NISSAN X-TRAIL 2005 Service Repair Manual

FUEL TRANSPORT PUMP
EC-1687
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

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-1689, "
Component Inspection" .
OK or NG
OK >> GO TO 10.
NG >> Replace fuel transport pump relay.Continuity should exist.
PBIB1931E
Continuity should exist.

EC-1688
[YD (WITHOUT EURO-OBD)]
FUEL TRANSPORT PUMP

10. CHECK TRANSPORT PUMP
Refer to EC-1689, "
Component Inspection" .
OK or NG
OK >> GO TO 14.
NG >> Replace fuel transport pump.
11 . CHECK FUEL LEVEL SWITCH POWER SUPPLY AND GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Disconnect sub fuel level sensor unit harness connector.
4. Check harness continuity between ECM terminal 14 and sub
fuel level sensor unit terminal 2, between sub fuel level sensor
unit terminal 4 and ground. Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 13.
NG >> GO TO 12.
12. DETECT MALFUNCTIONING PART
Check the following.

Harness connector F30, M63

Harness connector M78, B105 (LHD models)

Harness connectors M18, B2 (RHD models)

Harness for open or short between ECM and sub fuel level sensor unit

Harness for open or short between sub fuel level sensor unit and ground.
>> Repair open circuit or short to ground or short to power in harness or connectors.
13. CHECK FUEL LEVEL SWITCH
Refer to EC-1689, "
Component Inspection"
OK or NG
OK >> GO TO 14.
NG >> Replace sub fuel level sensor unit.
14. CHECK INTERMITTENT INCIDENT
Refer to EC-1414, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
>>INSPECTION END Continuity should exist.
PBIB1944E

FUEL TRANSPORT PUMP
EC-1689
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

Component InspectionEBS0126K
FUEL TRANSPORT PUMP RELAY
Check continuity between terminals 3 and 5 under the following coni-
tions.
FUEL TRANSPORT PUMP
1. Remove fuel transport pump.
2. Apply battery voltage between fuel transport pump terminal 1 and 2.
3. Check operating sound of fuel transport pump under the following conditions.
4. Listen fuel transport pump operating sound.
FUEL LEVEL SWITCH
1. Confirm that the engine is cooled down and there are no fire hazards near the vehicle.
2. Check continuity between sub fuel level sensor unit terminal 2
and 4 under the following conditions.
Removal and InstallationEBS0126L
FUEL TRANSPORT PUMP
Refer to FL-23, "FUEL TANK" .
SUB FUEL LEVEL SENSOR UNIT
Refer to FL-19, "FUEL LEVEL SENSOR UNIT" .
Conditions Continuity
12V direct current supply between terminals 1 and 2 Yes
No current supply No
PBIB0098E
Conditions Operating sound
12V direct current supply between fuel transport pump
terminals 1 and 2Ye s
No current supply No
Conditions Continuity
Fuel level switch is soaked in fuel. Yes
Fuel level switch is not soaked in fuel. No
PBIB2015E

EC-1690
[YD (WITHOUT EURO-OBD)]
AUTOMATIC SPEED CONTROL DEVICE (ASCD)

AUTOMATIC SPEED CONTROL DEVICE (ASCD)PFP:18930
System DescriptionEBS01FEB
INPUT/OUTPUT SIGNAL CHART
BASIC ASCD SYSTEM
Refer to Owner's Manual for ASCD operating instructions.
Automatic Speed Control Device (ASCD) allows a driver to keep vehicle at predetermined constant speed
without depressing accelerator pedal. Driver can set vehicle speed in advance between approximately 40 km/
h (25 MPH) and 185 km/h (115 MPH).
ECM controls fuel injection value to regulate engine speed.
Operation status of ASCD is indicated by CRUISE indicator and SET indicator in combination meter. If any
malfunction occurs in ASCD system, it automatically deactivates control.
SET OPERATION
Press ASCD MAIN switch. (The CRUISE indicator in combination meter illuminates.)
When vehicle speed reaches a desired speed between approximately 40 km/h (25 MPH) and 185 km/h (115
MPH), press SET switch. (Then SET indicator in combination meter illuminates.)
ACCEL OPERATION
If the RESUME/ACCELERATE switch is depressed during cruise control driving, increase the vehicle speed
until the switch is released or vehicle speed reaches maximum speed controlled by the system.
And then ASCD will keep the new set speed.
CANCEL OPERATION
When any of following conditions exist, cruise operation will be canceled.

CANCEL switch is depressed

More than 2 switches at ASCD steering switch are depressed at the same time (Set speed will be
cleared.).

Brake pedal is depressed

Clutch pedal is depressed or gear position is changed to the neutral position

Vehicle speed increased to 13 km/h higher than the set speed

Vehicle speed decreased to 13 km/h lower than the set speed

ESP system is operated
When the ECM detects any of the following conditions, the ECM will cancel the cruise operation and inform
the driver by blinking indicator lamp.

Malfunction for some self-diagnoses regarding ASCD control: SET lamp will blink quickly.
If MAIN switch is turned to OFF during ASCD is activated, all of ASCD operations will be canceled and vehicle
speed memory will be erased.
COAST OPERATION
When the SET/COAST switch is depressed during cruise control driving, decrease vehicle set speed until the
switch is released. And then ASCD will keep the new set speed.
RESUME OPERATION
When the RESUME/ACCELERATE switch is depressed after cancel operation other than depressing MAIN
switch is performed, vehicle speed will return to last set speed. To resume vehicle set speed, vehicle condition
must meet following conditions.

Brake pedal is released

Clutch pedal is released

Vehicle speed is greater than 40 km/h (25 MPH) and less than 185 km/h (115 MPH)
Sensor Input signal to ECM ECM function Actuator
ASCD brake switch Brake pedal operation
ASCD vehicle speed control Fuel injector and Fuel pump Stop lamp switch Brake pedal operation
ASCD clutch switch Clutch pedal operation
ASCD steering switch ASCD steering switch operation
Combination meter Vehicle speed

AUTOMATIC SPEED CONTROL DEVICE (ASCD)
EC-1691
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

Component DescriptionEBS01FEC
ASCD STEERING SWITCH
Refer to EC-1557 .
ASCD BRAKE SWITCH
Refer to EC-1544 and EC-1664 .
ASCD CLUTCH SWITCH
Refer to EC-1544 .
STOP LAMP SWITCH
Refer to EC-1544 and EC-1664 .
ASCD INDICATOR
Refer to EC-1692 .

EC-1692
[YD (WITHOUT EURO-OBD)]
ASCD INDICATOR

ASCD INDICATORPFP:24814
Component DescriptionEBS01FED
ASCD indicator lamp illuminates to indicate ASCD operation status. The Lamp has two indicators, CRUISE
and SET, and is integrated in combination meter.
CRUISE indicator illuminates when MAIN switch on ASCD steering switch is turned ON to indicated that
ASCD system is ready for operation.
SET indicator illuminates when the following conditions are met.

CRUISE indicator is illuminated.

SET/COAST switch on ASCD steering switch is turned ON while vehicle speed is within the range of
ASCD setting.
SET indicator remains lit during ASCD control.
Refer to EC-1690, "
AUTOMATIC SPEED CONTROL DEVICE (ASCD)" for the ASCD function.

ASCD INDICATOR
EC-1693
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

Wiring Diagram—LHD ModelsEBS01FEE
TBWB0478E

EC-1694
[YD (WITHOUT EURO-OBD)]
ASCD INDICATOR

Wiring Diagram—RHD ModelsEBS01FEF
TBWB0647E

ASCD INDICATOR
EC-1695
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

Diagnostic ProcedureEBS01FEG
1. CHECK OVERALL FUNCTION
Check ASCD indicator under the following conditions.
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
2. CHECK DTC
Check that DTC U1000 is not displayed.
OK or NG
OK >> Perform trouble diagnoses for DTC U1000. Refer to EC-1425, "DTC U1000 CAN COMMUNICA-
TION LINE" .
NG >> GO TO 3.
3. CHECK COMBINATION METER OPERATION
Does combination meter operate normally?
Ye s o r N o
Ye s > > G O T O 4 .
No >> Check combination meter circuit. Refer to DI-4, "
COMBINATION METERS" .
4. CHECK INTERMITTENT INCIDENT
Refer to EC-1414, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
ASCD INDICATOR CONDITION SPECIFICATION
CRUISE LAMP

Ignition switch: ON
MAIN switch: Pressed at the
first time→at the 2nd timeON→OFF
SET LAMP

MAIN switch: ON

When vehicle speed is
between 40 km/h (25 MPH)
and 185 km/h (115 MPH)

COAST/SET switch pressed ON

COAST/SET switch released OFF

EC-1696
[YD (WITHOUT EURO-OBD)]
START SIGNAL

START SIGNALPFP:48750
Wiring DiagramEBS0126M
TBWA0582E