2005 NISSAN X-TRAIL diagram

EC-1634
[YD (WITHOUT EURO-OBD)]
DTC P2146, P2149 FUEL INJECTOR POWER SUPPLY

Diagnostic ProcedureEBS01253
1. CHECK FUEL INJECOR POWER CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Disconnect fuel injector harness connector.
4. Check harness continuity between the following terminals corre-
sponding to the malfunctioning cylinder.
Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 2.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
2. CHECK INTERMITTENT INCIDENT
Refer to EC-1414, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Terminal
Cylinder
ECM Fuel injector
43No.1
53No.2
53No.3
43No.4
Continuity should exist.
PBIB1896E

EC-1636
[YD (WITHOUT EURO-OBD)]
DTC P2147, P2148 FUEL INJECTOR CIRCUIT

Wiring DiagramEBS01259
TBWA0569E

DTC P2147, P2148 FUEL INJECTOR CIRCUIT
EC-1639
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

2. CHECK ECM OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Disconnect fuel injector harness connector.
2. Disconnect ECM harness connector.
3. Check harness continuity between the following terminals corre-
sponding to the malfunctioning cylinder.
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 FUEL INJECTOR
Refer to EC-1640, "
Component Inspection" .
OK or NG
OK >> GO TO 4.
NG >> Replace fuel injector.
4. CHECK INTERMITTENT INCIDENT
Refer to EC-1414, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
CylinderTerminal
Continuity
Fuel injector ECM
No.1342, 43 Should not exist
4 Should exist
442,43 Should exist
4 Should not exist
No.2321, 22 Should not exist
5 Should exist
421, 22 Should exist
5 Should not exist
No.3323, 24 Should not exist
5 Should exist
423, 24 Should exist
5 Should not exist
No.4340, 41 Should not exist
4 Should exist
440, 41 Should exist
4 Should not exist
PBIB1896E

EC-1644
[YD (WITHOUT EURO-OBD)]
GLOW CONTROL SYSTEM

Wiring DiagramEBS0125I
LHD MODELS
TBWA0577E

GLOW CONTROL SYSTEM
EC-1649
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

9. CHECK GLOW RELAY OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 37 and glow relay terminal 2.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 11.
NG >> GO TO 10.
10. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors E64, F5

Harness for open or short between glow relay and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
11 . CHECK HARNESS CONTINUITY BETWEEN GLOW RELAY AND GLOW PLUG FOR OPEN AND
SHORT
1. Disconnect glow plug harness connector.
2. Check harness continuity between glow relay terminal 5 and glow plug harness connector.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 12.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
12. CHECK GLOW RELAY
Refer to EC-1650, "
Component Inspection" .
OK or NG
OK >> GO TO 13.
NG >> Replace glow relay.
13. CHECK GLOW PLUG
Refer to EC-1650, "
Component Inspection" .
OK or NG
OK >> GO TO 14.
NG >> Replace glow plug.
14. CHECK INTERMITTENT INCIDENT
Refer to EC-1414, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END Continuity should exist.
Continuity should exist.

EGR VOLUME CONTROL SYSTEM
EC-1653
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

Wiring DiagramEBS0125P
TBWB0009E

EC-1656
[YD (WITHOUT EURO-OBD)]
EGR VOLUME CONTROL SYSTEM

3. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors F30, M63

Harness for open or short between EGR volume control valve and ECM

Harness for open or short between EGR volume control valve and ECM relay
>> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK EGR VOLUME CONTROL VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminals and EGR volume control valve terminals as follows.
Refer to Wiring Diagram.
4. 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.
5. CHECK EGR VOLUME CONTROL VALVE
Refer to EC-1656, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace EGR volume control valve.
6. CHECK EGR PASSAGE
Check the following for clogging and cracks.

EGR tube

EGR hose

EGR cooler
OK or NG
OK >> GO TO 7.
NG >> Repair or replace EGR passage.
7. CHECK INTERMITTENT INCIDENT
Refer to EC-1414, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS0125R
EGR VOLUME CONTROL VALVE
With CONSULT-II
1. Disconnect EGR volume control valve harness connector.
ECM terminal EGR volume control valve terminal
25 1
26 6
27 3
28 4
Continuity should exist.

EC-1660
[YD (WITHOUT EURO-OBD)]
TC BOOST CONTROL SOLENOID VALVE

Wiring DiagramEBS0125V
TBWB0010E