sensor NISSAN X-TRAIL 2003 Service Manual PDF
[x] Cancel search | Manufacturer: NISSAN, Model Year: 2003, Model line: X-TRAIL, Model: NISSAN X-TRAIL 2003Pages: 4179, PDF Size: 87.27 MB
Page 419 of 4179
![NISSAN X-TRAIL 2003 Service Manual PDF ENGINE CONTROL SYSTEM
EC-41
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M/T MODELS WITH ESP
System Diagram
Input/output Signal Chart
T: Transmit R: Receive
*1: YD engine models only
*2: QR engi NISSAN X-TRAIL 2003 Service Manual PDF ENGINE CONTROL SYSTEM
EC-41
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M/T MODELS WITH ESP
System Diagram
Input/output Signal Chart
T: Transmit R: Receive
*1: YD engine models only
*2: QR engi](/img/5/57404/w960_57404-418.png)
ENGINE CONTROL SYSTEM
EC-41
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M/T MODELS WITH ESP
System Diagram
Input/output Signal Chart
T: Transmit R: Receive
*1: YD engine models only
*2: QR engine models only
PKIA6459E
Signals ECMESP/TCS/ABS
control unitSteering angle
sensor4WD control
unitCombination
meter
Stop lamp switch signal T R
Engine speed signal T R R R
Engine coolant temperature signal TR
Accelerator pedal position signal T R R
A/C switch signal*
1RT
A/C compressor feedback signal*
2TR
Vehicle speed signalTRR
RT
ABS warning lamp signal T R
Brake warning lamp signal T R
SLIP indicator lamp signal T R
ESP OFF indicator lamp signal T R
4WD warning lamp signalTR
4WD mode indicator lamp signalTR
Parking brake switch signalRT
MI signal TR
Glow indicator lamp signal*
1TR
Steering angle sensor signal R T
Page 420 of 4179
![NISSAN X-TRAIL 2003 Service Manual PDF EC-42
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ENGINE CONTROL SYSTEM
A/T MODELS WITH ESP
System Diagram
Input/output Signal Chart
T: Transmit R: Receive
PKIA6460E
Signals ECM TCMESP/TCS/
ABS control
unitSte ering
NISSAN X-TRAIL 2003 Service Manual PDF EC-42
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ENGINE CONTROL SYSTEM
A/T MODELS WITH ESP
System Diagram
Input/output Signal Chart
T: Transmit R: Receive
PKIA6460E
Signals ECM TCMESP/TCS/
ABS control
unitSte ering](/img/5/57404/w960_57404-419.png)
EC-42
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ENGINE CONTROL SYSTEM
A/T MODELS WITH ESP
System Diagram
Input/output Signal Chart
T: Transmit R: Receive
PKIA6460E
Signals ECM TCMESP/TCS/
ABS control
unitSte ering
angle sensor4WD control
unitCombination
meter
Stop lamp switch signalRT
TR
P·N range signal R T
A/T position indicator lamp signal T R R
O/D OFF indicator signal T R
Overdrive control switch signal R T
Closed throttle position signal T R
Wide open throttle position signal T R
Engine speed signal T R R R
Engine coolant temperature signal TR
Accelerator pedal position signal T R R
Output shaft revolution signal R T
A/C compressor feedback signal TR
Vehicle speed signalTRR
RT
ABS warning lamp signal T R
Brake warning lamp signal T R
SLIP indicator lamp signal T R
ESP OFF indicator lamp signal T R
4WD warning lamp signalTR
4WD mode indicator lamp signalTR
Parking brake switch signalRT
MI signal TR
Steering angle sensor signal R T
Page 421 of 4179
![NISSAN X-TRAIL 2003 Service Manual PDF ENGINE CONTROL SYSTEM
EC-43
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Engine and A/T integratedTR
RT
A/T self-diagnosis signal R TSignals ECM TCMESP/TCS/
ABS control
unitSteering
angle sensor4 NISSAN X-TRAIL 2003 Service Manual PDF ENGINE CONTROL SYSTEM
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Engine and A/T integratedTR
RT
A/T self-diagnosis signal R TSignals ECM TCMESP/TCS/
ABS control
unitSteering
angle sensor4](/img/5/57404/w960_57404-420.png)
ENGINE CONTROL SYSTEM
EC-43
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Engine and A/T integratedTR
RT
A/T self-diagnosis signal R TSignals ECM TCMESP/TCS/
ABS control
unitSteering
angle sensor4WD control
unitCombination
meter
Page 423 of 4179
![NISSAN X-TRAIL 2003 Service Manual PDF BASIC SERVICE PROCEDURE
EC-45
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Method B
1. Remove No. 1 ignition coil.
2. Connect No. 1 ignition coil and No. 1 spark plug with suitable
high-tension wi NISSAN X-TRAIL 2003 Service Manual PDF BASIC SERVICE PROCEDURE
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Method B
1. Remove No. 1 ignition coil.
2. Connect No. 1 ignition coil and No. 1 spark plug with suitable
high-tension wi](/img/5/57404/w960_57404-422.png)
BASIC SERVICE PROCEDURE
EC-45
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Method B
1. Remove No. 1 ignition coil.
2. Connect No. 1 ignition coil and No. 1 spark plug with suitable
high-tension wire as shown, and attach timing light clamp to this
wire.
3. Check ignition timing.
Accelerator Pedal Released Position LearningEBS010LF
DESCRIPTION
Accelerator Pedal Released Position Learning is an operation to learn the fully released position of the accel-
erator pedal by monitoring the accelerator pedal position sensor output signal. It must be performed each time
harness connector of accelerator pedal position sensor or ECM is disconnected.
OPERATION PROCEDURE
1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch ON and wait at least 2 seconds.
PBIB1982E
PBIB1976E
SEF166Y
PBIB0514E
Page 424 of 4179
![NISSAN X-TRAIL 2003 Service Manual PDF EC-46
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BASIC SERVICE PROCEDURE
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON and wait at least 2 seconds.
5. Turn ignition switch OFF and w NISSAN X-TRAIL 2003 Service Manual PDF EC-46
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BASIC SERVICE PROCEDURE
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON and wait at least 2 seconds.
5. Turn ignition switch OFF and w](/img/5/57404/w960_57404-423.png)
EC-46
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BASIC SERVICE PROCEDURE
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON and wait at least 2 seconds.
5. Turn ignition switch OFF and wait at least 10 seconds.
Throttle Valve Closed Position LearningEBS010LG
DESCRIPTION
Throttle Valve Closed Position Learning is an operation to learn the fully closed position of the throttle valve by
monitoring the throttle position sensor output signal. It must be performed each time harness connector of
electric throttle control actuator or ECM is disconnected.
OPERATION PROCEDURE
1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
Make sure that throttle valve moves during above 10 seconds by confirming the operating sound.
Idle Air Volume LearningEBS010LH
DESCRIPTION
Idle Air Volume Learning is an operation to learn the idle air volume that keeps each engine within the specific
range. It must be performed under any of the following conditions:
Each time electric throttle control actuator or ECM is replaced.
Idle speed or ignition timing is out of specification.
PREPARATION
Before performing Idle Air Volume Learning, make sure that all of the following conditions are satisfied.
Learning will be cancelled if any of the following conditions are missed for even a moment.
Battery voltage: More than 12.9V (At idle)
Engine coolant temperature: 70 - 95°C (158 - 203°F)
PNP switch: ON
Electric load switch: OFF
(Air conditioner, headlamp, rear window defogger)
On vehicles equipped with daytime light systems, set lighting switch to the 1st position to light
only small lamps.
Steering wheel: Neutral (Straight-ahead position)
Vehicle speed: Stopped
Transmission: Warmed-up
For A/T models with CONSULT-II, drive vehicle until “FLUID TEMP SE” in “DATA MONITOR” mode of “A/
T” system indicates less than 0.9V.
For A/T models without CONSULT-II and M/T models, drive vehicle for 10 minutes.
OPERATION PROCEDURE
With CONSULT-II
1. Perform EC-45, "Accelerator Pedal Released Position Learning" .
2. Perform EC-46, "
Throttle Valve Closed Position Learning" .
3. Start engine and warm it up to normal operating temperature.
4. Check that all items listed under the topic PREPARATION (previously mentioned) are in good order.
5. Select “IDLE AIR VOL LEARN” in “WORK SUPPORT” mode.
SEF217Z
Page 425 of 4179
![NISSAN X-TRAIL 2003 Service Manual PDF 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” NISSAN X-TRAIL 2003 Service Manual PDF BASIC SERVICE PROCEDURE
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6. Touch “START” and wait 20 seconds.
7. Make sure that “CMPLT” is displayed on CONSULT-II screen. If
“CMPLT”](/img/5/57404/w960_57404-424.png)
BASIC SERVICE PROCEDURE
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6. Touch “START” and wait 20 seconds.
7. Make sure that “CMPLT” is displayed on CONSULT-II screen. If
“CMPLT” is not displayed, Idle Air Volume Learning will not be
carried out successfully. In this case, find the cause of the inci-
dent by referring to the DIAGNOSTIC PROCEDURE below.
8. Rev up the engine two or three times and make sure that idle
speed and ignition timing are within the specifications.
Without CONSULT-II
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.
1. Perform EC-45, "
Accelerator Pedal Released Position Learning" .
2. Perform EC-46, "
Throttle Valve Closed Position Learning" .
3. Start engine and warm it up to normal operating temperature.
4. Check that all items listed under the topic PREPARATION (previously mentioned) are in good order.
5. Turn ignition switch OFF and wait at least 10 seconds.
6. Confirm that accelerator pedal is fully released, turn ignition switch ON and wait 3 seconds.
7. Repeat the following procedure quickly 5 times within 5 seconds.
a. Fully depress the accelerator pedal.
b. Fully release the accelerator pedal.
8. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the MI stops
blinking and turned ON.
9. Fully release the accelerator pedal within 3 seconds after the MI turned ON.
10. Start engine and let it idle.
11. Wait 20 seconds.
SEF454Y
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)
MBIB0238E
PBIB0665E
Page 429 of 4179
![NISSAN X-TRAIL 2003 Service Manual PDF ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-51
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ON BOARD DIAGNOSTIC (OBD) SYSTEMPFP:00028
IntroductionEBS010LJ
The ECM has an on board diagnostic system, which NISSAN X-TRAIL 2003 Service Manual PDF 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](/img/5/57404/w960_57404-428.png)
ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-51
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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 — — —×—××—
Page 431 of 4179
![NISSAN X-TRAIL 2003 Service Manual PDF 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 NISSAN X-TRAIL 2003 Service Manual PDF 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](/img/5/57404/w960_57404-430.png)
ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-53
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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
Page 432 of 4179
![NISSAN X-TRAIL 2003 Service Manual PDF EC-54
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ON BOARD DIAGNOSTIC (OBD) SYSTEM
*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 NISSAN X-TRAIL 2003 Service Manual PDF EC-54
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ON BOARD DIAGNOSTIC (OBD) SYSTEM
*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](/img/5/57404/w960_57404-431.png)
EC-54
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ON BOARD DIAGNOSTIC (OBD) SYSTEM
*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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SRT Item
The table below shows required self-diagnostic items to set the SRT to “CMPLT”.
*: If completion of NISSAN X-TRAIL 2003 Service Manual PDF ON BOARD DIAGNOSTIC (OBD) SYSTEM
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SRT Item
The table below shows required self-diagnostic items to set the SRT to “CMPLT”.
*: If completion of](/img/5/57404/w960_57404-434.png)
ON BOARD DIAGNOSTIC (OBD) SYSTEM
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SRT Item
The table below shows required self-diagnostic items to set the SRT to “CMPLT”.
*: If completion of several SRTs is required, perform driving patterns (DTC confirmation procedure), one by one based on the priority for
models with CONSULT-II.
SRT Set Timing
SRT is set as “CMPLT” after self-diagnosis has been performed one or more times. Completion of SRT is
done regardless of whether the result is OK or NG. The set timing is different between OK and NG results and
is shown in the table below.
OK: Self-diagnosis is carried out and the result is OK.
NG: Self-diagnosis is carried out and the result is NG.
—: Self-diagnosis is not carried out.
When all SRT related self-diagnoses showed OK results in a single cycle (Ignition OFF-ON-OFF), the SRT will
indicate “CMPLT”. → Case 1 above
When all SRT related self-diagnoses showed OK results through several different cycles, the SRT will indicate
“CMPLT” at the time the respective self-diagnoses have at least one OK result. → Case 2 above
If one or more SRT related self-diagnoses showed NG results in 2 consecutive cycles, the SRT will also indi-
cate “CMPLT”. → Case 3 above
The table above shows that the minimum number of cycles for setting SRT as “INCMP” is one (1) for each
self-diagnosis (Case 1 & 2) or two (2) for one of self-diagnoses (Case 3). However, in preparation for the state
SRT item
(CONSULT-II
indication)Performance
Priority*Required self-diagnostic items to set the SRT to “CMPLT” Corresponding DTC No.
CATALYST 2 Three way catalyst function P0420
HO2S 1 Heated oxygen sensor 1 P0133
Heated oxygen sensor 1 P1143
Heated oxygen sensor 1 P1144
Heated oxygen sensor 2 P0139
Heated oxygen sensor 2 P1146
Heated oxygen sensor 2 P1147
HO2S HTR 1 Heated oxygen sensor 1 heater P0031, P0032
Heated oxygen sensor 2 heater P0037, P0038
Self-diagnosis resultExample
DiagnosisIgnition cycle
← ON → OFF ← ON → OFF ← ON → OFF ← ON →
All OK Case 1 P0400 OK (1) — (1) OK (2) — (2)
P0402 OK (1) — (1) — (1) OK (2)
P1402 OK (1) OK (2) — (2) — (2)
SRT of EGR “CMPLT” “CMPLT” “CMPLT” “CMPLT”
Case 2 P0400 OK (1) — (1) — (1) — (1)
P0402 — (0) — (0) OK (1) — (1)
P1402 OK (1) OK (2) — (2) — (2)
SRT of EGR “INCMP” “INCMP” “CMPLT” “CMPLT”
NG exists Case 3 P0400 OK OK — —
P0402 — — — —
P1402 NG — NGNG
(Consecutive
NG)
(1st trip)
DTC1st trip DTC — 1st trip DTCDTC
(= MI “ON”)
SRT of EGR “INCMP” “INCMP” “INCMP” “CMPLT”