2001 NISSAN X-TRAIL ignition

EC-1498
[YD]
DTC P1180 FUEL TEMPERATURE SENSOR
Diagnostic Procedure
EBS004T8
1. CHECK FUEL TEMPERATURE SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect fuel temperature sensor harness connector.
3. Turn ignition switch “ON”.
4. Check voltage between fuel temperature sensor terminal 1 and
engine ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connectors.
2. CHECK FUEL TEMPERATURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Check harness continuity between fuel temperature sensor terminal 2 and ground. Refer to Wiring Dia-
gram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. DETECT MALFUNCTIONING PART
Check harness for open or short to between ECM and fuel temperature sensor.
>> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK INTERMITTENT INCIDENT
Refer to EC-1441, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Removal and InstallationEBS008Z2
FUEL SUPPLY PUMP
Refer to EM-147, "FUEL SUPPLY PUMP" .
PBIB0464E
Voltage: Approximately 5V
PBIB0420E
Continuity should exist.

DTC P1211 TCS CONTROL UNIT
EC-1499
[YD]
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DTC P1211 TCS CONTROL UNITPFP:47850
DescriptionEBS00LUJ
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 LogicEBS00LUK
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 ProcedureEBS00LUL
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 60 seconds.
4. If 1st trip DTC is detected, go to EC-1499, "
Diagnostic Proce-
dure" .
Diagnostic ProcedureEBS00LUM
Go to BRC-64, "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
SEF058Y

EC-1500
[YD]
DTC P1212 TCS COMMUNICATION LINE
DTC P1212 TCS COMMUNICATION LINE
PFP:47850
DescriptionEBS00LUN
NOTE:
If DTC P1212 is displayed with DTC U1000 or U1001, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-1448, "
DTC U1000 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 LogicEBS00LUO
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 ProcedureEBS00LUP
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-1500, "
Diagnostic Proce-
dure" .
Diagnostic ProcedureEBS00LUQ
1. CHECK ESP/TCS/ABS CONTROL UNIT FUNCTION
Refer to BRC-64, "
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 (models with ESP)
SEF058Y

DTC P1216 EDU
EC-1501
[YD]
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DTC P1216 EDUPFP:22710
DescriptionEBS008X9
The ECM sends the fuel injection signal to EDU (Electronic Drive Unit). Then the EDU sends ON signals to
fuel injectors to operate them.
The EDU monitors injector ground circuit and sends the feed back signal to the ECM.
ECM Terminals and Reference ValueEBS008XB
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
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.
PBIB0482E
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
A1
A2
A3
A4L/W
Y/PU
PU
YEDU drive No. 2
EDU drive No. 4
EDU drive No. 3
EDU drive No. 1[Engine is running]
●Warm-up condition
●Idle speed0 - 4V
[Engine is running]
●Warm-up condition
●Engine speed is 2,000 rpm0 - 4V
A8
A9R
RPower supply for ECM[Ignition switch “ON”]BATTERY VOLTAGE
(11 - 14V)
PBIB0387E
PBIB0388E

EC-1502
[YD]
DTC P1216 EDU
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
On Board Diagnosis LogicEBS008XC
DTC Confirmation ProcedureEBS008XD
WITH CONSULT-II
1. Turn ignition switch “ON” and wait at least 2 seconds.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and run it for at least 2 seconds at idle speed.
(If engine does not run, turn ignition switch to “START” for at
least 2 seconds.)
4. If DTC is detected, go to EC-1505, "
Diagnostic Procedure" .
A29 W/PU EDU injector check signal[Engine is running]
●Warm-up condition
●Idle speed1 - 5V
[Engine is running]
●Warm-up condition
●Engine speed is 2,000 rpm1 - 5V
D24
D26G
GECM relay (self-shutoff)[Ignition switch “ON”]
[Ignition switch “OFF”]
●For a few seconds after turning ignition
switch “OFF”Approximately 0V
[Ignition switch “OFF”]
●A few seconds passed after turning ignition
switch “OFF”BATTERY VOLTAGE
(11 - 14V) TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
PBIB0391E
PBIB0392E
DTC Malfunction is detected when .... Check Items (Possible cause)
P1216
●EDU feed back signal is not normal pattern.●Harness or connectors
(Injector drive circuit is open or shorted.)
●Electronic drive unit
●Fuel injectors
SEF817Y

DTC P1216 EDU
EC-1505
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Diagnostic ProcedureEBS008XF
1.INSPECTION START
1. Turn ignition switch “START”.
2. Is any cylinder ignited?
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2.CHECK EDU POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect EDU harness connector.
3. Turn ignition switch “ON”.
4. Check voltage between EDU terminal 6 and ground with CON-
SULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
●Harness for open or short between EDU and ECM
●Harness for open or short between EDU and ECM relay
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK EDU GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Check harness continuity between EDU terminal 8 and ground. Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB0407E
Voltage: Battery voltage
PBIB0421E
Continuity should exist.

DTC P1216 EDU
EC-1507
[YD]
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9.CHECK ECM INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector and EDU harness connector.
3. Check continuity between ECM terminal A29 and EDU terminal 5. Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 10.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
10.CHECK INTERMITTENT INCIDENT
Refer to EC-1441, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> Replace EDU.
NG >> Repair or replace.
Removal and InstallationEBS008Z4
FUEL INJECTOR
Refer to EM-144, "INJECTION TUBE AND FUEL INJECTOR" . Continuity should exist.

DTC P1217 OVERHEAT (COOLING SYSTEM)
EC-1509
[YD]
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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 following the procedure in the MA-27,
"Changing Engine Coolant" . Also, replace the 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-18, "
Engine Coolant Mixture Ratio" .
2. After refilling coolant, run engine to ensure that no water-flow noise is emitted.
Overall Function CheckEBS004QV
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 the 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 to EC-1511,
"Diagnostic Procedure" .
2. Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to EC-1511,
"Diagnostic Procedure" .
3. Turn ignition switch “ON”.
4. Perform “COOLING FAN” in “ACTIVE TEST” mode with CON-
SULT-II and make sure that cooling fans operate when touching
“HIGH” or “LOW”.
If NG, go to EC-1511, "
Diagnostic Procedure" .
DTC Malfunction is detected when ... Check Items (Possible Cause)
P1217
●Cooling fan does not operate properly (Overheat).
●Cooling fan system does not operate properly
(Overheat).
●Engine coolant was not added to the system using
the proper filling method.
●Harness or connectors
(The cooling fan circuit is open or shorted.)
●Cooling fan
●Radiator hose
●Radiator
●Radiator cap
●Water pump
●Thermostat
●Engine coolant temperature sensor
For more information, refer to EC-1517, "
Main 12
Causes of Overheating" .
AEC640
SEF111X