NISSAN X-TRAIL 2003 Electronic Repair Manual

DTC P1217 ENGINE OVER TEMPERATURE
EC-557
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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, cooling 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, cooling 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.
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-561, "
Component Inspection".
OK or NG
OK >> GO TO 7.
NG >> Replace cooling fan relay.
7.CHECK COOLING FAN MOTORS-1 AND -2
Refer toEC-561, "
Component Inspection".
OK or NG
OK >> GO TO 8.
NG >> Replace cooling fan motors.Continuity should exist.
Continuity should exist.
PBIB0504E
Continuity should exist.

EC-558
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DTC P1217 ENGINE OVER TEMPERATURE
8.CHECK INTERMITTENT INCIDENT
PerformEC-453, "
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.
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. Voltage: Battery voltage
PBIB0251E

DTC P1217 ENGINE OVER TEMPERATURE
EC-559
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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.
6.CHECK COOLING FAN RELAYS-2 AND -3
Refer toEC-561, "
Component Inspection".
OK or NG
OK >> GO TO 7.
NG >> Replace cooling fan relays.Continuity should exist.
Continuity should exist.
Continuity should exist.

EC-560
[QR (WITHOUT EURO-OBD)]
DTC P1217 ENGINE OVER TEMPERATURE
7.CHECK COOLING FAN MOTORS
Refer toEC-561, "
Component Inspection".
OK or NG
OK >> GO TO 8.
NG >> Replace cooling fan motors.
8.CHECK INTERMITTENT INCIDENT
PerformEC-453, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Main 12 Causes of OverheatingEBS00BJG
*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". 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-
S TAT A N D WAT E R C O N -
TROL VALVE",andCO-
12, "RADIATOR".
ON*
17lCooling fanlCONSULT-II Operating See trouble diagnosis for
DTC P1217 (EC-548
).
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".
OFF 11
lCylinder 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".

DTC P1217 ENGINE OVER TEMPERATURE
EC-561
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EC
Component InspectionEBS00BJH
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.
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

EC-562
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DTC P1805 BRAKE SWITCH
DTC P1805 BRAKE SWITCH
PFP:25320
DescriptionEBS00BJI
Brake switch signal is applied to the ECM through the stop lamp switch when the brake pedal is depressed.
This signal is used mainly to decrease the engine speed when the vehicle is driving.
CONSULT-II Reference Value in Data Monitor ModeEBS00BJJ
Specification data are reference values.
ECM Terminals and Reference ValueEBS00BJK
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 LogicEBS00BJL
DTC Confirmation ProcedureEBS00BJM
WITH CONSULT-II
1. Turn ignition switch "ON".
2. Fully depress the brake pedal for at least 5 seconds.
3. Erase the DTC with CONSULT-II.
4. Select "DATA MONITOR" mode with CONSULT-II.
5. If 1st trip DTC is detected, go toEC-565, "
Diagnostic Procedure"
.
WITHOUT CONSULT-II
1. Turn ignition switch "ON".
2. Fully depress the brake pedal for at least 5 seconds.
3. Erase the "Diagnostic Test Mode II (Self-diagnostic results)" memory. Refer toEC-403, "
How to Erase
DTC ( Without CONSULT-II)".
MONITOR ITEM CONDITION SPECIFICATION
BRAKE SW
lIgnition switch: ONBrake pedal: Fully released OFF
Brake pedal: Slightly depressed ON
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
40 P Stop lamp switch[Engine is running]
lBrake pedal fully releasedApproximately 0V
[Engine is running]
lBrake pedal fully depressedBATTERY VOLTAGE
(11 - 14V)
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1805
1805Brake switchA brake switch signal is not sent to ECM for an
extremely long time while the vehicle is driving.
lHarness or connectors
(Stoplampswitchcircuitisopenor
shorted.)
lStop lamp switch
SEF058Y

DTC P1805 BRAKE SWITCH
EC-563
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4. Turn ignition switch "OFF", wait at least 10 seconds and then turn "ON".
5. Perform "Diagnostic Test Mode II (Self-diagnostic results)" with ECM.
6. If 1st trip DTC is detected, go toEC-565, "
Diagnostic Procedure".

EC-564
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DTC P1805 BRAKE SWITCH
Wiring Diagram
EBS00BJN
TBWA0089E

DTC P1805 BRAKE SWITCH
EC-565
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Diagnostic ProcedureEBS00BJO
1.CHECK STOP LAMP SWITCH CIRCUIT
1. Turn ignition switch "OFF".
2. Check the stop lamp when depressing and releasing the brake pedal.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
2.CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Disconnect stop lamp switch harness connector.
2. Check voltage between stop lamp switch terminal 1 and ground
with CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
l15A fuse
lFuse block (J/B) connector M2
lHarness for open and short between stop lamp switch and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
Brake pedal Stop lamp
Fully released Not illuminated
Depressed Illuminated
PBIB0498E
Voltage: Battery voltage
PBIB0117E

EC-566
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DTC P1805 BRAKE SWITCH
4.CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch "OFF".
2. Disconnect ECM harness connector.
3. Disconnect stop lamp switch harness connector.
4. Check harness continuity between ECM terminal 40 and stop
lamp switch terminal 2.
Refer to Wiring Diagram.
5. 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 M61, M41
lJoint connector-2 (LHD models)
lJoint connector-3 (RHD models)
lHarness for open or short between ECM and stop lamp switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.CHECK STOP LAMP SWITCH
Refer toEC-566, "
Component Inspection".
OK or NG
OK >> GO TO 7.
NG >> Replace stop lamp switch.
7.CHECK INTERMITTENT INCIDENT
Refer toEC-453, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Component InspectionEBS00BJP
STOP LAMP SWITCH
1. Disconnect stop lamp switch harness connector.Continuity should exist.
PBIB0498E
PBIB0498E