NISSAN X-TRAIL 2003 Service Repair Manual

DTC P1217 ENGINE OVER TEMPERATURE
EC-363
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*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 to CO-5, "
OVERHEATING CAUSE ANALYSIS" .
Component InspectionEBS010TG
COOLING FAN RELAYS-1 AND -3
Check continuity between terminals 3 and 5, 6 and 7.
COOLING FAN MOTOR-1
1. Disconnect cooling fan motor harness connector.
2. Supply cooling fan motor terminals with battery voltage and
check operation.
COOLING FAN MOTOR-2
1. Disconnect cooling fan motor harness connector.
2. Supply cooling fan motor terminals with battery voltage and
check operation.
ON*39
Coolant temperature
gauge
Visual Gauge less than 3/4
when driving—

Coolant overflow to
reservoir tank
Visual No overflow during driving
and idlingSee CO-9 .
OFF*
410
Coolant return from
reservoir tank to radia-
tor
Visual Should be initial level in
reservoir tankSee CO-9 .
OFF 11

Cylinder head
Straight gauge feeler
gauge0.1 mm (0.004 in) Maxi-
mum distortion (warping)See EM-67 .
12

Cylinder block and pis-
tons
Visual No scuffing on cylinder
walls or pistonSee EM-82 . Engine Step Inspection item Equipment Standard Reference page
Conditions Continuity
12V direct current supply between ter-
minals 1 and 2Ye s
No current supply No
SEF745U
Terminals
(+) (-)
Cooling fan motor 1 2
PBIB1999E
SpeedTerminals
(+) (-)
Cooling fan motorLow 1 4
High 1., 2 3, 4
SEF734W

EC-364
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DTC P1225 TP SENSOR

DTC P1225 TP SENSORPFP:16119
Component DescriptionEBS010TH
Electric throttle control actuator consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The throttle position sensor has the two sensors. These sensors are
a kind of potentiometers which transform the throttle valve position
into output voltage, and emit the voltage signal to the ECM. In addi-
tion, these sensors detect the opening and closing speed of the
throttle valve and feed the voltage signals to the ECM. The ECM
judges the current opening angle of the throttle valve from these sig-
nals and the ECM controls the throttle control motor to make the
throttle valve opening angle properly in response to driving condi-
tion.
On Board Diagnosis LogicEBS010TI
The MI will not light up for this self-diagnosis.
DTC Confirmation ProcedureEBS010TJ
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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10V at idle.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON.
5. If 1st trip DTC is detected, go to EC-365, "
Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
PBIB0145E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1225
1225Closed throttle position
learning performance
problemClosed throttle position learning value is excessively
low.

Electric throttle control actuator
(TP sensor 1 and 2)
SEF058Y

DTC P1225 TP SENSOR
EC-365
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Diagnostic ProcedureEBS010TK
1. CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1. Turn ignition switch OFF.
2. Remove the intake air duct.
3. Check if foreign matter is caught between the throttle valve and
the housing.
OK or NG
OK >> GO TO 2.
NG >> Remove the foreign matter and clean the electric throttle
control actuator inside.
2. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace the electric throttle control actuator.
2. Perform EC-46, "
Throttle Valve Closed Position Learning" .
3. Perform EC-46, "
Idle Air Volume Learning" .
>>INSPECTION END
Removal and InstallationEBS010TL
ELECTRIC THROTTLE CONTROL ACTUATOR
Refer to EM-17, "INTAKE MANIFOLD" .
PBIB0518E

EC-366
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DTC P1226 TP SENSOR

DTC P1226 TP SENSORPFP:16119
Component DescriptionEBS010TM
Electric throttle control actuator consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The throttle position sensor has the two sensors. These sensors are
a kind of potentiometers which transform the throttle valve position
into output voltage, and emit the voltage signal to the ECM. In addi-
tion, these sensors detect the opening and closing speed of the
throttle valve and feed the voltage signals to the ECM. The ECM
judges the current opening angle of the throttle valve from these sig-
nals and the ECM controls the throttle control motor to make the
throttle valve opening angle properly in response to driving condi-
tion.
On Board Diagnosis LogicEBS010TN
The MI will not light up for this self-diagnosis.
DTC Confirmation ProcedureEBS010TO
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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10V at idle.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON.
5. Repeat steps 3 and 4 for 32 times.
6. If 1st trip DTC is detected, go to EC-367, "
Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
PBIB0145E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1226
1226Closed throttle position
learning performance
problemClosed throttle position learning is not performed
successfully, repeatedly.

Electric throttle control actuator
(TP sensor 1 and 2)
SEF058Y

DTC P1226 TP SENSOR
EC-367
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Diagnostic ProcedureEBS010TP
1. CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1. Turn ignition switch OFF.
2. Remove the intake air duct.
3. Check if foreign matter is caught between the throttle valve and
the housing.
OK or NG
OK >> GO TO 2.
NG >> Remove the foreign matter and clean the electric throttle
control actuator inside.
2. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace the electric throttle control actuator.
2. Perform EC-46, "
Throttle Valve Closed Position Learning" .
3. Perform EC-46, "
Idle Air Volume Learning" .
>>INSPECTION END
Removal and InstallationEBS010TQ
ELECTRIC THROTTLE CONTROL ACTUATOR
Refer to EM-17, "INTAKE MANIFOLD" .
PBIB0518E

EC-368
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DTC P1229 SENSOR POWER SUPPLY

DTC P1229 SENSOR POWER SUPPLYPFP:16119
On Board Diagnosis LogicEBS010TR
This self-diagnosis has the one trip detection logic.
FAIL-SAFE MODE
When the malfunction is detected, the ECM enters fail-safe mode and the MI lights up.
DTC Confirmation ProcedureEBS010TS
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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10V at idle.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for 1 second.
4. If DTC is detected, go to EC-370, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1229
1229Sensor power supply circuit
shortECM detects a voltage of power source
for sensor is excessively low or high.

Harness or connectors
(APP sensor 1 circuit is shorted.)
(PSP sensor circuit is shorted.)
(Refrigerant pressure sensor circuit is
shorted.)

Accelerator pedal position sensor

Power steering pressure sensor

Refrigerant pressure sensor
Engine operation condition in fail-safe mode
ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return
spring.
SEF058Y

DTC P1229 SENSOR POWER SUPPLY
EC-369
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Wiring DiagramEBS010TT
TBWB0262E

EC-370
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DTC P1229 SENSOR POWER SUPPLY

Specification data are reference values and are measured between each terminal and 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.
Diagnostic ProcedureEBS010TU
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body.
Refer to EC-131, "
Ground Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
46 RSensor power supply
(Refrigerant pressure sen-
sor)[Ignition switch: ON]Approximately 5V
65 RSensor power supply
(Power steering pressure
sensor)[Ignition switch: ON]Approximately 5V
90 RSensor power supply
(Accelerator pedal position
sensor 1)[Ignition switch: ON]Approximately 5V
PBIB2021E

DTC P1229 SENSOR POWER SUPPLY
EC-371
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2. CHECK ACCELERATOR PEDAL POSITION SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect accelerator pedal position sensor (APP) sensor har-
ness connector.
2. Turn ignition switch ON.
3. Check voltage between APP sensor terminal 6 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
3. CHECK SENSOR POWER SUPPLY CIRCUIT
Check harness for short to power and short to ground, between the following terminals
OK or NG
OK >> GO TO 4.
NG >> Repair short to ground or short to power in harness or connectors.
4. CHECK COMPONENTS
Check the following.

Refrigerant pressure sensor (Refer to AT C - 9 4 , "COMPONENT INSPECTION" .)

Power steering pressure sensor (Refer to EC-278, "Component Inspection" .)
OK or NG
OK >> GO TO 7.
NG >> Replace malfunctioning component.
5. CHECK APP SENSOR
Refer to EC-392, "
Component Inspection" .
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
PBIB0498E
Voltage: Approximately 5V
PBIB0914E
ECM terminal Sensor terminal Reference Wiring Diagram
90 APP sensor terminal 6EC-369
46 Refrigerant pressure sensor terminal 3EC-452
65 PSP sensor terminal 3EC-274

EC-372
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DTC P1229 SENSOR POWER SUPPLY

6. REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace accelerator pedal assembly.
2. Perform EC-45, "
Accelerator Pedal Released Position Learning" .
3. Perform EC-46, "
Throttle Valve Closed Position Learning" .
4. Perform EC-46, "
Idle Air Volume Learning" .
>>INSPECTION END
7. CHECK INTERMITTENT INCIDENT
Refer to EC-123, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END