON (engine stopped) again.
2. Select Service $04 with GST (Generic Scan Tool).

If the battery is disconnected, the emission-related diagnostic information will be lost within 24
hours.

The following data are cleared when the ECM memory is erased.
–Diagnostic trouble codes
–1st trip diagnostic trouble codes
–2nd trip diagnostic trouble codes
–Freeze frame data
Actual work procedures are explained using a DTC as an example. Be careful so that not only the DTC, but all
of the data listed above, are cleared from the ECM memory during work procedures.
No Tools
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once.
2. Wait at least 10 seconds and then turn it ON (engine stopped) again.
3. Change the diagnostic test mode from Mode II to Mode I by depressing the accelerator pedal. Refer to
EC-1002, "
HOW TO SWITCH DIAGNOSTIC TEST MODE" .

If the battery is disconnected, the emission-related diagnostic information will be lost within 24
hours.

The following data are cleared when the ECM memory is erased.
–Diagnostic trouble codes
–Freeze frame data
–Fuel pump learning value
–Others
Actual work procedures are explained using a DTC as an example. Be careful so that not only the DTC, but all
of the data listed above, are cleared from the ECM memory during work procedures.
PBIB2452E

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-1001
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NATS (Nissan Anti-theft System)EBS01177

If the security indicator lights up with the ignition switch in
the ON position or "NATS MALFUNCTION" is displayed on
"SELF-DIAG RESULTS" screen, perform self-diagnostic
results mode with CONSULT-II using NATS program card.
Refer to NATS (Nissan Anti-Theft System) in BL section.

Confirm no self-diagnostic results of NATS is displayed
before touching "ERASE" in "SELF-DAIG RESULTS" mode
with CONSULT-II.

When replacing ECM, initialization of NATS system and reg-
istration of all NATS ignition key IDs must be carried out
with CONSULT-II using NATS program card.
Therefore, be sure to receive all keys from vehicle owner.
Regarding the procedure of NATS initialization and NATS ignition key ID registration, refer to CON-
SULT-II operation manual, NATS.
Malfunction Indicator (MI)EBS01F87
DESCRIPTION
The MI is located on the instrument panel.
1. The MI will light up when the ignition switch is turned ON without
the engine running. This is a bulb check.

If the MI does not light up, refer to EC-1699, "MI & DATA LINK
CONNECTORS" .
2. When the engine is started, the MI should go off.
If the MI remains on, the on board diagnostic system has
detected an engine system malfunction.
ON BOARD DIAGNOSTIC SYSTEM FUNCTION
The on board diagnostic system has the following three functions.
SEF543X
SAT652J
Diagnostic Test
ModeKEY and ENG.
Statu sFunction Explanation of Function
Mode I Ignition switch in
ON position
Engine stoppedBULB CHECK This function checks the MI bulb for damage (blown, open
circuit, etc.).
If the MI does not come on, check MI circuit. (See EC-
1699, "MI & DATA LINK CONNECTORS" .)
Engine running MALFUNCTION
WARNINGThis is a usual driving condition. When ECM detects a mal-
function, the MI will light up to inform the driver that a mal-
function has been detected.
Mode II Ignition switch in
ON position
Engine stoppedSELF-DIAGNOSTIC
RESULTSThis function allows DTCs to be read.

EC-1002
[YD (WITH EURO-OBD)]
ON BOARD DIAGNOSTIC (OBD) SYSTEM

HOW TO SWITCH DIAGNOSTIC TEST MODE
NOTE:

It is better to count the time accurately with a clock.

It is impossible to switch the diagnostic mode when an accelerator pedal position sensor circuit
has a malfunction.

Always ECM returns to Diagnostic Test Mode I after ignition switch is turned OFF.
How to Set Diagnostic Test Mode II (Self-diagnostic Results)
1. Confirm that accelerator pedal is fully released, turn ignition switch ON and wait 3 seconds.
2. Repeat the following procedure quickly five times within 5 seconds.
a. Fully depress the accelerator pedal.
b. Fully release the accelerator pedal.
3. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 10 seconds until the MI starts
blinking.
4. Fully release the accelerator pedal.
ECM has entered to Diagnostic Test Mode II (Self-diagnostic results).
PBIB0092E

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-1003
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How to Erase Diagnostic Test Mode II (Self-diagnostic Results)
1. Set ECM in Diagnostic Test Mode II (Self-diagnostic results). Refer to EC-1002, "How to Set Diagnostic
Test Mode II (Self-diagnostic Results)" .
2. Fully depress the accelerator pedal and keep it for more than 10 seconds.
The emission-related diagnostic information has been erased from the backup memory in the ECM.
3. Fully release the accelerator pedal, and confirm the DTC 0000 is displayed.
DIAGNOSTIC TEST MODE I — BULB CHECK
In this mode, the MI on the instrument panel should stay ON. If it remains OFF, check the bulb. Refer to EC-
1348, "MI & DATA LINK CONNECTORS" .
DIAGNOSTIC TEST MODE I — MALFUNCTION WARNING
These DTC numbers are clarified in Diagnostic Test Mode II (SELF-DIAGNOSTIC RESULTS)
DIAGNOSTIC TEST MODE II — SELF-DIAGNOSTIC RESULTS
In this mode, the DTC is indicated by the number of blinks of the MI as shown below. A DTC will be used as an
example for how to read a code.
A particular trouble code can be identified by the number of four-digit numeral flashes. The “zero” is indicated
by the number of ten flashes. The length of time the 1,000th-digit numeral flashes on and off is 1.2 seconds
consisting of an ON (0.6-second) - OFF (0.6-second) cycle.
The 100th-digit numeral and lower digit numerals consist of a 0.3-second ON and 0.3-second OFF cycle.
A change from one digit numeral to another occurs at an interval of 1.0-second OFF. In other words, the later
numeral appears on the display 1.3 seconds after the former numeral has disappeared.
A change from one trouble code to another occurs at an interval of 1.8-second OFF.
In this way, all the detected malfunctions are classified by their DTC numbers. The DTC 0000 refers to no mal-
function. (See EC-973, "
INDEX FOR DTC" )
How to Erase Diagnostic Test Mode II (Self-diagnostic Results)
The DTC can be erased from the back up memory in the ECM by depressing accelerator pedal. Refer to EC-
1003, "How to Erase Diagnostic Test Mode II (Self-diagnostic Results)" .

If the battery is disconnected, the DTC will be lost from the backup memory within 24 hours.

Be careful not to erase the stored memory before starting trouble diagnoses.
MI Condition
ON When the malfunction is detected.
OFF No malfunction.
PBIA3905E

EC-1004
[YD (WITH EURO-OBD)]
ON BOARD DIAGNOSTIC (OBD) SYSTEM

OBD System Operation ChartEBS011UM
RELATIONSHIP BETWEEN MI, 1ST/2ND TRIP DTC, DTC, AND DETECTABLE ITEMS

When the malfunction is detected for the first time, 1st trip DTC is stored in the ECM memory.

When the same malfunction is detected during 2nd consecutive trip, 2nd trip DTC is stored and 1st trip
DTC is cleared.

When the same malfunction is detected during 3rd consecutive trip, DTC and Freeze Frame Data are
stored and MI illuminates. Refer to EC-996, "
Three Trip Detection Logic and One Trip Detection Logic" for
details.1st/2nd trip DTC are cleared from the ECM memory.

MI will go off after the vehicle is driven 3 consecutive times with no malfunction (driving pattern A).

1st/2nd trip DTC, DTC, and Freeze Frame Data will be stored until the vehicle is driven 41 times (driving
pattern B) without the same malfunction recurring. “TIME” data displayed in the “SELF-DIAG RESULTS”
mode of CONSULT-II shows the number of times the vehicle is driven without the same malfunction recur-
ring.
SUMMARY CHART
Refer to EC-1006 for details of pattern A and B.Items Trip Counter Driving Pattern
MI (goes off) 3 2 A
DTC, Freeze Frame Data (clear) 41 40 B
1st/2nd Trip DTC (clear) 41 40 B

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-1005
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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

EC-1006
[YD (WITH EURO-OBD)]
ON BOARD DIAGNOSTIC (OBD) SYSTEM

<Driving Pattern A>
Driving pattern A means the vehicle operation as follows:
Engine speed should go over 500 rpm at least 5 seconds and the DTC Confirmation Procedure is performed.

The A counter will be cleared when the same malfunction is detected.

The A counter will be counted up when the same malfunction is not detected.

The MI will go off when the A counter reaches 3.
<Driving Pattern B>
Driving pattern B means the vehicle operation as follows:
Driving pattern A and (1)-(3) are satisfied.

The B counter will be cleared when the same malfunction is detected.

The B counter will be counted up when the same malfunction is not detected.

The DTC will not be displayed after the B counter reaches 40.
PBIB2049E