2005 NISSAN X-TRAIL display

DTC P0605 ECM
EC-1567
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

Diagnostic ProcedureEBS01227
1. INSPECTION START
With CONSULT-II
1. Turn ignition switch ON.
2. Select “SELF DIAG RESULTS” mode with CONSULT-II.
3. Touch “ERASE”.
4. Perform EC-1566, "
DTC Confirmation Procedure" , again.
5. Is 1st trip DTC P0605 displayed again?
Without CONSULT-II
1. Turn ignition switch ON.
2. Erase the Diagnostic Test Mode II (Self-diagnostic results) memory. Refer to EC-1375
.
3. Perform EC-1566, "
DTC Confirmation Procedure" , again.
4. Is DTC 0605 displayed again?
Ye s o r N o
Ye s > > G O T O 2 .
No >>INSPECTION END
2. REPLACE ECM
1. Replace ECM.
2. Perform initialization of NATS system and registration of all NATS ignition key IDs. Refer to EC-1373,
"NATS (Nissan Anti-theft System)" .
3. Perform Fuel Pump Learning Value Clearing. Refer to EC-1370, "
Fuel Pump Learning Value Clearing" .
>>INSPECTION END

DTC P0606 ECM
EC-1569
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

Diagnostic ProcedureEBS0122B
1. INSPECTION START
With CONSULT-II
1. Turn ignition switch ON.
2. Select “SELF DIAG RESULTS” mode with CONSULT-II.
3. Touch “ERASE”.
4. Perform EC-1568, "
DTC Confirmation Procedure" , again.
5. Is 1st trip DTC P0606 displayed again?
Without CONSULT-II
1. Turn ignition switch ON.
2. Erase the Diagnostic Test Mode II (Self-diagnostic results) memory. Refer to EC-1375
.
3. Perform EC-1568, "
DTC Confirmation Procedure" , again.
4. Is DTC 0606 displayed again?
Ye s o r N o
Ye s > > G O T O 2 .
No >>INSPECTION END
2. REPLACE ECM
1. Replace ECM.
2. Perform initialization of NATS system and registration of all NATS ignition key IDs. Refer to EC-1373,
"NATS (Nissan Anti-theft System)" .
3. Perform “Fuel Pump Learning Value Clearing”. Refer to EC-1370, "
Fuel Pump Learning Value Clearing" .
>>INSPECTION END

DTC P1212 TCS COMMUNICATION LINE
EC-1589
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

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 P1268 - P1271 FUEL INJECTOR
EC-1601
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

4. CHECK FUEL INJECTOR-II
With CONSULT-II
1. Remove two fuel injectors of malfunctioning cylinder and another cylinder.
2. Install fuel injectors to different cylinder.
3. Reconnect ECM harness connector and fuel injector harness connector.
4. Turn ignition switch ON.
5. Select “SELF DIAG RESULTS” mode with CONSULT-II.
6. Touch “ERASE”.
7. Perform DTC Confirmation Procedure, EC-1597, "
DTC Confirmation Procedure" .
8. Is another DTC displayed?
Without CONSULT-II
1. Remove two fuel injectors of malfunctioning cylinder and another cylinder.
2. Install fuel injectors to different cylinder.
3. Reconnect ECM harness connector and fuel injector harness connector.
4. Turn ignition switch ON.
5. Erase the Diagnostic Test Mode II (Self-diagnostic results) memory. Refer to EC-1375
.
6. Perform DTC Confirmation Procedure, EC-1597, "
DTC Confirmation Procedure" .
7. Is another DTC displayed?
Ye s o r N o
OK >> Replace fuel injector or malfunctioning cylinder.
NG >> GO TO 5.
5. CHECK INTERMITTENT INCIDENT
Refer to EC-1414, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS01274
FUEL INJECTOR
1. Disconnect fuel injector.
2. Check continuity between terminals as shown in the figure.
3. If NG, replace fuel injector.
Removal and InstallationEBS01275
FUEL INJECTOR
Refer to EM-167, "INJECTION TUBE AND FUEL INJECTOR" .
Continuity should exist.
PBIB0406E

EC-1602
[YD (WITHOUT EURO-OBD)]
DTC P1272 FUEL PUMP

DTC P1272 FUEL PUMPPFP:16700
DescriptionEBS0123R
When the fuel pressure in fuel rail increases to excessively high, fuel
pressure relief valve opens to carry excess fuel to the return hose.
CONSULT-II Reference Value in Data Monitor ModeEBS012AN
Specification data are reference values.
On Board Diagnosis LogicEBS0123S
The MI will not light up for this self-diagnosis.
NOTE:

If DTC P1272 is displayed with DTC P0652 or P0653, first perform trouble diagnosis for DTC P0652
or P0653. Refer to EC-1602, "
DTC P1272 FUEL PUMP" .
DTC Confirmation ProcedureEBS0123T
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. Start engine and keep engine speed more than 4,000 rpm for at
least 5 seconds, then release the accelerator pedal.
4. If DTC is detected, go to EC-1605, "
Diagnostic Procedure" .
PBIB1900E
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
P1272
1272Fuel rail pressure relief
valve openFuel rail pressure relief valve is open
because of fuel pressure control system mal-
function.

Harness or connectors
(Fuel pump circuit is open or shorted.)

Fuel pump

Fuel rail pressure sensor

Air mixed with fuel

Lack of fuel

Fuel transport pump operation
SEF817Y

DTC P1273 FUEL PUMP
EC-1609
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

DTC P1273 FUEL PUMPPFP:16700
DescriptionEBS0123X
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 pump increases, the fuel 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 ModeEBS0123Y
Specification data are reference values.
On Board Diagnosis LogicEBS01240
The MI will not light up for this self-diagnosis.
NOTE:

If DTC P1273 is displayed with DTC P0652 or P0653, first perform trouble diagnosis for DTC P0652
or P0653. Refer to EC-1609, "
DTC P1273 FUEL PUMP" .
DTC Confirmation ProcedureEBS01241
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. Keep engine speed more than 2,000 rpm for at least 10 sec-
onds.
4. If DTC is detected, go to EC-1611, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Keep engine speed more than 2,000 rpm for at least 10 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-1611, "
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
P1273
1273Fuel pump insufficient flowECM detects the abnormal pulse of fuel pres-
sure.

Fuel pump

Air mixed with fuel

Lack of fuel

Fuel rail pressure sensor

Fuel transport pump operation
SEF817Y

EC-1612
[YD (WITHOUT EURO-OBD)]
DTC P1273 FUEL PUMP

2. PERFORM FUEL PUMP LEARNING VALUE CLEARING
NOTE:
If the DTC is detected because of air mixed with fuel (i.e.: caused by lack of fuel), it may become normal by
performing following procedure.
With CONSULT-II
1. Turn ignition switch ON.
2. Clear fuel pump learning value. Refer to EC-1370, "
Fuel Pump Learning Value Clearing" .
3. Start engine and let it idle for at least 60 seconds.
4. Select “SELF-DIAG RESULT” mode with CONSULT-II.
5. Touch “ERASE”.
6. Perform EC-1609, "
DTC Confirmation Procedure" , again.
7. Is DTC detected again?
Without CONSULT-II
1. Turn ignition switch ON.
2. Clear fuel pump learning value. Refer to EC-1370, "
Fuel Pump Learning Value Clearing" .
3. Start engine and let it idle for at least 60 seconds.
4. Erase the Diagnostic Test Mode II (Self-diagnostic results) memory. Refer to EC-1375
.
5. Perform EC-1609, "
DTC Confirmation Procedure" , again.
6. Is DTC displayed again?
Ye s o r N o
Yes >> GO TO 3.
No >>INSPECTION END
3. CHECK ECM OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector and fuel pump harness
connectors.
3. Check harness continuity between ECM terminal 10 and fuel
pump terminal 2.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
4. CHECK FUEL PUMP GROUND CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 29 and fuel pump terminal 1.
Refer to Wiring Diagram.
2. 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.
Continuity should exist.
PBIB1943E
Continuity should exist.

EC-1614
[YD (WITHOUT EURO-OBD)]
DTC P1274 FUEL PUMP

DTC P1274 FUEL PUMPPFP:16700
DescriptionEBS01246
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 ModeEBS01247
Specification data are reference values.
On Board Diagnosis LogicEBS01249
NOTE:

If DTC P1274 is displayed with DTC P0652 or P0653, first perform trouble diagnosis for DTC P0652
or P0653. Refer to EC-1614, "
DTC P1274 FUEL PUMP" .
DTC Confirmation ProcedureEBS0124A
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. Tuning ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let idle for at least 5 seconds.
4. If DTC is detected, go to EC-1617, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Start engine and let idle for 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-1617, "
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
P1274
1274Fuel pump protectionFuel pressure is too much higher than the target
value.

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

Fuel pump

Fuel rail pressure sensor
SEF817Y