cooling NISSAN X-TRAIL 2003 Electronic Manual PDF

DTC P1217 ENGINE OVER TEMPERATURE
EC-319
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
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

EC-320
[QR (WITH EURO-OBD)]
DTC P1217 ENGINE OVER TEMPERATURE
2.DETECT MALFUNCTIONING PART
Check the following.
l10A fuse
lFuse block (J/B) connector E103
l40A fusible links
lHarness for open or short between cooling fan relay-1 and fuse
lHarness for open or short between cooling fan relay-1 and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECK COOLING FAN MOTORS CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect cooling fan motor-1 harness connector and cooling
fan motor-2 harness connector.
3. Check harness continuity between cooling fan relay-1 terminal 3 and cooling fan motor-1 terminal 1, cool-
ing fan motor-1 terminal 4 and body ground.
Refer to wiring diagram.
4. Also check harness for short to ground and short to power.
5. Check harness continuity between cooling fan relay-1 terminal 6 and cooling fan motor-2 terminal 1, cool-
ing fan motor-2 terminal 4 and body ground.
Refer to wiring diagram.
6. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK OUTPUT SIGNAL CIRCUIT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 37 and cooling fan relay-1 terminal 2.
Refer to wiring diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
PBIB0504E
Continuity should exist.
Continuity should exist.
Continuity should exist.

DTC P1217 ENGINE OVER TEMPERATURE
EC-321
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
5.DETECT MALFUNCTIONING PART
Check the following.
lHarness connectors E61, F38
lHarness for open or short between cooling fan relay-1 and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.CHECK COOLING FAN RELAY-1
Refer toEC-324, "
Component Inspection".
OK or NG
OK >> GO TO 7.
NG >> Replace cooling fan relay.
7.CHECK COOLING FAN MOTORS-1 AND -2
Refer toEC-324, "
Component Inspection".
OK or NG
OK >> GO TO 8.
NG >> Replace cooling fan motors.
8.CHECK INTERMITTENT INCIDENT
PerformEC-107, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
PROCEDURE B
1.CHECK POWER SUPPLY
1. Turn ignition switch “OFF”.
2. Disconnect cooling fan relays-2 and -3.
3. Turn ignition switch “ON”.
4. Check voltage between cooling fan relays-2 and -3 terminals 1,
3 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.Voltage: Battery voltage.
PBIB0251E

EC-322
[QR (WITH EURO-OBD)]
DTC P1217 ENGINE OVER TEMPERATURE
2.DETECT MALFUNCTIONING PART
Check the following.
l10A fuse
lFuse block (J/B) connector E103
l40A fusible links
lHarness for open or short between cooling fan relays-2 and -3 and fuse
lHarness for open or short between cooling fan relays-2 and -3 and fusible links
>> Repair harness or connectors.
3.CHECK COOLING FAN MOTORS CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect cooling fan motor-1 harness connector and cooling fan motor-2 harness connector.
3. Check harness continuity between the following;
cooling fan relay-2 terminal 5 and cooling fan motor-1 terminal 2,
cooling fan relay-2 terminal 6 and cooling fan motor-1 terminal 3,
cooling fan relay-2 terminal 7 and body ground.
Refer to wiring diagram.
4. Also check harness for short to ground and short to power.
5. Check harness continuity between the following;
cooling fan relay-3 terminal 5 and cooling fan motor-2 terminal 2,
cooling fan relay-3 terminal 6 and cooling fan motor-2 terminal 3,
cooling fan relay-3 terminal 7 and body ground.
Refer to wiring diagram.
6. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK OUTPUT SIGNAL CIRCUIT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 27 and cooling fan relay-2 terminal 2, cooling fan relay-3
terminal 2.
Refer to wiring diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the following.
lHarness connectors E61, F38
lHarness for open or short between cooling fan relays-2, -3 and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors. Continuity should exist.
Continuity should exist.
Continuity should exist.

DTC P1217 ENGINE OVER TEMPERATURE
EC-323
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
6.CHECK COOLING FAN RELAYS-2 AND -3
Refer toEC-324, "
COOLING FAN RELAYS-1, -2 AND -3".
OK or NG
OK >> GO TO 7.
NG >> Replace cooling fan relays.
7.CHECK COOLING FAN MOTORS
Refer toEC-324, "
COOLING FAN MOTORS-1 AND -2".
OK or NG
OK >> GO TO 8.
NG >> Replace cooling fan motors.
8.CHECK INTERMITTENT INCIDENT
PerformEC-107, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Main 12 Causes of OverheatingEBS00BCQ
Engine Step Inspection item Equipment Standard Reference page
OFF 1
lBlocked radiator
lBlocked condenser
lBlocked radiator grille
lBlocked bumper
lVisual No blocking —
2
lCoolant mixturelCoolant tester 50 - 50% coolant mixture SeeMA-19, "Engine
Coolant Mixture Ratio".
3
lCoolant levellVisual Coolant up to MAX level
in reservoir tank and radi-
ator filler neckSeeCO-9, "Changing
Engine Coolant".
4
lRadiator caplPressure tester 59 - 98 kPa
(0.59 - 0.98 bar, 0.6 - 1.0
kg/cm
2,9-14psi)(Limit)SeeCO-13, "
CHECKING
RADIATOR CAP".
ON*
25lCoolant leakslVisual No leaks SeeCO-9, "LEAK
CHECK".
ON*
26lThermostatlTouch the upper and
lower radiator hosesBoth hoses should be hot SeeCO-21, "THERMO-
STAT AND WATER CON-
TROL VALVE",andCO-
12, "RADIATOR".
ON*
17lCooling fanlCONSULT-II Operating See trouble diagnosis for
DTC P1217 (EC-311
).
OFF 8
lCombustion gas leaklColor checker chemical
tester 4 Gas analyzerNegative —
ON*
39lCoolant temperature
gaugelVisual Gauge less than 3/4
when driving—
lCoolant overflow to
reservoir tanklVisual No overflow during driving
and idlingSeeCO-9, "Changing
Engine Coolant".
OFF*
410lCoolant return from
reservoir tank to radia-
torlVisual Should be initial level in
reservoir tankSeeCO-9, "LEVEL
CHECK".

EC-324
[QR (WITH EURO-OBD)]
DTC P1217 ENGINE OVER TEMPERATURE
*1: Turn the ignition switch ON.
*2: Engine running at 3,000 rpm for 10 minutes.
*3: Drive at 90 km/h (55 MPH) for 30 minutes and then let idle for 10 minutes.
*4: After 60 minutes of cool down time.
For more information, refer toCO-5, "
OVERHEATING CAUSE ANALYSIS".
Component InspectionEBS00BCR
COOLING FAN RELAYS-1, -2 AND -3
Check continuity between terminals 3 and 5, 6 and 7.
If NG, replace relay.
COOLING FAN MOTORS-1 AND -2
1. Disconnect cooling fan motor harness connectors.
2. Supply cooling fan motor terminals with battery voltage and
check operation.
Cooling fan motor should operate.
If NG, replace cooling fan motor.
OFF 11lCylinder headlStraight gauge feeler
gauge0.1 mm (0.004 in) Maxi-
mum distortion (warping)SeeEM-52, "CYLINDER
HEAD".
12
lCylinder block and pis-
tonslVisual No scuffing on cylinder
walls or pistonSeeEM-52, "CYLINDER
HEAD". Engine Step Inspection item Equipment Standard Reference page
Conditions Continuity
12V direct current supply between terminals 1 and 2 Yes
No current supply No
SEF745U
SpeedTe r m i n a l s
(+) (-)
Cooling fan motorLow 1 4
High 1, 2 3, 4
SEF734W

REFRIGERANT PRESSURE SENSOR
EC-359
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
REFRIGERANT PRESSURE SENSORPFP:92136
Component DescriptionEBS00BDS
The refrigerant pressure sensor is installed at the liquid tank of the
air conditioner system. The sensor uses an electrostatic volume
pressure transducer to convert refrigerant pressure to voltage. The
voltage signal is sent to ECM, and ECM controls cooling fan system.
ECM Terminals and Reference ValueEBS00BDT
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.
PBIB0503E
SEF099X
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
58 B Sensors' ground[Engineisrunning]
lWarm-up condition
lIdle speedApproximately 0V
65 RSensor's power sup-
ply[Ignition switch “ON”]Approximately 5V
83 R/LRefrigerant pressure
sensor[Engineisrunning]
lWarm-up condition
lBoth A/C switch and blower switch are “ON”.
(Compressor operates.)1.0 - 4.0V

ENGINE CONTROL SYSTEM
EC-389
[QR (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
System ChartEBS00BET
*1: This sensor is not used to control the engine system under normal conditions.
*2: These signals are sent to the ECM through CAN communication line.
Multiport Fuel Injection (MFI) SystemEBS00BEU
INPUT/OUTPUT SIGNAL CHART
*1: Under normal conditions, this sensor is not for engine control operation.
*2: This signal is sent to the ECM through CAN communication line.Input (Sensor) ECM Function Output (Actuator)
lCamshaft position sensor (PHASE)
lCrankshaft position sensor (POS)
lMass air flow sensor
lEngine coolant temperature sensor
lHeated oxygen sensor 1
lThrottle position sensor
lAccelerator pedal position sensor
lPark/neutral position (PNP) switch
lIntake air temperature sensor
lPower steering pressure sensor
lIgnition switch
lBattery voltage
lKnock sensor
lRefrigerant pressure sensor
lHeated oxygen sensor 2 *1
lTCM (Transmission control module) *2
lESP/TCS/ABS control unit *2
lWheel sensor
lAir conditioner switch
lElectrical loadFuel injection & mixture ratio control Fuel injectors
Electronic ignition system Power transistors
Fuel pump control Fuel pump relay
On board diagnostic system MI (On the instrument panel)
Heated oxygen sensor 1 heater control Heated oxygen sensor 1 heater
Heated oxygen sensor 2 heater control Heated oxygen sensor 2 heater
EVAP canister purge flow controlEVAP canister purge volume control
solenoid valve
Air conditioning cut control Air conditioner relay
Cooling fan control Cooling fan relays
Sensor Input Signal to ECMECM
functionActuator
Crankshaft position sensor (POS)
Engine speed
Piston position
Fuel injec-
tion & mix-
ture ratio
controlFuel injectors Camshaft position sensor (PHASE)
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Heated oxygen sensor 1 Density of oxygen in exhaust gas
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Park/neutral position (PNP) switch Gear position
Ignition switch Start signal
Knock sensor Engine knocking condition
Battery Battery voltage
Power steering pressure sensor Power steering operation
Heated oxygen sensor 2 *1 Density of oxygen in exhaust gas
ESP/TCS/ABS control unit *2 ESP/TCS operation command
Wheel sensor Vehicle speed
Air conditioner switch Air conditioner operation

EC-420
[QR (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
1 - 6: The numbers refer to the order of inspection.
(continued on next page)Cooling Radiator/Hose/Radiator filler cap
55555 55 25CO-12
Thermostat 5CO-21
Water pum pCO-19
Water galleryCO-7
Cooling fan 5CO-12
Coolant level (low)/Contaminated
coolantCO-9
NATS (Nissan Anti-theft System) 1 1EC-403or
BL-70
ESP/TCS/ABS control unit 2 2EC-547or
BRC-60
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA

TROUBLE DIAGNOSIS
EC-429
[QR (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC27 LG/BCooling fan relay
(High)[Engineisrunning]lCooling fan is not operatingBATTERY VOLTAGE
(11 - 14V)
[Engineisrunning]
lCooling fan is high speed operating0-1.0V
29 B/P Fuel pump relay[Ignition switch “ON”]
lFor 1 seconds after turning ignition switch “ON”
[Engineisrunning]0-1.0V
[Ignition switch “ON”]
lMore than 1 seconds after turning ignition switch
“ON”.BATTERY VOLTAGE
(11 - 14V)
30 PU/WAir conditioner cut
signal[Engineisrunning]
lBoth A/C switch and blower switch are “ON”
(Compressor operates).Approximately 0V
[Engineisrunning]
lA/C switch is “ON”
(Compressor not operates).Approximately 4.6V
33B/W
(With A/T)
W
(With M/T)CAN communication
line[Ignition switch “ON”]Approximately 2.6V
Output voltage varies with the
communication status.
34L/R
(With A/T)
R
(With M/T)CAN communication
line[Ignition switch “ON”]Approximately 2.4V
Output voltage varies with the
communication status.
36 L/OR Tachometer signal[Engineisrunning]
lWarm-up condition
lIdle speed6-7V
[Engineisrunning]
lEngine speed is 2,500 rpm6-7V
37 LGCooling fan relay
(Low)[Engineisrunning]
lCooling fan is not operatingBATTERY VOLTAGE
(11 - 14V)
[Engineisrunning]
lCooling fan is operating0-1.0V
40 P Stop lamp switch[Engineisrunning]
lBrake pedal fully releasedApproximately 0V
[Engineisrunning]
lBrake pedal fully depressedBATTERY VOLTAGE
(11 - 14V)
41 B/Y Start signal[Ignition switch “ON”]Approximately 0V
[Ignition switch “START”]9-14V TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB0523E
PBIB0524E