2005 NISSAN X-TRAIL ECO mode

EC-1570
[YD (WITHOUT EURO-OBD)]
DTC P0628, P0629 FUEL PUMP

DTC P0628, P0629 FUEL PUMPPFP:16700
DescriptionEBS0122C
To control the amount of the fuel inhalation of the fuel pump, a plunger is built into the fuel pump. When the
amount of the fuel inhalation of fuel increases, the fuel pump raises the fuel exhalation pressure. As a result,
the fuel injection pressure is raised. When the load of the engine increases, the ECM sends a signal to the fuel
pump to raise the injection pressure.
CONSULT-II Reference Value in Data Monitor ModeEBS0122D
Specification data are reference values.
On Board Diagnosis LogicEBS0122F
DTC Confirmation ProcedureEBS0122G
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.
WITH CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Let engine idle for at least 5 seconds.
4. If DTC is detected, go to EC-1573, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Let engine idle for at least 5 seconds.
3. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
4. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
5. If DTC is detected, go to EC-1573, "
Diagnostic Procedure" .
MONITOR ITEM CONDITION SPECIFICATION
PUMP CURRENT

Engine: After warming up

Air conditioner switch: OFF

Shift lever: Neutral position

No-loadIdle 1,700 - 1,900 mA
2,000 rpm 1,600 - 1,800 mA
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0628
0628Fuel pump control circuit
low inputECM detects a control circuit for the fuel pump is
open or short to ground.

Harness or connectors
(The fuel pump circuit is open or
shorted.)

Fuel pump P0629
0629Fuel pump control circuit
high outputECM detects a control circuit for the fuel pump is
short to power.
SEF817Y

DTC P0642, P0643 SENSOR POWER SUPPLY
EC-1575
[YD (WITHOUT EURO-OBD)]
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DTC P0642, P0643 SENSOR POWER SUPPLYPFP:18002
On Board Diagnosis LogicEBS01FE1
The MI will not light up for these self-diagnoses.
DTC Confirmation ProcedureEBS01FE2
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.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Wait at least 5 seconds.
4. If DTC is detected, go to EC-1577, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Turn ignition switch ON and wait at least 5 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 DTC is detected, go to EC-1577, "
Diagnostic Procedure" .
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0642
0642Sensor power supply cir-
cuit low inputECM detects a voltage of power source for sen-
sor is excessively low.

Harness or connectors
(The APP sensor 1 power supply cir-
cuit is shorted.)

Accelerator pedal position sensor
(Accelerator pedal position sensor 1) P0643
0643Sensor power supply cir-
cuit high inputECM detects a voltage of power source for Sen-
sor is excessively high.
SEF817Y

DTC P0652, P0653 SENSOR POWER SUPPLY
EC-1579
[YD (WITHOUT EURO-OBD)]
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DTC P0652, P0653 SENSOR POWER SUPPLYPFP:18002
On Board Diagnosis LogicEBS01FE6
The MI will not light up for these self-diagnoses.
DTC Confirmation ProcedureEBS01FE7
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.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Wait at least 5 seconds.
4. If DTC is detected, go to EC-1581, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Turn ignition switch ON and wait at least 5 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 DTC is detected, go to EC-1581, "
Diagnostic Procedure" .
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0652
0652Sensor power supply cir-
cuit lowECM detects a voltage of power source for sen-
sor is excessively low.

Harness or connectors
(APP sensor 2 power supply circuit is
shorted.)
(Crankshaft position sensor circuit is
shorted.)
(Camshaft position sensor circuit is
shorted.)
(Fuel rail pressure sensor circuit is
shorted.)
(Turbocharger boost sensor circuit is
shorted.)

Accelerator pedal position sensor
(Accelerator pedal position sensor 2)

Crankshaft position sensor

Camshaft position sensor

Fuel rail pressure sensor

Turbocharger boost sensor P0653
0653Sensor power supply cir-
cuit high inputECM detects a voltage of power source for Sen-
sor is excessively high.
SEF817Y

EC-1584
[YD (WITHOUT EURO-OBD)]
DTC P0686 ECM RELAY

DTC P0686 ECM RELAYPFP:25230
On Board Diagnosis LogicEBS01234
The MI will not light up for this self-diagnosis.
DTC Confirmation ProcedureEBS01235
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.
WITH CONSULT-II
1. Turn ignition switch ON and then turn OFF.
2. Wait at least 30 seconds.
3. Turn ignition switch ON.
4. Select “DATA MONITOR” mode with CONSULT-II.
5. If DTC is detected, go to EC-1586, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Turn ignition switch ON and then turn OFF.
2. Wait at least 30 seconds.
3. Turn ignition switch ON.
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 DTC is detected, go to EC-1586, "
Diagnostic Procedure" .
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0686
0686ECM relay circuitECM detects ECM relay is stuck closed even if
ignition switch OFF.

Harness or connectors
(The ECM relay circuit is shorted.)

ECM relay
SEF817Y

EC-1588
[YD (WITHOUT EURO-OBD)]
DTC P1211 TCS CONTROL UNIT

DTC P1211 TCS CONTROL UNITPFP:47850
DescriptionEBS01239
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 LogicEBS0123A
The MI will not light up for this self-diagnosis.
DTC Confirmation ProcedureEBS0123B
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.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Wait at least 5 seconds.
4. If DTC is detected, go to EC-1588, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Turn ignition switch ON and wait at least 5 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 DTC is detected, go to EC-1588, "
Diagnostic Procedure" .
Diagnostic ProcedureEBS0123C
Go to BRC-60, "TROUBLE DIAGNOSIS" (models with ESP system) or BRC-12, "TROUBLE DIAGNOSIS"
(model without ESP system).
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
SEF817Y

DTC P1212 TCS COMMUNICATION LINE
EC-1589
[YD (WITHOUT EURO-OBD)]
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DTC P1212 TCS COMMUNICATION LINEPFP:47850
DescriptionEBS0123D
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.
NOTE:

If DTC P1212 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000.
Refer to EC-1425, "
DTC U1000 CAN COMMUNICATION LINE" .

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 LogicEBS0123E
The MI will not light up for this self-diagnosis.
DTC Confirmation ProcedureEBS0123F
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.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Wait at least 5 seconds.
4. If DTC is detected, go to EC-1589, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Turn ignition switch ON and wait at least 5 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 DTC is detected, go to EC-1589, "
Diagnostic Procedure" .
Diagnostic ProcedureEBS0123G
Go to BRC-60, "TROUBLE DIAGNOSIS" (models with ESP system) or BRC-12, "TROUBLE DIAGNOSIS"
(model without ESP system).
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 continuously.

Harness or connectors
(The CAN communication line is
open or shorted.)

ESP/TCS/ABS control unit

Dead (Weak) battery
SEF817Y

DTC P1260 - P1267 FUEL INJECTOR ADJUSTMENT RESISTOR
EC-1591
[YD (WITHOUT EURO-OBD)]
C
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DTC Confirmation ProcedureEBS0123K
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.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Wait at least 5 seconds.
4. If DTC is detected, go to EC-1593, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Turn ignition switch ON and wait at least 5 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 DTC is detected, go to EC-1593, "
Diagnostic Procedure" .
SEF817Y

DTC P1268 - P1271 FUEL INJECTOR
EC-1597
[YD (WITHOUT EURO-OBD)]
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DTC Confirmation ProcedureEBS01271
CAUTION:
Always drive vehicle in safe manner according to traffic conditions and obey all traffic laws when driv-
ing.
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.
WITH CONSULT-II
1. Turn ignition switch ON, and select “DATA MONITOR” mode
with CONSULT-II.
2. Restart engine and let it idle for about 15 minutes.
3. If DTC is detected, go to EC-1600, "
Diagnostic Procedure" .
If DTC is not detected, go to next step.
4. Drive vehicle and maintain the following conditions for at least
60 seconds.
5. If DTC is detected, go to EC-1600, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Start engine and let it idle for about 15 minutes.
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 DTC is detected, go to EC-1600, "
Diagnostic Procedure" .
If DTC is not detected, go to next step.
5. Set voltmeter probes between ECM terminal 70 (engine coolant temperature sensor signal) and ground.
6. Restart engine and drive vehicle and maintain the following conditions for at least 60 seconds.
7. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
8. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
9. If DTC is detected, go to EC-1600, "
Diagnostic Procedure" .
CKPS·RPM 700 - 2000 rpm (A constant rotation is maintained)
COOLAN TEMP/S Less than 75°C (167°F)
Shift lever Suitable position
Accelerator pedal Hold the accelerator pedal as steady as possible.
PBIB2156E
Engine speed· 700 - 2000 rpm (A constant rotation is maintained)
Voltage between ECM
terminal 70 and groundMore than 0.6V
Shift lever Suitable position
Accelerator pedal Hold the accelerator pedal as steady as possible.