2005 NISSAN X-TRAIL ECO mode

DTC P0605 ECM
EC-1227
[YD (WITH EURO-OBD)]
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EC

DTC P0605 ECMPFP:23710
DescriptionEBS011BV
The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The ECM controls the engine.
On Board Diagnosis LogicEBS011BW
DTC Confirmation ProcedureEBS011BX
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 1st trip DTC is detected, go to EC-1228, "
Diagnostic Proce-
dure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
MBIB0625E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0605
0605Engine control module
(ROM)ECM ROM is malfunctioning.

ECM
SEF817Y

DTC P0606 ECM
EC-1229
[YD (WITH EURO-OBD)]
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EC

DTC P0606 ECMPFP:23710
DescriptionEBS011BZ
The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The ECM controls the engine.
On Board Diagnosis LogicEBS011C0
DTC Confirmation ProcedureEBS011C1
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-1230, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
MBIB0625E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0606
0606Engine control module
(Processor)ECM calculation function is malfunctioning.

ECM
SEF817Y

DTC P0628, P0629 FUEL PUMP
EC-1231
[YD (WITH EURO-OBD)]
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EC

DTC P0628, P0629 FUEL PUMPPFP:16700
DescriptionEBS011C3
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 ModeEBS011C4
Specification data are reference values.
On Board Diagnosis LogicEBS011C6
DTC Confirmation ProcedureEBS011C7
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 1st trip DTC is detected, go to EC-1234, "
Diagnostic Proce-
dure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
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

EC-1236
[YD (WITH EURO-OBD)]
DTC P0642, P0643 SENSOR POWER SUPPLY

DTC P0642, P0643 SENSOR POWER SUPPLYPFP:18002
On Board Diagnosis LogicEBS011CF
DTC Confirmation ProcedureEBS011CG
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 1st trip DTC is detected, go to EC-1238, "
Diagnostic Proce-
dure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
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

EC-1240
[YD (WITH EURO-OBD)]
DTC P0652, P0653 SENSOR POWER SUPPLY

DTC P0652, P0653 SENSOR POWER SUPPLYPFP:18002
On Board Diagnosis LogicEBS011CO
DTC Confirmation ProcedureEBS011CP
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 1st trip DTC is detected, go to EC-1242, "
Diagnostic Proce-
dure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0652Sensor 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

DTC P0686 ECM RELAY
EC-1245
[YD (WITH EURO-OBD)]
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EC

DTC P0686 ECM RELAYPFP:25230
On Board Diagnosis LogicEBS011CV
This self-diagnosis has the one trip detection logic.
The MI will not light up for this self-diagnosis.
DTC Confirmation ProcedureEBS011CW
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-1247, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
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

DTC P1211 TCS CONTROL UNIT
EC-1249
[YD (WITH EURO-OBD)]
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EC

DTC P1211 TCS CONTROL UNITPFP:47850
DescriptionEBS011D0
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 LogicEBS011D1
This self-diagnosis has the one trip detection logic.
MI will not light up for this self-diagnosis.
DTC Confirmation ProcedureEBS011D2
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-1249, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSLT-II” above.
Diagnostic ProcedureEBS011D3
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

EC-1250
[YD (WITH EURO-OBD)]
DTC P1212 TCS COMMUNICATION LINE

DTC P1212 TCS COMMUNICATION LINEPFP:47850
DescriptionEBS011D4
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-1056, "
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 LogicEBS011D5
This self-diagnosis has the one trip detection logic.
MI will not light up for this self-diagnosis.
DTC Confirmation ProcedureEBS011D6
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-1250, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Diagnostic ProcedureEBS011D7
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