2003 NISSAN X-TRAIL heating

OVERHEATING CAUSE ANALYSIS
CO-27
[YD22DDTi]
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Except cool-
ing system
parts mal-
function— Overload on engineAbusive drivingHigh engine rpm under no
load
Driving in low gear for
extended time
Driving at extremely high
speed
Powertrain system mal-
function
— Installed improper size
wheels and tires
Dragging brakes
Improper ignition timing
Blocked or restricted air
flowBlocked bumper —
— Blocked radiator grilleInstalled car brassiere
Mud contamination or
paper clogging
Blocked radiator —
Blocked condenser
—
Installed large fog lamp Symptom Check items

THERMOSTAT AND WATER PIPING
CO-43
[YD22DDTi]
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INSPECTION AFTER REMOVAL
Thermostat
lPlace a string so that it is caught in the valves of the thermostat.
Immerse fully in a container filled with water. Heat while stirring.
lThe valve opening temperature is the temperature at which the
valve opens and falls from the thread.
lContinue heating. Check the full-open lift amount.
lAfter checking the full-open lift amount, lower the water temper-
ature and check the valve closing temperature.
Standard values
INSTALLATION
lInstall in the reverse order of removal paying attention to the following.
Thermostat
lInstall the thermostat with the whole circumference of each
flange part fit securely inside the rubber ring.
lInstall the thermostat with the jiggle valve facing upwards.
Heater Pipe
lFirst apply a neutral detergent to the O-ring, then quickly insert the insertion parts of the heater pipe into
the installation holes.
SLC252B
Item Thermostat
Valve opening temperature 80 - 84°C (176 - 183°F)
Full-open lift amount More than 10 mm/ 95°C (0.39 in/ 203°F)
Valve closing temperature Approximatery 77°C (171°F)
JLC300B

EC-4
ECM Terminals and Reference Value ...................260
On Board Diagnosis Logic ....................................261
DTC Confirmation Procedure ...............................261
Wiring Diagram .....................................................262
Diagnostic Procedure ...........................................263
Component Inspection ..........................................264
Removal and Installation ......................................265
D T C P 1111 I V T C ON T R OL S OL E N OI D VA LV E . .. ..266
Component Description ........................................266
CONSULT-II Reference Value in Data Monitor Mode
.266
ECM Terminals and Reference Value ...................266
On Board Diagnosis Logic ....................................266
DTC Confirmation Procedure ...............................267
Wiring Diagram .....................................................268
Diagnostic Procedure ...........................................269
Component Inspection ..........................................270
Removal and Installation ......................................270
DTC P1121 ELECTRIC THROTTLE CONTROL
ACTUATOR .............................................................271
Description ............................................................271
On Board Diagnosis Logic ....................................271
DTC Confirmation Procedure ...............................271
Diagnostic Procedure ...........................................272
DTC P1122 ELECTRIC THROTTLE CONTROL
FUNCTION ..............................................................273
Description ............................................................273
ECM Terminals and Reference Value ...................273
On Board Diagnosis Logic ....................................273
DTC Confirmation Procedure ...............................274
Wiring Diagram .....................................................275
Diagnostic Procedure ...........................................276
Component Inspection ..........................................277
DTC P1123 THROTTLE CONTROL MOTOR RELAY.279
Component Description ........................................279
CONSULT-II Reference Value in Data Monitor Mode
.279
ECM Terminals and Reference Value ...................279
On Board Diagnosis Logic ....................................279
DTC Confirmation Procedure ...............................279
Wiring Diagram .....................................................281
Diagnostic Procedure ...........................................282
Component Inspection ..........................................283
DTC P1143 HO2S1 .................................................284
Component Description ........................................284
CONSULT-II Reference Value in Data Monitor Mode
.284
ECM Terminals and Reference Value ...................284
On Board Diagnosis Logic ....................................285
DTC Confirmation Procedure ...............................285
Overall Function Check ........................................286
Diagnostic Procedure ...........................................286
Component Inspection ..........................................288
Removal and Installation ......................................289
DTC P1144 HO2S1 .................................................290
Component Description ........................................290
CONSULT-II Reference Value in Data Monitor Mode
.290ECM Terminals and Reference Value ................... 290
On Board Diagnosis Logic .................................... 291
DTC Confirmation Procedure ................................ 291
Overall Function Check ......................................... 292
Diagnostic Procedure ............................................ 292
Component Inspection .......................................... 294
Removal and Installation ....................................... 295
DTC P1146 HO2S2 .................................................. 296
Component Description ........................................ 296
CONSULT-II Reference Value in Data Monitor Mode
. 296
ECM Terminals and Reference Value ................... 296
On Board Diagnosis Logic .................................... 296
DTC Confirmation Procedure ................................ 297
Overall Function Check ......................................... 298
Wiring Diagram ..................................................... 299
Diagnostic Procedure ............................................ 300
Component Inspection .......................................... 301
Removal and Installation ....................................... 302
DTC P1147 HO2S2 .................................................. 303
Component Description ........................................ 303
CONSULT-II Reference Value in Data Monitor Mode
. 303
ECM Terminals and Reference Value ................... 303
On Board Diagnosis Logic .................................... 303
DTC Confirmation Procedure ................................ 304
Overall Function Check ......................................... 305
Wiring Diagram ..................................................... 306
Diagnostic Procedure ............................................ 307
Component Inspection .......................................... 308
Removal and Installation ....................................... 309
DTC P1212 ESP/TCS/ABS COMMUNICATION
LINE ......................................................................... 310
Description ............................................................ 310
On Board Diagnosis Logic .................................... 310
DTC Confirmation Procedure ................................ 310
Diagnostic Procedure ............................................ 310
DTC P1217 ENGINE OVER TEMPERATURE ........311
System Description ...............................................311
CONSULT-II Reference Value in Data Monitor Mode
.311
ECM Terminals and Reference Value ................... 312
On Board Diagnosis Logic .................................... 312
Overall Function Check ......................................... 312
Wiring Diagram ..................................................... 315
Diagnostic Procedure ............................................ 316
Main 12 Causes of Overheating ........................... 323
Component Inspection .......................................... 324
DTC P1706 PNP SWITCH ....................................... 325
Component Description ........................................ 325
CONSULT-II Reference Value in Data Monitor Mode
. 325
ECM Terminals and Reference Value ................... 325
On Board Diagnosis Logic .................................... 325
DTC Confirmation Procedure ................................ 325
Overall Function Check ......................................... 326
Wiring Diagram ..................................................... 327
Diagnostic Procedure ............................................ 328

EC-7
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ECA On Board Diagnosis Logic ................................... 513
DTC Confirmation Procedure ............................... 513
Overall Function Check ........................................ 514
Wiring Diagram .................................................... 515
Diagnostic Procedure ........................................... 517
DTC P0550 PSP SENSOR ..................................... 518
Component Description ........................................ 518
CONSULT-II Reference Value in Data Monitor Mode
. 518
ECM Terminals and Reference Value .................. 518
On Board Diagnosis Logic ................................... 518
DTC Confirmation Procedure ............................... 518
Wiring Diagram .................................................... 520
Diagnostic Procedure ........................................... 521
Component Inspection ......................................... 522
DTC P0605 ECM .................................................... 523
Component Description ........................................ 523
On Board Diagnosis Logic ................................... 523
DTC Confirmation Procedure ............................... 523
Diagnostic Procedure ........................................... 525
DTC P0650 MI ........................................................ 526
Component Description ........................................ 526
On Board Diagnosis Logic ................................... 526
DTC Confirmation Procedure ............................... 526
Overall Function Check ........................................ 526
Wiring Diagram .................................................... 527
Diagnostic Procedure ........................................... 528
DTC P1065 ECM POWER SUPPLY ....................... 530
Component Description ........................................ 530
On Board Diagnosis Logic ................................... 530
DTC Confirmation Procedure ............................... 530
Wiring Diagram .................................................... 531
Diagnostic Procedure ........................................... 532
DTC P1121 ELECTRIC THROTTLE CONTROL
ACTUATOR ............................................................ 534
Description ........................................................... 534
On Board Diagnosis Logic ................................... 534
DTC Confirmation Procedure ............................... 534
Diagnostic Procedure ........................................... 535
DTC P1122 ELECTRIC THROTTLE CONTROL
FUNCTION .............................................................. 536
Description ........................................................... 536
ECM Terminals and Reference Value .................. 536
On Board Diagnosis Logic ................................... 536
DTC Confirmation Procedure ............................... 537
Wiring Diagram .................................................... 538
Diagnostic Procedure ........................................... 539
Component Inspection ......................................... 540
DTC P1123 THROTTLE CONTROL MOTOR RELAY. 542
Component Description ........................................ 542
CONSULT-II Reference Value in Data Monitor Mode
. 542
ECM Terminals and Reference Value .................. 542
On Board Diagnosis Logic ................................... 542
DTC Confirmation Procedure ............................... 542
Wiring Diagram .................................................... 544
Diagnostic Procedure ........................................... 545
Component Inspection ......................................... 546DTC P1212 ESP/TCS/ABS COMMUNICATION
LINE ........................................................................547
Description ............................................................547
On Board Diagnosis Logic ....................................547
DTC Confirmation Procedure ...............................547
Diagnostic Procedure ...........................................547
DTC P1217 ENGINE OVER TEMPERATURE ........548
System Description ...............................................548
CONSULT-II Reference Value in Data Monitor Mode
.548
ECM Terminals and Reference Value ...................549
On Board Diagnosis Logic ....................................549
Overall Function Check ........................................549
Wiring Diagram .....................................................552
Diagnostic Procedure ...........................................553
Main 12 Causes of Overheating ...........................560
Component Inspection ..........................................561
DTC P1805 BRAKE SWITCH .................................562
Description ............................................................562
CONSULT-II Reference Value in Data Monitor Mode
.562
ECM Terminals and Reference Value ...................562
On Board Diagnosis Logic ....................................562
DTC Confirmation Procedure ...............................562
Wiring Diagram .....................................................564
Diagnostic Procedure ...........................................565
Component Inspection ..........................................566
HO2S1 HEATER .....................................................568
Description ............................................................568
CONSULT-II Reference Value in Data Monitor Mode
.568
ECM Terminals and Reference Value ...................568
Wiring Diagram .....................................................569
Diagnostic Procedure ...........................................570
Component Inspection ..........................................572
Removal and Installation ......................................572
HO2S2 HEATER .....................................................573
Description ............................................................573
CONSULT-II Reference Value in Data Monitor Mode
.573
ECM Terminals and Reference Value ...................573
Wiring Diagram .....................................................574
Diagnostic Procedure ...........................................575
Component Inspection ..........................................576
Removal and Installation ......................................576
IAT SENSOR ...........................................................577
Component Description ........................................577
Wiring Diagram .....................................................578
Diagnostic Procedure ...........................................579
Component Inspection ..........................................580
Removal and Installation ......................................580
HO2S1 .....................................................................581
Component Description ........................................581
CONSULT-II Reference Value in Data Monitor Mode
.581
ECM Terminals and Reference Value ...................581
Wiring Diagram .....................................................582
Diagnostic Procedure ...........................................583

EC-10
DTC P0500 VEHICLESPEED SENSOR (VSS) .....744
Description ............................................................744
ECM Terminals and Reference Value ...................744
On Board Diagnosis Logic ....................................744
Overall Function Check ........................................744
Wiring Diagram .....................................................745
Diagnostic Procedure ...........................................747
DTC P1107 ABSOLUTE PRESSURE SENSOR ....749
Description ............................................................749
On Board Diagnosis Logic ....................................749
DTC Confirmation Procedure ...............................749
Diagnostic Procedure ...........................................749
DTC P1180 FUEL TEMPERATURE SENSOR .......751
Description ............................................................751
CONSULT-II Reference Value in Data Monitor Mode
.751
ECM Terminals and Reference Value ...................751
On Board Diagnosis Logic ....................................751
DTC Confirmation Procedure ...............................751
Wiring Diagram .....................................................752
Diagnostic Procedure ...........................................753
Removal and Installation ......................................753
DTC P1216 EDU .....................................................754
Description ............................................................754
ECM Terminals and Reference Value ...................754
On Board Diagnosis Logic ....................................755
DTC Confirmation Procedure ...............................755
Wiring Diagram .....................................................756
Diagnostic Procedure ...........................................758
Removal and Installation ......................................760
DTC P1217 OVERHEAT (COOLING SYSTEM) .....761
Description ............................................................761
CONSULT-II Reference Value in Data Monitor Mode
.761
ECM Terminals and Reference Value ...................761
On Board Diagnosis Logic ....................................761
Overall Function Check ........................................762
Wiring Diagram .....................................................763
Diagnostic Procedure ...........................................764
Main 12 Causes of Overheating ...........................770
Component Inspection ..........................................771
DTC P1233 - P1234 SUCTION CONTROL VALVE. 772
Description ............................................................772
CONSULT-II Reference Value in Data Monitor Mode
.772
ECM Terminals and Reference Value ...................772
On Board Diagnosis Logic ....................................773
DTC Confirmation Procedure ...............................773
Wiring Diagram .....................................................774
Diagnostic Procedure ...........................................775
Component Inspection ..........................................776
Removal and Installation ......................................776
DTC P1301 - P1304 FUEL INJECTOR ADJUST-
MENT RESISTOR ...................................................777
Description ............................................................777
ECM Terminals and Reference Value ...................777
On Board Diagnosis Logic ....................................777
DTC Confirmation Procedure ...............................777Wiring Diagram ..................................................... 778
Diagnostic Procedure ............................................ 779
Component Inspection .......................................... 780
Removal and Installation ....................................... 780
DTC P1305 FUEL LEAK ......................................... 781
On Board Diagnosis Logic .................................... 781
DTC Confirmation Procedure ................................ 781
Diagnostic Procedure ............................................ 781
Removal and Installation ....................................... 781
DTC P1510 ACCELERATOR PEDAL RELEASED
POSITION SWITCH ................................................. 783
Description ............................................................ 783
CONSULT-II Reference Value in Data Monitor Mode
. 783
ECM Terminals and Reference Value ................... 783
On Board Diagnosis Logic .................................... 784
DTC Confirmation Procedure ................................ 784
Wiring Diagram ..................................................... 785
Diagnostic Procedure ............................................ 786
Component Inspection .......................................... 787
Removal and Installation ....................................... 787
DTC P1606 ECM ..................................................... 788
Description ............................................................ 788
On Board Diagnosis Logic .................................... 788
DTC Confirmation Procedure ................................ 788
Diagnostic Procedure ............................................ 788
DTC P1621 ECM RELAY ........................................ 790
ECM Terminals and Reference valve .................... 790
On Board Diagnosis Logic .................................... 790
DTC Confirmation Procedure ................................ 790
Wiring Diagram ..................................................... 791
Diagnostic Procedure ............................................ 792
Component Inspection .......................................... 793
DTC P1660 BATTERY VOLTAGE ........................... 794
On Board Diagnosis Logic .................................... 794
DTC Confirmation Procedure ................................ 794
Diagnostic Procedure ............................................ 794
GLOW CONTROL SYSTEM ................................... 796
Description ............................................................ 796
ECM Terminals and Reference Value ................... 796
Wiring Diagram ..................................................... 797
Diagnostic Procedure ............................................ 798
Component Inspection .......................................... 802
Removal and Installation ....................................... 802
EGR VOLUME CONTROL SYSTEM ...................... 803
Description ............................................................ 803
CONSULT-II Reference Value in Data Monitor Mode
. 803
ECM Terminals and Reference Value ................... 804
Wiring Diagram ..................................................... 805
Diagnostic Procedure ............................................ 806
Component Inspection .......................................... 808
Removal and Installation ....................................... 809
BRAKE SWITCH ..................................................... 810
Description ............................................................ 810
ECM Terminals and Reference Value ................... 810
Wiring Diagram .....................................................811

EC-206
[QR (WITH EURO-OBD)]
DTC P0300 - P0304 MULTIPLE CYLINDER MISFIRE, NO. 1 - 4 CYLINDER MIS-
FIRE
DTC P0300 - P0304 MULTIPLE CYLINDER MISFIRE, NO. 1 - 4 CYLINDER MIS-
FIRE
PFP:00000
On Board Diagnosis LogicEBS00B5I
When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the crank-
shaft position (CKP) sensor (POS) signal to vary, ECM can determine that a misfire is occurring.
The misfire detection logic consists of the following two conditions.
1. One Trip Detection Logic (Three Way Catalyst Damage)
On the first trip that a misfire condition occurs that can damage the three way catalyst (TWC) due to over-
heating, the MI will blink.
When a misfire condition occurs, the ECM monitors the CKP sensor (POS) signal every 200 engine revo-
lutions for a change.
When the misfire condition decreases to a level that will not damage the TWC, the MI will turn off.
If another misfire condition occurs that can damage the TWC on a second trip, the MI will blink.
When the misfire condition decreases to a level that will not damage the TWC, the MI will remain on.
If another misfire condition occurs that can damage the TWC, the MI will begin to blink again.
2. Two Trip Detection Logic (Exhaust quality deterioration)
For misfire conditions that will not damage the TWC (but will affect vehicle emissions), the MI will only light
when the misfire is detected on a second trip. During this condition, the ECM monitors the CKP sensor
signal every 1,000 engine revolutions.
A misfire malfunction can be detected on any one cylinder or on multiple cylinders.
DTC Confirmation ProcedureEBS00B5J
CAUTION:
Always drive vehicle at a safe speed.
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”, and select “DATA MONITOR” mode with CONSULT-II.
2. Start engine and warm it up to normal operating temperature.
3. Turn ignition switch “OFF” and wait at least 10 seconds.
Sensor Input Signal to ECM ECM function
Crankshaft position sensor (POS) Engine speed On board diagnosis of misfire
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0300
0300Multiple cylinder misfire
detectedMultiple cylinder misfire.
lImproper spark plug
lInsufficient compression
lIncorrect fuel pressure
lThe injector circuit is open or shorted
lFuel injectors
lIntake air leak
lThe ignition signal circuit is open or
shorted
lLack of fuel
lDrive plate or flywheel
lHeated oxygen sensor 1 P0301
0301No.1 cylinder misfire
detectedNo. 1 cylinder misfires.
P0302
0302No. 2 cylinder misfire
detectedNo. 2 cylinder misfires.
P0303
0303No. 3 cylinder misfire
detectedNo. 3 cylinder misfires.
P0304
0304No. 4 cylinder misfire
detectedNo. 4 cylinder misfires.

EC-312
[QR (WITH EURO-OBD)]
DTC P1217 ENGINE OVER TEMPERATURE
ECM Terminals and Reference Value
EBS00BCL
Specification data are reference values and are measured between each terminal and body ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
On Board Diagnosis LogicEBS00BCM
If the cooling fan or another component in the cooling system malfunctions, engine coolant temperature will
rise.
When the engine coolant temperature reaches an abnormally high temperature condition, a malfunction is
indicated.
CAUTION:
When a malfunction is indicated, be sure to replace the coolant. Refer toCO-9, "
Changing Engine
Coolant". Also, replace the engine oil. Refer toLU-8, "Changing Engine Oil".
1. Fill radiator with coolant up to specified level with a filling speed of 2 liters per minute. Be sure to
use coolant with the proper mixture ratio. Refer toMA-19, "
Engine Coolant Mixture Ratio".
2. After refilling coolant, run engine to ensure that no water-flow noise is emitted.
Overall Function CheckEBS00BCN
Use this procedure to check the overall function of the cooling fan. During this check, a DTC might not be con-
firmed.
COOLING FAN
lEngine: After warming up, idle
the engine
lAir conditioner switch: OFFEngine coolant temperature is 94°C
(201°F) or lessOFF
Engine coolant temperature is
between 95°C (203°F) and 104°C
(219°F)LOW
Engine coolant temperature is 105°C
(221°F) or moreHIGH MONITOR ITEM CONDITION SPECIFICATION
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
27 LG/BCooling fan relay
(High)[Engine is running]
lCooling fan is not operatingBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
lCooling fan is high speed operating0-1.0V
37 LGCooling fan relay
(Low)[Engine is running]
lCooling fan is not operatingBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
lCooling fan is operating0-1.0V
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1217
1217Engine over tempera-
ture (Overheat)
lCooling fan does not operate properly (Over-
heat).
lCooling fan system does not operate prop-
erly (Overheat).
lEngine coolant was not added to the system
using the proper filling method.
lHarness or connectors
(The cooling fan circuit is open or
shorted.)
lCooling fan
lRadiator hose
lRadiator
lRadiator cap
lWater pum p
lThermostat
For more information, refer toEC-323,
"Main 12 Causes of Overheating".

DTC P1217 ENGINE OVER TEMPERATURE
EC-319
[QR (WITH EURO-OBD)]
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8.CHECK THERMOSTAT
1. Check valve seating condition at normal room temperatures.
It should seat tightly.
2. Check valve opening temperature and valve lift.
3. Check if valve is closed at 5°C(9°F) below valve opening tem-
perature.
For details, refer toCO-21, "
THERMOSTAT AND WATER CON-
TROL VALVE".
OK or NG
OK >> GO TO 9.
NG >> Replace thermostat
9.CHECK ENGINE COOLANT TEMPERATURE SENSOR
Refer toEC-145, "
Component Inspection".
OK or NG
OK >> GO TO 10.
NG >> Replace engine coolant temperature sensor.
10.CHECK MAIN 12 CAUSES
If the cause cannot be isolated, go toEC-323, "
Main 12 Causes of Overheating".
>>INSPECTION END
PROCEDURE A
1.CHECK POWER SUPPLY
1. Turn ignition switch “OFF”.
2. Disconnect cooling fan relay-1.
3. Turn ignition switch “ON”.
4. Check voltage between cooling fan relay-1 terminals 1, 5, 7 and
ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.Valve opening temperature: 82°C (180°F) [standard]
Valve lift: More than 8 mm/95°C
(0.31 in/203°F)
SLC343
Vo l ta g e : B a t t e r y v o l ta g e
PBIB0577E