sensor NISSAN X-TRAIL 2003 Service Repair Manual

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-893
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EC

FUEL PUMP P0089××EC-956
FUEL LEAK P0093××EC-959
MAF SENSOR P0101××EC-963
MAF SEN/CIRCUIT P0102××EC-970
MAF SEN/CIRCUIT P0103××EC-970
IAT SEN/CIRCUIT P0112××EC-976
IAT SEN/CIRCUIT P0113××EC-976
ECT SEN/CIRCUIT P0117××EC-981
ECT SEN/CIRCUIT P0118××EC-981
APP SEN 1/CIRCUIT P0122 — —EC-987
APP SEN 1/CIRCUIT P0123 — —EC-987
FUEL TEMP SEN/CIRC P0182××EC-993
FUEL TEMP SEN/CIRC P0183××EC-993
FRP SEN/CIRC P0192××EC-997
FRP SEN/CIRC P0193××EC-997
INJECTOR P0200××EC-1003
CYL1 INJECTOR P0201××EC-1005
CYL2 INJECTOR P0202××EC-1005
CYL3 INJECTOR P0203××EC-1005
CYL4 INJECTOR P0204××EC-1005
ENG OVER TEMP P0217 —×EC-1011
APP SEN 2/CIRCUIT P0222 — —EC-1025
APP SEN 2/CIRCUIT P0223 — —EC-1025
TC SYSTEM P0234 — —EC-1031
TC BOOST SEN/CIRC P0237××EC-1038
TC BOOST SEN/CIRC P0238××EC-1038
CKP SEN/CIRCUIT P0335××EC-1044
CKP SENSOR P0336××EC-1050
CMP SEN/CIRCUIT P0340××EC-1056
CMP SENSOR P0341××EC-1062
GLOW RELAY P0380××EC-1069
EGR SYSTEM P0401××EC-1073
EGR VALVE P0404××EC-1080
BATTERY VOLTAGE P0563 — —EC-1087
ECM P0605××EC-1089
ECM P0606××EC-1091
FUEL PUMP/CIRC P0628××EC-1093
FUEL PUMP/CIRC P0629××EC-1093
SENSOR PWR/CIRC1 P0642××EC-1098
SENSOR PWR/CIRC1 P0643××EC-1098
SENSOR PWR/CIRC2 P0652××EC-1104
SENSOR PWR/CIRC2 P0653××EC-1104
ECM RELAY P0686 — —E C - 111 0
Items
(CONSULT-II screen item) DTC*1 *2
(CONSULT-II, GST )1st/2nd
trip DTCMI lighting
upReference page

EC-894
[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.
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-
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-895,
"HOW TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION" .
For malfunctions in which 1st/2nd trip DTC are displayed, Refer to EC-892, "
Emission-related Diagnostic Infor-
mation" .
1st/2nd trip DTC is specified in Mode 7 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-902, "
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
TCS C/U FUNCTN P1211 — —E C - 111 3
TCS/CIRC P1212 — —E C - 111 4
INJ ADJ RES/CIRC1 P1260××E C - 111 5
INJ ADJ RES/CIRC1 P1261××E C - 111 5
INJ ADJ RES/CIRC2 P1262××E C - 111 5
INJ ADJ RES/CIRC2 P1263××E C - 111 5
INJ ADJ RES/CIRC3 P1264××E C - 111 5
INJ ADJ RES/CIRC3 P1265××E C - 111 5
INJ ADJ RES/CIRC4 P1266××E C - 111 5
INJ ADJ RES/CIRC4 P1267××E C - 111 5
INJECTOR 1 P1268 — —EC-1121
INJECTOR 2 P1269 — —EC-1121
INJECTOR 3 P1270 — —EC-1121
INJECTOR 4 P1271 — —EC-1121
FRP RELIEF VALVE P1272××EC-1127
FUEL PUMP P1273××EC-1134
FUEL PUMP P1274 —×EC-1139
FUEL PUMP P1275 —×EC-1144
NATS MALFUNTION P1610 - P1617 — —EC-896
APP SENSOR P2135 — —EC-1149
INJ PWR/CIRC P2146××EC-1155
INJECTOR/CIRC P2147××EC-1160
INJECTOR/CIRC P2148××EC-1160
INJ PWR/CIRC P2149××EC-1155
BARO SEN/CIRC P2228××EC-1167
BARO SEN/CIRC P2229××EC-1167
Items
(CONSULT-II screen item) DTC*1 *2
(CONSULT-II, GST )1st/2nd
trip DTCMI lighting
upReference page

TROUBLE DIAGNOSIS
EC-901
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TROUBLE DIAGNOSISPFP:00004
Trouble Diagnosis IntroductionEBS01179
INTRODUCTION
The engine has an ECM to control major systems such as fuel injec-
tion control, fuel injection timing control, glow control system, etc.
The ECM accepts input signals from sensors and instantly actuators.
It is essential that both input and output signals are proper and sta-
ble. At the same time, it is important that there are no malfunctions
such as vacuum leaks, or other malfunctions with the engine.
It is much more difficult to diagnose a malfunction that occurs inter-
mittently rather than continuously. Most intermittent malfunctions are
caused by poor electric connections or improper wiring. In this case,
careful checking of suspected circuits may help prevent the replace-
ment of good parts.
A visual check only may not find the cause of the incidents. A road
test with CONSULT-II or a circuit tester connected should be per-
formed. Follow the EC-902, "
WORK FLOW" .
Before undertaking actual checks, take a few minutes to talk with a
customer who approaches with a driveability complaint. The cus-
tomer can supply good information about such incidents, especially
intermittent ones. Find out what symptoms are present and under
what conditions they occur. A Diagnostic Worksheet like the example
on next page should be used.
Start your diagnosis by looking for conventional incidents first. This
will help troubleshoot driveability incidents on an electronically con-
trolled engine vehicle.
MEF036D
SEF233G
SEF234G

TROUBLE DIAGNOSIS
EC-903
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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

TROUBLE DIAGNOSIS
EC-905
[YD (WITH EURO-OBD)]
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Basic InspectionEBS0117A
Precaution:
Perform Basic Inspection without electrical or mechanical loads applied;

Headlamp switch is OFF.

On vehicles equipped with daytime light systems, set lighting switch to the 1st position to light
only small lamps.

Air conditioner switch is OFF.

Rear defogger switch is OFF.

Steering wheel is in the straight-ahead position, etc.
Priority Detected items (DTC)
1

U1000 CAN communication line

P0016 Crankshaft position - camshaft position correlation

P0101 P0102 P0103 Mass air flow sensor

P0112 P0113 Intake air temperature sensor

P0117 P0118 Engine coolant temperature sensor

P0122 P0123 P0222 P0223 P2135 Accelerator pedal position sensor

P0182 P0183 Fuel pump temperature sensor

P0192 P0193 Fuel rail pressure sensor

P0237 P0238 Turbocharger boost sensor

P0335 P0336 Crankshaft position sensor

P0340 P0341 Camshaft position sensor

P0563 Battery voltage

P0605 P0606 ECM

P0642 P0643 P0652 P0653 Sensor power supply

P1260 - P1267 Fuel injector adjustment resistor

P1610 - P1617 NATS

P2228 P2229 Barometric pressure sensor
2

P0045 Turbocharger boost control solenoid valve

P0089 P0628 P0629 P1272 - P1275 Fuel pump

P0200 - P0204 P1268 - P1271 P2146 - P2149 Fuel injector

P0380 Glow relay

P0404 EGR volume control valve

P0686 ECM relay

P1212 TCS communication line
3

P0088 P0093 Fuel system

P0217 Engine over temperature (OVERHEAT)

P0234 Turbocharger system

P0401 EGR function

P1211 TCS control unit

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-909
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Symptom Matrix ChartEBS0117B
SYSTEM — Basic engine control systemSYMPTOM
Reference page
HARD/NO START/RESTART (EXCP. HA) ENGINE STALL HESITATION/SURGING/FLAT SPOT KNOCK/DETONATION
LACK OF POWER POOR ACCELERATION HI IDLE LOW IDLE
NO START (with first firing) NO START (without first firing) HARD TO START WHEN ENGINE IS COLD HARD TO START WHEN ENGINE IS HOT
AT I D L E DURING DRIVING WHEN DECELERATING
Warranty symptom code AA AB AC AD AE AF
Fuel pump 55555555 55 5 —
Fuel injector 3333333334433EC-1005
Glow control system 1 1 1 1 1EC-1169
Engine body 3333333 344 3EM-208
Fuel transport pump 2 2 2EC-1190
EGR system33EC-1073
Air cleaner and duct33EM-133
Fuel rail pressure relief valveEC-959
ENGINE CONTROLFuel pump circuit 4 4 4 4 4 4 4 4 4 4 4EC-1093
Fuel injector circuit 1111111111111EC-1005
Mass air flow sensor circuit 1 1 1EC-970
Engine coolant temperature circuit 1 1 1 1EC-981
Vehicle speed signal circuit1LAN-4
Accelerator pedal position sensor circuit 1 1 1EC-987
Fuel rail pressure sensor circuitEC-997

EC-910
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS

1 - 5: The numbers refer to the order of inspection.
(continued on next page)
ENGINE CONTROL
Crankshaft position sensor circuit 1 1 1 1 1 1 1 1 1 1EC-1044
Camshaft position sensor circuit 3 3EC-1056
Turbocharger boost sensor circuit 1 1 1EC-1038
Turbocharger boost control solenoid
valve circuit111EC-949
Start signal circuit 1 1 1 1 1 1 1 1 1EC-1199
Ignition switch circuit 1 1 1 1EC-937
Power supply for ECM circuit 1 1 1 1EC-937
Cooling fan relay circuitEC-1011
EGR volume control valve circuit 1 1 1EC-1080
Glow relay circuit 1 1 1 1EC-1069
ECM relay (Self-shutoff) circuit 1 1 1 1E C - 111 0
ECM, connector circuit 2 2 2 2 2 2 2 2 2 2 2 2 2EC-1089,
EC-1167
NATS (Nissan Anti-theft System) 1EC-896
SYSTEM — Basic engine control systemSYMPTOM
Reference page
HARD/NO START/RESTART (EXCP. HA) ENGINE STALL HESITATION/SURGING/FLAT SPOT KNOCK/DETONATION LACK OF POWER POOR ACCELERATION HI IDLE
LOW IDLE
NO START (with first firing) NO START (without first firing)
HARD TO START WHEN ENGINE IS COLD HARD TO START WHEN ENGINE IS HOT AT I D L E DURING DRIVING WHEN DECELERATING
Warranty symptom code AA AB AC AD AE AF

TROUBLE DIAGNOSIS
EC-911
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SYSTEM — Basic engine control systemSYMPTOM
Reference page
ROUGH IDLE/HUNTING IDLING VIBRATION
SLOW/NO RETURN TO IDLE OVERHEAT/HIGH ENGINE COOLANT TEMPERATURE EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION ABNORMAL SMOKE COLOR DEAD BATTERY (UNDER CHARGE) Malfunction indicator illuminates. Can be detected by CONSULT-II?
BLACK SMOKE WHITE SMOKE
Warranty symptom code AG AH AJ AK AL AM AP HA
Fuel pump 5 5 5 5 1 1 —
Fuel injector 33344411EC-1005
Glow control system1EC-1169
Engine body 3 3 3 3 1 3EM-208
Fuel transport pumpEC-1190
EGR system3EC-1073
Air cleaner and duct3EM-133
Fuel rail pressure relief valveEC-959
ENGINE CONTROLFuel pump circuit 4 4 4 4 1 1EC-1134
Fuel injector circuit 1 1 1 1 1 1 1 1EC-1005
Mass air flow sensor circuit 1 1 1EC-970
Engine coolant temperature circuit 1 1 1 1 1EC-981
Vehicle speed signal circuit11LAN-4
Accelerator pedal position sensor circuit 1 1 1EC-987
Fuel rail pressure sensor circuit11EC-997

EC-912
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS

1 - 5: The numbers refer to the order of inspection.
ENGINE CONTROLCrankshaft position sensor circuit 1 1 1 1EC-1044
Camshaft position sensor circuit11EC-1056
Turbocharger boost sensor circuit 1 1EC-1038
Turbocharger boost control solenoid valve cir-
cuit11EC-949
Start signal circuitEC-1199
Ignition switch circuitEC-937
Power supply for ECM circuit11EC-937
Cooling fan relay circuit 2EC-1011
EGR volume control valve circuit 1EC-1080
Glow relay circuit1EC-1069
ECM relay (Self-shutoff) circuit1E C - 111 0
ECM, connector circuit22222222222EC-1089,EC-
1167
NATS (Nissan Anti-theft System)1EC-896
SYSTEM — Basic engine control systemSYMPTOM
Reference page
ROUGH IDLE/HUNTING IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEAT/HIGH ENGINE COOLANT TEMPERATURE EXCESSIVE FUEL CONSUMPTION EXCESSIVE OIL CONSUMPTION ABNORMAL SMOKE COLOR
DEAD BATTERY (UNDER CHARGE) Malfunction indicator illuminates.
Can be detected by CONSULT-II?
BLACK SMOKE WHITE SMOKE
Warranty symptom code AG AH AJ AK AL AM AP HA