Page 537 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual DTC U1000, U1001 CAN COMMUNICATION LINE
EC-133
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DTC U1000, U1001 CAN COMMUNICATION LINEPFP:23710
DescriptionEBS010MB
CAN (Controller Area Network) is a NISSAN X-TRAIL 2005 Service Repair Manual DTC U1000, U1001 CAN COMMUNICATION LINE
EC-133
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DTC U1000, U1001 CAN COMMUNICATION LINEPFP:23710
DescriptionEBS010MB
CAN (Controller Area Network) is a](/manual-img/5/57403/w960_57403-536.png)
DTC U1000, U1001 CAN COMMUNICATION LINE
EC-133
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DTC U1000, U1001 CAN COMMUNICATION LINEPFP:23710
DescriptionEBS010MB
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
On Board Diagnosis LogicEBS010MC
*1: The MI will not light up for this self-diagnosis.
DTC Confirmation ProcedureEBS010MD
1. Turn ignition switch ON and wait at least 3 seconds.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. If 1st trip DTC is detected, go to EC-135, "
Diagnostic Procedure" .
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
U1000
1000
CAN communication
line
ECM cannot communicate to other control
units.
ECM cannot communicate for more than the
specified time.
Harness or connectors
(CAN communication line is open or
shorted.) U1001*
1
1001*1
Page 538 of 4555
EC-134
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DTC U1000, U1001 CAN COMMUNICATION LINE
Wiring DiagramEBS010ME
TBWA0595E
Page 539 of 4555
DTC U1000, U1001 CAN COMMUNICATION LINE
EC-135
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Diagnostic ProcedureEBS010MF
Go to LAN-4, "CAN Communication Unit" .
Page 540 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual EC-136
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DTC P0011 IVT CONTROL
DTC P0011 IVT CONTROLPFP:23796
DescriptionEBS010MG
SYSTEM DESCRIPTION
*: This signal is sent to the ECM through CAN communication line.
This mechani NISSAN X-TRAIL 2005 Service Repair Manual EC-136
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DTC P0011 IVT CONTROL
DTC P0011 IVT CONTROLPFP:23796
DescriptionEBS010MG
SYSTEM DESCRIPTION
*: This signal is sent to the ECM through CAN communication line.
This mechani](/manual-img/5/57403/w960_57403-539.png)
EC-136
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DTC P0011 IVT CONTROL
DTC P0011 IVT CONTROLPFP:23796
DescriptionEBS010MG
SYSTEM DESCRIPTION
*: This signal is sent to the ECM through CAN communication line.
This mechanism hydraulically controls cam phases continuously with the fixed operating angle of the intake
valve.
The ECM receives signals such as crankshaft position, camshaft position, engine speed, and engine coolant
temperature. Then, the ECM sends ON/OFF pulse duty signals to the intake valve timing control solenoid
valve depending on driving status. This makes it possible to control the shut/open timing of the intake valve to
increase engine torque in low/mid speed range and output in high-speed range.
CONSULT-II Reference Value in Data Monitor ModeEBS010MH
Specification data are reference values.
Sensor Input signal to ECM ECM function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed and piston position
Intake valve
timing controlIntake valve timing control
solenoid valve Engine coolant temperature sensor Engine coolant temperature
Wheel sensor* Vehicle speed
PBIB0540E
MONITOR ITEM CONDITION SPECIFICATION
INT/V TIM (B1)
Engine: After warming up
Air conditioner switch: OFF
Shift lever: P or N (A/T), Neutral
(M/T)
No loadIdle−5° - 5°CA
2,000 rpm Approx. 0° - 20°CA
INT/V SOL (B1)
Engine: After warming up
Air conditioner switch: OFF
Shift lever: P or N (A/T), Neutral
(M/T)
No loadIdle 0% - 2%
2,000 rpm Approx. 0% - 50%
Page 541 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual DTC P0011 IVT CONTROL
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On Board Diagnosis LogicEBS010MI
The MI will not light up for this diagnosis.
FAIL-SAFE MODE
ECM enters in fail-safe mode NISSAN X-TRAIL 2005 Service Repair Manual DTC P0011 IVT CONTROL
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On Board Diagnosis LogicEBS010MI
The MI will not light up for this diagnosis.
FAIL-SAFE MODE
ECM enters in fail-safe mode](/manual-img/5/57403/w960_57403-540.png)
DTC P0011 IVT CONTROL
EC-137
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On Board Diagnosis LogicEBS010MI
The MI will not light up for this diagnosis.
FAIL-SAFE MODE
ECM enters in fail-safe mode when the malfunction is detected.
DTC Confirmation ProcedureEBS010MJ
CAUTION:
Always drive at a safe speed.
NOTE:
If DTC P0011 is displayed with DTC P1111, first perform trouble diagnosis for DTC P1111. See EC-
290, "DTC P1111 IVT CONTROL SOLENOID VALVE" .
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait
at least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is between 10V and 16V at
idle.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode with
CONSULT-II.
2. Start engine and warm it up to the normal operating tempera-
ture.
3. Maintain the following conditions for at least 6 consecutive sec-
onds.
Hold the accelerator pedal as steady as possible.
4. Let engine idle for 10 seconds.
5. If the 1st trip DTC is detected, go to EC-138, "
Diagnostic Procedure" .
If the 1st trip DTC is not detected, go to next step.
6. Maintain the following conditions for at least 20 consecutive seconds.
7. If 1st trip DTC is detected, go to EC-138, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC No.Trouble diagnosis
nameDetecting condition Possible cause
P0011
0011Intake valve timing
control performanceThere is a gap between angle of target and
phase-control angle degree.
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)
Accumulation of debris to the signal pick-up
portion of the camshaft
Detected items Engine operating condition in fail-safe mode
Intake valve timing control The signal is not energized to the solenoid valve and the valve control does not function
ENG SPEED 1,200 - 2,000 rpm (A constant rotation is maintained.)
COOLANT TEMPS 60 - 120°C (176 - 194°F)
Shift leverA/T: P or N position
M/T: Neutral position
ENG SPEED 1,700 - 3,175 rpm (A constant rotation is maintained.)
COOLANT TEMPS 70 - 105°C (176 - 194°F)
Shift lever 1st or 2nd position
Driving location uphillDriving vehicle uphill
(Increased engine load will help maintain the driving
conditions required for this test.)
SEF174Y
Page 542 of 4555
EC-138
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DTC P0011 IVT CONTROL
Diagnostic ProcedureEBS010MK
1. CHECK CRANKSHAFT POSITION SENSOR (POS)
Refer to EC-255, "
Component Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Replace crankshaft position sensor (POS).
2. CHECK CAMSHAFT POSITION SENSOR (PHASE)
Refer to EC-262, "
Component Inspection" .
OK or NG
OK >> GO TO 3.
NG >> Replace camshaft position sensor (PHASE).
3. CHECK CAMSHAFT (INTAKE)
Check the following.
Accumulation of debris to the signal plate of camshaft rear end
Chipping signal plate of camshaft rear end
OK or NG
OK >> GO TO 4.
NG >> Remove debris and clean the signal plate of camshaft
rear end or replace camshaft.
4. CHECK INTERMITTENT INCIDENT
Refer to EC-124, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
For wiring diagram, refer to EC-251, "
Wiring Diagram" for CKP sensor (POS) and EC-258, "Wiring Diagram"
for CMP sensor (PHASE).
>>INSPECTION END
PBIB0565E
Page 543 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual DTC P0031, P0032 HO2S1 HEATER
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DTC P0031, P0032 HO2S1 HEATERPFP:22690
DescriptionEBS010ML
SYSTEM DESCRIPTION
The ECM performs ON/OFF duty control NISSAN X-TRAIL 2005 Service Repair Manual DTC P0031, P0032 HO2S1 HEATER
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DTC P0031, P0032 HO2S1 HEATERPFP:22690
DescriptionEBS010ML
SYSTEM DESCRIPTION
The ECM performs ON/OFF duty control](/manual-img/5/57403/w960_57403-542.png)
DTC P0031, P0032 HO2S1 HEATER
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DTC P0031, P0032 HO2S1 HEATERPFP:22690
DescriptionEBS010ML
SYSTEM DESCRIPTION
The ECM performs ON/OFF duty control of the heated oxygen sensor 1 heater corresponding to the engine
speed and engine coolant temperature. The duty percent varies with engine coolant temperature when engine
is started.
OPERATION
CONSULT-II Reference Value in Data Monitor ModeEBS010MM
Specification data are reference values.
On Board Diagnosis LogicEBS010MN
DTC Confirmation ProcedureEBS010MO
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is between 10.5V and 16V at
idle.
WITH CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
Sensor Input Signal to ECM ECM function Actuator
Camshaft position sensor (PHASE)
Crankshaft position sensor (POS)Engine speed
Heated oxygen sensor 1
heater controlHeated oxygen sensor 1
heater
Engine coolant temperature sensor Engine coolant temperature
Engine speed rpm Heated oxygen sensor 1 heater
Above 3,600 OFF
Below 3,600 ON
MONITOR ITEM CONDITION SPECIFICATION
HO2S1 HTR (B1)
Engine: After warming up
Engine speed: Below 3,600 rpmON
Engine speed: Above 3,600 rpm OFF
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
P0031
0031Heated oxygen
sensor 1 heater
control circuit lowThe current amperage in the heated oxygen
sensor 1 heater circuit is out of the normal
range.
(An excessively low voltage signal is sent to
ECM through the heated oxygen sensor 1
heater.)
Harness or connectors
(The heated oxygen sensor 1 heater circuit is
open or shorted.)
Heater oxygen sensor 1 heater
P0032
0032Heated oxygen
sensor 1 heater
control circuit highThe current amperage in the heated oxygen
sensor 1 heater circuit is out of the normal
range.
(An excessively high voltage signal is sent to
ECM through the heated oxygen sensor 1
heater.)
Harness or connectors
(The heated oxygen sensor 1 heater circuit is
shorted.)
Heater oxygen sensor 1 heater
Page 544 of 4555
EC-140
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DTC P0031, P0032 HO2S1 HEATER
3. Turn ignition switch ON and select “DATA MONITOR” mode with
CONSULT-II.
4. Start engine and run it for at least 6 seconds at idle speed.
5. If 1st trip DTC is detected, go to EC-142, "
Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
SEF174Y