NISSAN X-TRAIL 2005 Service Repair Manual

PSP SWITCH
EC-1327
[YD (WITH EURO-OBD)]
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Wiring DiagramEBS011GC
TBWA0583E

EC-1328
[YD (WITH EURO-OBD)]
PSP SWITCH

Specification data are reference values, and are measured between each terminal and ground.
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.
Diagnostic ProcedureEBS011GD
1. CHECK OVERALL FUNCTION
With CONSULT-II
1. Start engine.
2. Check “PW/ST SIGNAL” in “DATA MONITOR” mode with CON-
SULT-II under the following conditions.
Without CONSULT-II
1. Start engine.
2. Check voltage between ECM terminal 99 and ground under the
following conditions.
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage)
111 P / BPower steering pressure
switch[Engine is running]

Steering wheel is being turnedApproximately 0V
[Engine is running]

Steering wheel is not being turnedBATTERY VOLTAGE
(11 - 14V)
Conditions PW/ST SIGNAL
Steering wheel is not being turned OFF
Steering wheel is being turned ON
PBIB0434E
Conditions Voltage
Steering wheel is not being turned Battery voltage
Steering wheel is being turned Approximately 0V
PBIB1948E

PSP SWITCH
EC-1329
[YD (WITH EURO-OBD)]
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2. CHECK POWER STEERING PRESSURE SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect power steering pressure switch harness connector.
3. Check harness continuity between power steering pressure
switch terminal 2 and ground. Refer to Wiring Diagram.
4. Also check harness for short to power.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to power in harness or con-
nectors.
3. CHECK POWER STEERING PRESSURE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 111 and power steering pressure switch terminal 1.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors M63, F30

Harness for open and short between power steering pressure switch and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK POWER STEERING PRESSURE SWITCH
Refer to EC-1329, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace power steering pressure switch.
6. CHECK INTERMITTENT INCIDENT
Refer to EC-1045, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS011GE
POWER STEERING PRESSURE SWITCH
1. Disconnect power steering pressure switch harness connector and then start engine.Continuity should exist.
PBIB1904E
Continuity should exist.

EC-1330
[YD (WITH EURO-OBD)]
PSP SWITCH

2. Check continuity between power steering pressure switch termi-
nal 1 and 2 under the following conditions.
Removal and InstallationEBS0128B
Refer to PS-37, "HYDRAULIC LINE" .
Conditions Continuity
Steering wheel is being fully turned. Yes
Steering wheel is not being turned. No
MBIB0624E

FUEL TRANSPORT PUMP
EC-1331
[YD (WITH EURO-OBD)]
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FUEL TRANSPORT PUMPPFP:17020
DescriptionEBS011PD
SYSTEM DESCRIPTION
Fuel supply entrance of fuel tank is at the left side of fuel tank. The duel at the right side of the fuel tank is sent
to the left side of the fuel tank by fuel transport pump.
When the ECM receives engine revolution signal from the crankshaft position sensor, it knows that the engine
is rotating, and causes the pump operate. If the remainder of the fuel at the right side of the fuel tank
decreases, fuel level switch sends a signal to the ECM. When the ECM receives a signal from the fuel level
switch, the ECM stops the operation of the pump.
The ECM does not directly drive the fuel transport pump. It controls the ON/OFF fuel transport pump relay,
which in turn controls the fuel transport pump.
COMPONENT DESCRIPTION
Fuel Transport Pump
Fuel transport pump sends the fuel from right side of fuel tank to left
side.
Fuel Level Switch
Fuel level switch is assembled in sub fuel level sensor unit. When the remainder of the fuel at the right side of
the fuel tank is less than specified value, the switch is turned OFF.
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor Engine speed
Fuel transport pump control Fuel transport pump relay
Fuel level switch Fuel level
Condition Fuel transport pump operation
Engine is running.Operates
Engine is stopped.Stops
The remainder of the fuel in the fuel tank is less than specified value. Stops
PBIB1887E
PBIB0469E

EC-1332
[YD (WITH EURO-OBD)]
FUEL TRANSPORT PUMP

Wiring DiagramEBS011PF
LHD MODELS
TBWA0590E

FUEL TRANSPORT PUMP
EC-1333
[YD (WITH EURO-OBD)]
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RHD MODELS
TBWA0591E

EC-1334
[YD (WITH EURO-OBD)]
FUEL TRANSPORT PUMP

Specification data are reference values, and are measured between each terminal and ground.
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.
Diagnostic ProcedureEBS011PG
1. CHECK OVERALL FUNCTION
1. Turn ignition switch OFF.
2. Confirm that the engine is cooled down and there are no fire hazards near the vehicle.
3. Disconnect sub fuel level sensor unit harness connector.
4. Remove sub fuel level sensor unit.
5. Reconnect sub fuel level sensor unit harness connector.
6. Soak fuel level switch in fuel and check operating sound of fuel
transport pump.
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage)
14 W/PU Fuel level switch[Ignition switch ON]

Some fuel is in the fuel tankApproximately 0V
[Ignition switch ON]

No fuel is in the fuel tankBATTERY VOLTAGE
(11 - 14V)
39 B/OR Fuel transport pump relay[Engine is running]

Some fuel is in the fuel tankApproximately 0V
[Engine is running]

No fuel is in the fuel tankBATTERY VOLTAGE
(11 - 14V)
PBIB1944E
Operating sound should exist.
PBIB2015E

FUEL TRANSPORT PUMP
EC-1335
[YD (WITH EURO-OBD)]
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2. CHECK FUEL TRASPORT PUMP FUNCTION
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Install suitable harness between ECM harness connector termi-
nal 39 and ground.
4. Turn ignition switch ON.
5. Listen the fuel transport pump operating sound.
OK or NG
OK >> GO TO 11.
NG >> GO TO 3.
3. CHECK FUEL TRASPORT PUMP RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Reconnect ECM harness connector.
3. Disconnect fuel transport pump relay.
4. Turn ignition switch ON.
5. Check voltage between fuel transport pump relay terminals 1, 5
and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING PERT
Check the following.

Harness connectors M17, B1

Fuse block (J/B) connectors M1

15A fuse

Harness for open or short between fuse and fuel transport pump relay
>> Repair harness or connectors. Operating sound should exist.
PBIB2016E
PBIB1933E
Voltage: Battery voltage
PBIB0471E

EC-1336
[YD (WITH EURO-OBD)]
FUEL TRANSPORT PUMP

5. CHECK FUEL TRANSPORT PUMP POWER SUPPLY AND GROUND CIRCUIT FOR OPEN AND
SHORT
1. Turn ignition switch OFF.
2. Disconnect fuel transport pump harness connector.
3. Check harness continuity between fuel transport pump relay ter-
minal 3 and fuel transport pump terminal 1 and between fuel
transport pump terminal 2 and ground. Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. DETECT MALFUNCTIONING PART
Check the following.

Harness connector B22, B128

Harness for open or short between fuel transport pump relay and fuel transport pump

Harness for open or short between fuel transport pump and ground
>> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK FUEL TRANSPORT PUMP RELAY OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 39 and fuel transport pump 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 9.
NG >> GO TO 8.
8. DETECT MALFUNSTIONING PART
Check the following.

Harness connector M17, B1 (LHD models)

Harness connector M18, B2 (RHD models)

Harness connector M63, F30

Harness for open or short between ECM and fuel transport pump relay
>> Repair open circuit or short to ground or short to power in harness or connectors.
9. CHECK FUEL TRANSPORT PUMP RELAY
Refer to EC-1338, "
Component Inspection" .
OK or NG
OK >> GO TO 10.
NG >> Replace fuel transport pump relay.Continuity should exist.
PBIB1931E
Continuity should exist.