NISSAN X-TRAIL 2005 Service Repair Manual

EGR VOLUME CONTROL SYSTEM
EC-1657
[YD (WITHOUT EURO-OBD)]
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2. Check resistance between the following terminals.

terminal 2 and terminals 1, 3

terminal 5 and terminals 4, 6
If NG, replace EGR volume control valve.
If OK, go to next step.
3. Remove EGR volume control valve from cylinder head.
4. Reconnect EGR volume control valve harness connector.
5. Turn ignition switch ON.
6. Perform “EGR VOL CONT/V” in “ACTIVE TEST” mode with CONSULT-II. Check that EGR volume control
valve shaft moves smoothly forward and backward according to the valve opening.
If NG, replace the EGR volume control valve.
NOTE:
When installing the EGR volume control valve, make sure that the shaft is in the same position before
checking.
Without CONSULT-II
1. Disconnect EGR volume control valve harness connector.
Temperature °C (°F) Resistance Ω
20 (68) 13 - 17
PBIB2014E
SEF819Y

EC-1658
[YD (WITHOUT EURO-OBD)]
EGR VOLUME CONTROL SYSTEM

2. Check resistance between the following terminals.

terminal 2 and terminals 1, 3

terminal 5 and terminals 4, 6
If NG, replace EGR volume control valve.
If OK, go to next step.
3. Remove EGR volume control valve from cylinder head.
4. Reconnect EGR volume control valve harness connector.
5. Turn ignition switch ON and OFF.
6. Check that EGR volume control valve shaft moves smoothly for-
ward and backward according to the ignition switch position.
If NG, replace EGR volume control valve.
NOTE:
When installing the EGR volume control valve, make sure that
the shaft is in the same position before checking.
Removal and InstallationEBS0125S
EGR VOLUME CONTROL VALVE
Refer to EM-146, "INTAKE MANIFOLD" .
Temperature °C (°F) Resistance Ω
20 (68) 13 - 17
PBIB2014E
SEF560W

TC BOOST CONTROL SOLENOID VALVE
EC-1659
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TC BOOST CONTROL SOLENOID VALVEPFP:14956
DescriptionEBS0125T
The turbocharger boost control solenoid valve controls vacuum sig-
nal to the turbocharger boost control actuator. By changing the vari-
able nozzle vane opening through the rods, the intake air volume is
adjusted.
The turbocharger boost control solenoid valve is moved by ON/OFF
pulse from the ECM. The longer the ON pulse, the charge air pres-
sure rises.
MBIB0626E
PBIB1897E

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

Wiring DiagramEBS0125V
TBWB0010E

TC BOOST CONTROL SOLENOID VALVE
EC-1661
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Specification data are reference valves, and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may damage the
ECM's transistor. Use a ground other than ECM terminals, such as the ground.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnostic ProcedureEBS0125W
1. CHECK OVERALL FUNCTION
1. Start engine and let it idle.
2. Make sure that turbocharger control actuator rod moves slightly
when engine is started.
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
6LTurbocharger boost control
solenoid valve[Ignition switch ON]

Warm-up condition

Idle speed0 - 12.5V
[Ignition switch ON]

Warm-up condition

Engine speed is 2,000 rpm0 - 12.5V
MBIB0889E
MBIB0890E
PBIB1936E

EC-1662
[YD (WITHOUT EURO-OBD)]
TC BOOST CONTROL SOLENOID VALVE

2. CHECK TURBOCHARGER BOOST CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Disconnect turbocharger boost control solenoid valve harness
connector.
2. Turn ignition switch ON.
3. Check voltage between turbocharger boost control solenoid
valve terminals 1 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors F30, M63

Harness for open and short between turbocharger boost control solenoid valve and ECM relay

Harness for open and short between turbocharger boost control solenoid valve and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK TURBOCHARGER BOOST CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR
OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 6 and turbocharger boost control solenoid valve terminal
2. 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 TURBOCHARGER BOOST CONTROL SOLENOID VALVE
Refer to EC-1663, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace turbocharger boost control solenoid valve.
PBIB1897E
Voltage: Battery voltage
PBIB1945E
Continuity should exist.

TC BOOST CONTROL SOLENOID VALVE
EC-1663
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6. CHECK INTERMITTENT INCIDENT
Refer to EC-1414, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS0125X
TURBOCHARGER BOOST CONTROL SOLENOID VALVE
1. Disconnect turbocharger boost control solenoid valve harness
connector.
2. Apply 12V direct current between turbocharger boost control
solenoid valve terminals.
3. Check air passage continuity of turbocharger boost control sole-
noid valve under the following conditions.
Operation takes less than 1 second.
If NG, replace turbocharger boost control solenoid valve.
Removal and InstallationEBS01HN2
TURBOCHARGER BOOST CONTROL SOLENOID VALVE
Refer to EM-151, "Removal and Installation" .
PBIB1897E
CONDITIONSAir passage continuity
between A and BAir passage continuity
between A and C
12V direct current supply
between terminals 1 and 2Ye s N o
No supply No Yes
MBIB0996E

EC-1664
[YD (WITHOUT EURO-OBD)]
BRAKE SWITCH

BRAKE SWITCHPFP:25230
DescriptionEBS0125Z
STOP LAMP SWITCH
The stop lamp switch (1) is installed to brake pedal bracket. The
switch senses brake pedal position and sends an ON-OFF signal to
the ECM. The ECM uses the signal to control the fuel injection con-
trol system.
ASCD BRAKE SWITCH (MODELS WITH ASCD)
When depress on the brake pedal, ASCD brake switch is turned OFF and stop lamp switch is turned ON. ECM
detects the state of the brake pedal by this input of two kinds (ON/OFF signal).
Refer to EC-1690, "
AUTOMATIC SPEED CONTROL DEVICE (ASCD)" for the ASCD function.
CONSULT-II Reference Value in Data Monitor ModeEBS01260
Specification data are reference values.
PBIB2883E
MONITOR ITEM CONDITION SPECIFICATION
BRAKE SW

Ignition switch: ONBrake pedal: Fully released OFF
Brake pedal: Slightly
depressedON
BRAKE SW2

Ignition switch: ONBrake pedal and clutch pedal:
Fully releasedOFF
Brake pedal and/or clutch
pedal: Slightly depressedON

BRAKE SWITCH
EC-1665
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Wiring DiagramEBS01FH0
MODELS WITHOUT ASCD
TBWA0580E

EC-1666
[YD (WITHOUT EURO-OBD)]
BRAKE SWITCH

MODELS WITH ASCD
TBWB0685E