2003 NISSAN X-TRAIL Electronic Repair Manual

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Page 1657 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P1123 THROTTLE CONTROL MOTOR RELAY
EC-543
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MA
EC
2. Select “DATA MONITOR” mode with CONSULT-II.
3. If 1st trip DTC is detected, go toEC-545, "
Diagno

Page 1658 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual EC-544
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DTC P1123 THROTTLE CONTROL MOTOR RELAY
Wiring Diagram
EBS00BJ2
TBWA0093E

Page 1659 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P1123 THROTTLE CONTROL MOTOR RELAY
EC-545
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Diagnostic ProcedureEBS00BJ3
1.CHECKTHROTTLECONTROLMOTORRELAYPOWERSUPPLY
1. Turn ignition switch “OFF�

Page 1660 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual EC-546
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DTC P1123 THROTTLE CONTROL MOTOR RELAY
5.CHECK THROTTLE CONTROL MOTOR RELAY OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check continuity between ECM terminal 112 and thr

Page 1661 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P1212 ESP/TCS/ABS COMMUNICATION LINE
EC-547
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DTC P1212 ESP/TCS/ABS COMMUNICATION LINEPFP:47850
DescriptionEBS00D2A
NOTE:
If DTC P1212 is displayed

Page 1662 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual EC-548
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DTC P1217 ENGINE OVER TEMPERATURE
DTC P1217 ENGINE OVER TEMPERATURE
PFP:00000
System DescriptionEBS00BJ9
COOLING FAN CONTROL
The ECM controls the cooling fan correspondi

Page 1663 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P1217 ENGINE OVER TEMPERATURE
EC-549
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ECM Terminals and Reference ValueEBS00BJB
Specification data are reference values and are measured between ea

DTC P1217 ENGINE OVER TEMPERATURE
EC-549
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ECM Terminals and Reference ValueEBS00BJB
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 LogicEBS00BJC
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 CheckEBS00BJD
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)[Engineisrunning]
lCooling fan is not operatingBATTERY VOLTAGE
(11 - 14V)
[Engineisrunning]
lCooling fan is high speed operating0-1.0V
37 LGCooling fan relay
(Low)[Engineisrunning]
lCooling fan is not operatingBATTERY VOLTAGE
(11 - 14V)
[Engineisrunning]
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 pump
lThermostat
For more information, refer toEC-560,
"Main 12 Causes of Overheating".

Page 1664 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual EC-550
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DTC P1217 ENGINE OVER TEMPERATURE
WAR NIN G:
Never remove the radiator cap when the engine is hot. Serious burns could be caused by high pres-
sure fluid escaping from t

EC-550
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DTC P1217 ENGINE OVER TEMPERATURE
WAR NIN G:
Never remove the radiator cap when the engine is hot. Serious burns could be caused by high pres-
sure fluid escaping from the radiator.
Wrap a thick cloth around cap. Carefully remove the cap by turning it a quarter turn to allow built-up
pressure to escape. Then turn the cap all the way off.
WITH CONSULT-II
1. Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is below
the proper range, skip the following steps and go toEC-553,
"Diagnostic Procedure".
2. Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go toEC-553,
"Diagnostic Procedure".
3. Turn ignition switch “ON”.
4. Perform “COOLING FAN” in “ACTIVE TEST” mode with CON-
SULT-II.
5. If the results are NG, go toEC-553, "
Diagnostic Procedure".
WITHOUT CONSULT-II
1. Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is below
the proper range, skip the following steps and go toEC-553,
"Diagnostic Procedure".
2. Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go toEC-553,
"Diagnostic Procedure".
3. Start engine.
Be careful not to overheat engine.
4. Set temperature control lever to full cold position.
5. Turn air conditioner switch “ON”.
6. Turn blower fan switch “ON”.
7. Run engine at idle for a few minutes with air conditioner operating.
Be careful not to overheat engine.
8. Make sure that cooling fan operates at low speed.
If NG, go toEC-553, "
Diagnostic Procedure".
If OK, go to the following step.
9. Turn ignition switch “OFF”.
10. Turn air conditioner switch and blower fan switch “OFF”.
11. Disconnect engine coolant temperature sensor harness connec-
tor.
12. Connect 150Wresistor to engine coolant temperature sensor
harness connector.
SEF621W
SEF646X
SEF621W
SEC163BA

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