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DTC P1128 THROTTLE CONTROL MOTOR
EC-695
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Diagnostic ProcedureEBS01114
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground three screws on the body.
Refer to EC-578, "
Ground Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
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![NISSAN X-TRAIL 2003 Service Repair Manual EC-696
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DTC P1128 THROTTLE CONTROL MOTOR
2. CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Disconnect electric throttle control actuator harness conne NISSAN X-TRAIL 2003 Service Repair Manual EC-696
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DTC P1128 THROTTLE CONTROL MOTOR
2. CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Disconnect electric throttle control actuator harness conne](/manual-img/5/57404/w960_57404-1073.png)
EC-696
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DTC P1128 THROTTLE CONTROL MOTOR
2. CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Disconnect electric throttle control actuator harness connector.
2. Disconnect ECM harness connector.
3. Check harness continuity between the following terminals.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace.
3. CHECK THROTTLE CONTROL MOTOR
Refer to EC-696, "
Component Inspection" .
OK or NG
OK >> GO TO 4.
NG >> GO TO 5.
4. CHECK INTERMITTENT INCIDENT
Refer to EC-570, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness or connectors.
5. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace the electric throttle control actuator.
2. Perform EC-508, "
Throttle Valve Closed Position Learning" .
3. Perform EC-508, "
Idle Air Volume Learning" .
>>INSPECTION END
Component InspectionEBS01115
THROTTLE CONTROL MOTOR
1. Disconnect electric throttle control actuator harness connector.
Electric throttle control
actuator terminalECM terminal Continuity
34 Should exist
5 Should not exist
64 Should not exist
5 Should exist
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DTC P1128 THROTTLE CONTROL MOTOR
EC-697
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2. Check resistance between terminals 3 and 6.
3. If NG, replace electric throttle control actuator and go to next
step.
4. Perform EC-508, "
Throttle Valve Closed Position Learning" .
5. Perform EC-508, "
Idle Air Volume Learning" .
Removal and InstallationEBS01116
ELECTRIC THROTTLE CONTROL ACTUATOR
Refer to EM-17, "INTAKE MANIFOLD" . Resistance: Approximately 1 - 15 Ω [at 25 °C (77°F)]
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Page 1076 of 4179
![NISSAN X-TRAIL 2003 Service Repair Manual EC-698
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DTC P1211 TCS CONTROL UNIT
DTC P1211 TCS CONTROL UNITPFP:47850
DescriptionEBS01117
The malfunction information related to TCS is transferred through the CAN communicat NISSAN X-TRAIL 2003 Service Repair Manual EC-698
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DTC P1211 TCS CONTROL UNIT
DTC P1211 TCS CONTROL UNITPFP:47850
DescriptionEBS01117
The malfunction information related to TCS is transferred through the CAN communicat](/manual-img/5/57404/w960_57404-1075.png)
EC-698
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DTC P1211 TCS CONTROL UNIT
DTC P1211 TCS CONTROL UNITPFP:47850
DescriptionEBS01117
The malfunction information related to TCS is transferred through the CAN communication line from ESP/
TCS/ABS control unit to ECM.
Be sure to erase the malfunction information such as DTC not only for ESP/TCS/ABS control unit but
also for ECM after TCS related repair.
On Board Diagnosis LogicEBS01118
Freeze frame data is not stored in the ECM for this self-diagnosis. The MI will not light up for this self-
diagnosis.
DTC Confirmation ProcedureEBS01119
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 at least 60 seconds.
4. If 1st trip DTC is detected, go to EC-698, "
Diagnostic Procedure"
.
WITHOUT CONSULT-II
1. Start engine and let it idle for at least 60 seconds.
2. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
3. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
4. If 1st trip DTC is detected, go to EC-698, "
Diagnostic Procedure" .
Diagnostic ProcedureEBS0111A
Go to BRC-58, "TROUBLE DIAGNOSIS" .
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1211
1211TCS control unitECM receives a malfunction information from
ESP/TCS/ABS control unit.
ESP/TCS/ABS control unit
TCS related parts
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Page 1077 of 4179
![NISSAN X-TRAIL 2003 Service Repair Manual DTC P1212 TCS COMMUNICATION LINE
EC-699
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DTC P1212 TCS COMMUNICATION LINEPFP:47850
DescriptionEBS0111B
NOTE:
If DTC P1212 is displayed with DTC U1000 NISSAN X-TRAIL 2003 Service Repair Manual DTC P1212 TCS COMMUNICATION LINE
EC-699
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DTC P1212 TCS COMMUNICATION LINEPFP:47850
DescriptionEBS0111B
NOTE:
If DTC P1212 is displayed with DTC U1000](/manual-img/5/57404/w960_57404-1076.png)
DTC P1212 TCS COMMUNICATION LINE
EC-699
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DTC P1212 TCS COMMUNICATION LINEPFP:47850
DescriptionEBS0111B
NOTE:
If DTC P1212 is displayed with DTC U1000 or U1001, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-579, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
This CAN communication line is used to control the smooth engine operation during the TCS operation. Pulse
signals are exchanged between ECM and ESP/TCS/ABS control unit.
Be sure to erase the malfunction information such as DTC not only for ESP/TCS/ABS control unit but
also for ECM after TCS related repair.
On Board Diagnosis LogicEBS0111C
Freeze frame data is not stored in the ECM for this self-diagnosis. The MI will not light up for this self-
diagnosis.
DTC Confirmation ProcedureEBS0111D
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10.5V 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 at least 10 seconds.
4. If a 1st trip DTC is detected, go to EC-699, "
Diagnostic Proce-
dure" .
WITHOUT CONSULT-II
1. Start engine and let it idle for at least 60 seconds.
2. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
3. Perform Diagnostic Test Mode II (Self-diganostic results) with ECM.
4. If 1st trip DTC is detected, go to EC-699, "
Diagnostic Procedure" .
Diagnostic ProcedureEBS0111E
1. CHECK ESP/TCS/ABS CONTROL UNIT FUNCTION
Refer to BRC-58, "
TROUBLE DIAGNOSIS" .
>>INSPECTION END
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1212
1212TCS communication
lineECM can not receive the information
from ESP/TCS/ABS control unit continu-
ously.
Harness or connectors
(The CAN communication line is open or
shorted.)
ESP/TCS/ABS control unit
Dead (Weak) battery
SEF058Y
Page 1078 of 4179
![NISSAN X-TRAIL 2003 Service Repair Manual EC-700
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DTC P1217 ENGINE OVER TEMPERATURE
DTC P1217 ENGINE OVER TEMPERATUREPFP:00000
System DescriptionEBS0111F
NOTE:
If DTC P1217 is displayed with DTC U1000, U1001, first pe NISSAN X-TRAIL 2003 Service Repair Manual EC-700
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DTC P1217 ENGINE OVER TEMPERATURE
DTC P1217 ENGINE OVER TEMPERATUREPFP:00000
System DescriptionEBS0111F
NOTE:
If DTC P1217 is displayed with DTC U1000, U1001, first pe](/manual-img/5/57404/w960_57404-1077.png)
EC-700
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DTC P1217 ENGINE OVER TEMPERATURE
DTC P1217 ENGINE OVER TEMPERATUREPFP:00000
System DescriptionEBS0111F
NOTE:
If DTC P1217 is displayed with DTC U1000, U1001, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-579, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
COOLING FAN CONTROL
*1: This signal is sent to ECM through CAN communication line.
*2: ECM determines the start signal status by the signals of engine speed and battery voltage.
The ECM controls the cooling fan corresponding to the vehicle speed, engine coolant temperature, refrigerant
pressure, and air conditioner ON signal. The control system has 3-step control [HIGH/LOW/OFF].
The ECM sends a cooling fan control signal to the smart entrance control unit through CAN communication
line, and the smart entrance control unit controls cooling fan relays.
OPERATION
CONSULT-II Reference Value in Data Monitor ModeEBS0111G
Specification data are reference values.
Sensor Input Signal to ECM ECM function Actuator
Wheel sensor*
1Vehicle speed
Cooling fan
controlCooling fan relay Engine coolant temperature sensor Engine coolant temperature
Air conditioner switch Air conditioner ON signal
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed*
2
Battery
Battery voltage*2
Refrigerant pressure sensor Refrigerant pressure
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![NISSAN X-TRAIL 2003 Service Repair Manual DTC P1217 ENGINE OVER TEMPERATURE
EC-701
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On Board Diagnosis LogicEBS0111H
If the cooling fan or another component in the cooling system malfunctions NISSAN X-TRAIL 2003 Service Repair Manual DTC P1217 ENGINE OVER TEMPERATURE
EC-701
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On Board Diagnosis LogicEBS0111H
If the cooling fan or another component in the cooling system malfunctions](/manual-img/5/57404/w960_57404-1078.png)
DTC P1217 ENGINE OVER TEMPERATURE
EC-701
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On Board Diagnosis LogicEBS0111H
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.
This self-diagnosis has the one trip detection logic.
CAUTION:
When a malfunction is indicated, be sure to replace the coolant. Refer to CO-9, "
Changing Engine
Coolant" . Also, replace the engine oil. Refer to LU-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 to MA-19, "
Engine Coolant Mixture Ratio" .
2. After refilling coolant, run engine to ensure that no water-flow noise is emitted.
Overall Function CheckEBS0111I
Use this procedure to check the overall function of the cooling fan. During this check, a DTC might not be con-
firmed.
WARNING:
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.
MONITOR ITEM CONDITION SPECIFICATION
AIR COND SIG
Engine: After warming up, idle
the engineAir conditioner switch: OFF OFF
Air conditioner switch: ON
(Compressor operates.)ON
COOLING FAN
Engine: After warming up, idle
the engine
Air conditioner switch: OFFEngine coolant temperature is 94°C
(201°F) or lessOFF
Engine coolant temperature is
between 95°C (203°F) and 99°C
(210°F) or moreLOW
Engine coolant temperature is 100°C
(212°F) or moreHIGH
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1217
1217Engine over tempera-
ture (Overheat)
Cooling fan does not operate properly (Over-
heat).
Cooling fan system does not operate prop-
erly (Overheat).
Engine coolant was not added to the system
using the proper filling method.
Engine coolant is not within the specified
range.
Harness or connectors
(The cooling fan circuit is open or
shorted.)
Cooling fan
Radiator hose
Radiator
Radiator cap
Water pump
Thermostat
For more information, refer to EC-714,
"Main 12 Causes of Overheating" .
Page 1080 of 4179
![NISSAN X-TRAIL 2003 Service Repair Manual EC-702
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DTC P1217 ENGINE OVER TEMPERATURE
WITH CONSULT-II
1. Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
I NISSAN X-TRAIL 2003 Service Repair Manual EC-702
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DTC P1217 ENGINE OVER TEMPERATURE
WITH CONSULT-II
1. Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
I](/manual-img/5/57404/w960_57404-1079.png)
EC-702
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DTC P1217 ENGINE OVER TEMPERATURE
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 to EC-707,
"Diagnostic Procedure" .
2. Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to EC-707,
"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 to EC-707, "
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 to EC-707,
"Diagnostic Procedure" .
2. Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to EC-707,
"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 fans operates at low speed.
If NG, go to EC-707, "
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 150Ω resistor to engine coolant temperature sensor
harness connector.
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