2005 NISSAN X-TRAIL ignition

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.

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-1661
[YD (WITHOUT EURO-OBD)]
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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.

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-1667
[YD (WITHOUT EURO-OBD)]
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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 ProcedureEBS01263
1. CHECK OVERALL FUNCTION-I
With CONSULT-II
1. Turn ignition switch ON.
2. Select “BRAKE SW” in “DATA MONITOR” mode with CON-
SULT-II.
3. Check “BRAKE SW” indication under the following conditions.
Without CONSULT-II
Check voltage between ECM terminal 100 and ground under the fol-
lowing conditions.
OK or NG
OK (Models with ASCD)>>GO TO 2.
OK (Models without ASCD)>>INSPECTION END
NG >> GO TO 3.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
100 P Stop lamp switch[Ignition switch OFF]

Brake pedal: Fully releasedApproximately 0V
[Ignition switch OFF]

Brake pedal: Slightly depressedBATTERY VOLTAGE
(11 - 14V)
101 GY/L ASCD brake switch[Ignition switch ON]

Brake pedal and clutch pedal: Fully releasedBATTERY VOLTAGE
(11 - 14V)
[Ignition switch ON]

Brake pedal and/or clutch pedal: Slightly
depressedApproximately 0V
CONDITION INDICATION
When brake pedal is slightly depressed ON
When brake pedal is fully released OFF
PBIB0472E
Condition Voltage
When brake pedal is slightly depressed battery voltage
When brake pedal is fully released Approximately 0V
MBIB1097E

EC-1668
[YD (WITHOUT EURO-OBD)]
BRAKE SWITCH

2. CHECK OVERALL FUNCTION-II
With CONSULT-II
Check “BRAKE SW2” indication in “DATA MONITOR” mode.
Without CONSULT-II
1. Turn ignition switch ON.
2. Check voltage between ECM terminal 101 and ground under the
following conditions.
OK or NG
OK >>INSPECTION END
NG >> GO TO 7.
CONDITION INDICATION
When brake pedal and/or clutch pedal is fully depressed ON
When brake pedal and clutch pedal are slightly released OFF
SEC013D
Condition Voltage
When brake pedal and/or clutch pedal is slightly depressed Approximately 0V
When brake pedal and clutch pedal are fully released Battery voltage
PBIB1677E